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Academic literature on the topic 'MEC service'

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Published: 14 March 2023

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Journal articles on the topic "MEC service"

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Peng, Kai, Victor C. M. Leung, Xiaolong Xu, Lixin Zheng, Jiabin Wang, and Qingjia Huang. "A Survey on Mobile Edge Computing: Focusing on Service Adoption and Provision." Wireless Communications and Mobile Computing 2018 (October 10, 2018): 1–16. http://dx.doi.org/10.1155/2018/8267838.

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Mobile cloud computing (MCC) integrates cloud computing (CC) into mobile networks, prolonging the battery life of the mobile users (MUs). However, this mode may cause significant execution delay. To address the delay issue, a new mode known as mobile edge computing (MEC) has been proposed. MEC provides computing and storage service for the edge of network, which enables MUs to execute applications efficiently and meet the delay requirements. In this paper, we present a comprehensive survey of the MEC research from the perspective of service adoption and provision. We first describe the overview of MEC, including the definition, architecture, and service of MEC. After that we review the existing MUs-oriented service adoption of MEC, i.e., offloading. More specifically, the study on offloading is divided into two key taxonomies: computation offloading and data offloading. In addition, each of them is further divided into single MU offloading scheme and multi-MU offloading scheme. Then we survey edge server- (ES-) oriented service provision, including technical indicators, ES placement, and resource allocation. In addition, other issues like applications on MEC and open issues are investigated. Finally, we conclude the paper.
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Cui, Mengmeng, Yiming Fei, and Yin Liu. "A Survey on Secure Deployment of Mobile Services in Edge Computing." Security and Communication Networks 2021 (January 2, 2021): 1–8. http://dx.doi.org/10.1155/2021/8846239.

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Mobile edge computing (MEC) is an emerging technology that is recognized as a key to 5G networks. Because MEC provides an IT service environment and cloud-computing services at the edge of the mobile network, researchers hope to use MEC for secure service deployment, such as Internet of vehicles, Internet of Things (IoT), and autonomous vehicles. Because of the characteristics of MEC which do not have terminal servers, it tends to be deployed on the edge of networks. However, there are few related works that systematically introduce the deployment of MEC. Also, secure service deployment frameworks with MEC are even rare. For this reason, we have conducted a comprehensive and concrete survey of recent research studies on secure deployment. Although numerous research studies and experiments about MEC service deployment have been conducted, there are few systematic summaries that conclude basic concepts and development strategies about secure service deployment of commercial MEC. To make up for the gap, a detailed and complete survey about relative achievements is presented.
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Niewolski, Wojciech, Tomasz W. Nowak, Mariusz Sepczuk, and Zbigniew Kotulski. "Token-Based Authentication Framework for 5G MEC Mobile Networks." Electronics 10, no. 14 (July 18, 2021): 1724. http://dx.doi.org/10.3390/electronics10141724.

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MEC technology provides a distributed computing environment in 5G mobile networks for application and service hosting. It allows customers with different requirements and professional competencies to use the services offered by external suppliers. We consider a service access control framework on 5G MEC networks that is efficient, flexible, and user-friendly. Its central element is the MEC Enabler, which handles AAA requests for stakeholders accessing services hosted on the edge servers. The JSON Web Token (JWT) open standard is a suitable tool for the MEC Enabler to manage access control credentials and transfer them securely between parties. In this paper, in the context of access control, we propose the token reference pattern called JSON MEC Access Token (JMAT) and analyze the effectiveness of its available protection methods in compliance with the standard requirements of MEC-hosted services in 5G networks.
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Lee, Juyong, Jeong-Weon Kim, and Jihoon Lee. "Mobile Personal Multi-Access Edge Computing Architecture Composed of Individual User Devices." Applied Sciences 10, no. 13 (July 5, 2020): 4643. http://dx.doi.org/10.3390/app10134643.

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The Multi-Access Edge Computing (MEC) paradigm provides a promising solution to solve the resource-insufficiency problem in user mobile devices by offloading computation-intensive and delay-sensitive computing services to nearby edge nodes. However, there is a lack of research on the efficient task offloading and mobility support when mobile users frequently move in the MEC environment. In this paper, we propose the mobile personal MEC architecture that utilizes a user’s mobile device as an MEC server (MECS) so that mobile users can receive fast response and continuous service delivery. The results show that the proposed scheme reduces the average service delay and provides efficient task offloading compared to the existing MEC scheme. In addition, the proposed scheme outperforms the existing MEC scheme because the existing mobile user devices are used as MECS, enabling low-latency service and continuous service delivery, even as the mobile user requests and task sizes increase.
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Cao, Qian, Qilin Wu, Bo Liu, Shaowei Zhang, and Yiwen Zhang. "An Optimization Method for Mobile Edge Service Migration in Cyberphysical Power System." Wireless Communications and Mobile Computing 2021 (February 13, 2021): 1–12. http://dx.doi.org/10.1155/2021/6610654.

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To relieve the pressure of processing computation-intensive applications on mobile devices and avoid high latency during data transmission, edge computing is proposed to solve this problem. Mobile edge computing (MEC) allows the deployment of MEC servers at the edge of the network to interact with users on the premise of low transmission delay, thereby improving the quality of service (QoS) for users. However, due to the high mobility of users, with the continuous change of geographical location, when users exceed the signal range of the MEC server, the services they request on the MEC server will also be migrated to other MEC servers. The handoff process may involve high response delays caused by service forwarding, thereby greatly degrading QoS. For the above problems, in this paper, a service migration optimization method based on transmission power control is proposed. First, according to the transmission power of the MEC server, the user’s activity range is divided into multiple subregions based on a Voronoi diagram. Therefore, there is one MEC server in each subregion, and the size of each subregion is adjusted by controlling the transmission power of the MEC server to minimize the number of wireless handoffs and the energy consumption of the MEC server. Then, the particle swarm optimization (PSO) is adopted to solve the above multiobjective optimization problem. Finally, the effectiveness of the proposed method is verified through extensive experiments.
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Pham, Xuan-Qui, Tien-Dung Nguyen, VanDung Nguyen, and Eui-Nam Huh. "Utility-Centric Service Provisioning in Multi-Access Edge Computing." Applied Sciences 9, no. 18 (September 9, 2019): 3776. http://dx.doi.org/10.3390/app9183776.

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Recently, multi-access edge computing (MEC) is a promising paradigm to offer resource-intensive and latency-sensitive services for IoT devices by pushing computing functionalities away from the core cloud to the edge of networks. Most existing research has focused on effectively improving the use of computing resources for computation offloading while neglecting non-trivial amounts of data, which need to be pre-stored to enable service execution (e.g., virtual/augmented reality, video analytics, etc.). In this paper, we, therefore, investigate service provisioning in MEC consisting of two sub-problems: (i) service placement determining services to be placed in each MEC node under its storage capacity constraint, and (ii) request scheduling determining where to schedule each request considering network delay and computation limitation of each MEC node. The main objective is proposed to ensure the quality of experience (QoE) of users, which is also yet to be studied extensively. A utility function modeling user perception of service latency is used to evaluate QoE. We formulate the problem of service provisioning in MEC as an Integer Nonlinear Programming (INLP), aiming at maximizing the total utility of all users. We then propose a Nested-Genetic Algorithm (Nested-GA) consisting of two genetic algorithms, each of whom solves a sub-problem regarding service placement or request scheduling decisions. Finally, simulation results demonstrate that our proposal outperforms conventional methods in terms of the total utility and achieves close-to-optimal solutions.
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Kim, Dongkyun, and Yong-Hwan Kim. "Dynamic Virtual Network Slicing and Orchestration for Selective MEC Services over Wide-Area SDN." Algorithms 13, no. 10 (September 27, 2020): 245. http://dx.doi.org/10.3390/a13100245.

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Multi-access edge computing (MEC) has become an essential technology for collecting, analyzing, and processing data generated by widely distributed user equipment (UE), wireless end-hosts, Internet of things (IoT) sensors, etc., providing real-time and high-quality networking services with ultralow end-to-end latency guaranteed between various user devices and edge cloud computing nodes. However, the cloud resources at the MEC on-site (access point) and edge site are restricted and insufficient mainly because of the operation and management constraints (e.g., limited space and capacity), particularly in the case of on-demand and dynamic service resource deployment. In this regard, we propose a selective MEC resource allocation scheme adopting a multitier architecture over a wide-area software-defined network (SDN) on the basis of our recent research work on virtual network slicing and resource orchestration. The proposed scheme provides an optimized MEC selection model considering end-to-end latency and efficient service resource utilization on the basis of the hierarchical MEC service architecture.
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Li, Jing, Weifa Liang, Zichuan Xu, Xiaohua Jia, and Wanlei Zhou. "Service Provisioning for Multi-source IoT Applications in Mobile Edge Computing." ACM Transactions on Sensor Networks 18, no. 2 (May 31, 2022): 1–25. http://dx.doi.org/10.1145/3484200.

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We are embracing an era of Internet of Things (IoT). The latency brought by unstable wireless networks caused by limited resources of IoT devices seriously impacts the quality of services of users, particularly the service delay they experienced. Mobile Edge Computing (MEC) technology provides promising solutions to delay-sensitive IoT applications, where cloudlets (edge servers) are co-located with wireless access points in the proximity of IoT devices. The service response latency for IoT applications can be significantly shortened due to that their data processing can be performed in a local MEC network. Meanwhile, most IoT applications usually impose Service Function Chain (SFC) enforcement on their data transmission, where each data packet from its source gateway of an IoT device to the destination (a cloudlet) of the IoT application must pass through each Virtual Network Function (VNF) in the SFC in an MEC network. However, little attention has been paid on such a service provisioning of multi-source IoT applications in an MEC network with SFC enforcement. In this article, we study service provisioning in an MEC network for multi-source IoT applications with SFC requirements and aiming at minimizing the cost of such service provisioning, where each IoT application has multiple data streams from different sources to be uploaded to a location (cloudlet) in the MEC network for aggregation, processing, and storage purposes. To this end, we first formulate two novel optimization problems: the cost minimization problem of service provisioning for a single multi-source IoT application, and the service provisioning problem for a set of multi-source IoT applications, respectively, and show that both problems are NP-hard. Second, we propose a service provisioning framework in the MEC network for multi-source IoT applications that consists of uploading stream data from multiple sources of the IoT application to the MEC network, data stream aggregation and routing through the VNF instance placement and sharing, and workload balancing among cloudlets. Third, we devise an efficient algorithm for the cost minimization problem built upon the proposed service provisioning framework, and further extend the solution for the service provisioning problem of a set of multi-source IoT applications. We finally evaluate the performance of the proposed algorithms through experimental simulations. Simulation results demonstrate that the proposed algorithms are promising.
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Zhang, Xiangjun, Weiguo Wu, Shiyuan Yang, and Xiong Wang. "Falcon: A Blockchain-Based Edge Service Migration Framework in MEC." Mobile Information Systems 2020 (October 16, 2020): 1–17. http://dx.doi.org/10.1155/2020/8820507.

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Driven by advanced 5G cellular systems, mobile edge computing (MEC) has emerged as a promising technology that can meet the energy efficiency and latency requirements of IoT applications. Edge service migration in the MEC environment plays an important role in ensuring user service quality and enhancing terminal computing capabilities. Application services on the edge side should be migrated from different edge servers to edge nodes closer to users, so that services follow users and ensure high-quality services. In addition, during the migration process, edge services face security challenges in an edge network environment without centralized management. To tackle this challenge, this paper innovatively proposes a blockchain-based security edge service migration framework, Falcon, which uses mobile agents different from VM and container as edge service carriers, making migration more flexible. Furthermore, we considered the dependencies between agents and designed a service migration algorithm to maximize the migration benefits and obtain better service quality. In order to ensure the migration of edge services in a safe and reliable environment, Falcon maintains an immutable alliance chain among multiple edge clouds. Finally, the experimental results show that “Falcon” has lower energy consumption and higher service quality.
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E, Xuefei, Zhonggui Ma, and JunFeng Huang. "Cluster Design and Optimization of SWIPT-Based MEC Networks with UAV Assistance." Wireless Communications and Mobile Computing 2021 (November 3, 2021): 1–14. http://dx.doi.org/10.1155/2021/6745460.

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In recent years, service isolation and service miniaturization have become very popular. The large services are dismantled into multiple low-cost and simple small services to improve the scalability and disaster tolerance of the entire services. A service network composed of unmanned aerial vehicles (UAVs) and MEC servers is proposed in this paper, which aims at decoupling multiple services of the SWIPT-MEC network. In this network, UAVs take charge of energy transmission and calculation task scheduling and MEC servers are focused on task calculation. To meet the resource requirements of the ground nodes (GNs) in the network, we designed a distributed iterative algorithm to solve the resource allocation decision problem of GNs and used the modified expert bat algorithm to complete the UAV’s trajectory planning in a two-dimensional space. The results show that the algorithm can formulate a more fair resource allocation strategy, and its performance is improved by 7% compared with the traditional bat algorithm. In addition, the algorithm in this paper can also adapt to changes in task length and has a certain degree of stability.
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Dissertations / Theses on the topic "MEC service"

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Behravesh, Rasoul <1988&gt. "Life-cycle management and placement of service function chains in MEC-enabled 5G networks." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amsdottorato.unibo.it/9732/1/Thesis.pdf.

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Recent advancements in mobile communication technology have led to the fifth generation of mobile cellular networks (5G), driven by the proliferation in data traffic demand, stringent latency requirements, and the desire for a fully connected world. This transformation calls for novel technology solutions such as Multi-access Edge Computing (MEC) and Network Function Virtualization (NFV) to satisfy service requirements while providing dynamic and instant service deployment. MEC and NFV are two principal and complementary enablers for 5G networks whose co-existence can lead to numerous benefits. Despite the numerous advantages MEC offers, physical resources at the edge are extremely scarce and require efficient utilization. In this doctoral dissertation, we first attempt to optimize resource utilization at the network edge for the scenario of live video streaming. We specifically utilize the real-time Radio Access Network (RAN) information available at the MEC servers to develop a machine learning-based prediction solution and anticipate user requests. Consequently, Integer Linear Programming (ILP) models are used to prefetch/cache video contents from a centralized video server. Regarding the advantages of NFV technology for the deployment of NFs, the second problem that this dissertation address is the proper association of the users to the gNBs along with efficient placement of SFCs on the substrate network. Our primary purpose is to find a proper embedding of the SFC in a hierarchical 5G network. The problem is formulated as a Mixed Integer Linear Programming (MILP) model, having the objective to minimize service provisioning cost, link utilization, and the effect of VNF migration on users' perceived quality of experience. After rigorously analyzing the proposed SFC placement and considering mobile networks' dynamicity, our next goal is to develop an ILP-based model that minimizes the resource provisioning cost by dynamically embed and scale SFCs so that provisioning cost is minimized while user requirements are met.
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Subramanya, Tejas. "Autonomic Management and Orchestration Strategies in MEC-Enabled 5G Networks." Doctoral thesis, Università degli studi di Trento, 2021. http://hdl.handle.net/11572/320883.

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5G and beyond mobile network technology promises to deliver unprecedented ultra-low latency and high data rates, paving the way for many novel applications and services. Network Function Virtualization (NFV) and Multi-access Edge Computing (MEC) are two technologies expected to play a vital role in achieving ambitious Quality of Service requirements of such applications. While NFV provides flexibility by enabling network functions to be dynamically deployed and inter-connected to realize Service Function Chains (SFC), MEC brings the computing capability to the mobile network's edges, thus reducing latency and alleviating the transport network load. However, adequate mechanisms are needed to meet the dynamically changing network service demands (i.e., in single and multiple domains) and optimally utilize the network resources while ensuring that the end-to-end latency requirement of services is always satisfied. In this dissertation work, we break the problem into three separate stages and present the solutions for each one of them.Firstly, we apply Artificial Intelligence (AI) techniques to drive NFV resource orchestration in MEC-enabled 5G architectures for single and multi-domain scenarios. We propose three deep learning approaches to perform horizontal and vertical Virtual Network Function (VNF) auto-scaling: (i) Multilayer Perceptron (MLP) classification and regression (single-domain), (ii) Centralized Artificial Neural Network (ANN), centralized Long-Short Term Memory (LSTM) and centralized Convolutional Neural Network-LSTM (CNN-LSTM) (single-domain), and (iii) Federated ANN, federated LSTM and federated CNN-LSTM (multi-domain). We evaluate the performance of each of these deep learning models trained over a commercial network operator dataset and investigate the pros and cons of different approaches for VNF auto-scaling. For the first approach, our results show that both MLP classifier and MLP regressor models have strong predicting capability for auto-scaling. However, MLP regressor outperforms MLP classifier in terms of accuracy. For the second approach (one-step prediction), CNN-LSTM performs the best for the QoS-prioritized objective and LSTM performs the best for the cost-prioritized objective. For the second approach (multi-step prediction), the encoder-decoder CNN-LSTM model outperforms the encoder-decoder LSTM model for both QoS and Cost prioritized objectives. For the third approach, both federated LSTM and federated CNN-LSTM models perform equally better than the federated ANN model. It was also noted that in general federated learning approaches performs poorly compared to centralized learning approaches. Secondly, we employ Integer Linear Programming (ILP) techniques to formulate and solve a joint user association and SFC placement problem, where each SFC represents a service requested by a user with end-to-end latency and data rate requirements. We also develop a comprehensive end-to-end latency model considering radio delay, backhaul network delay and SFC processing delay for 5G mobile networks. We evaluated the proposed model using simulations based on real-operator network topology and real-world latency values. Our results show that the average end-to-end latency reduces significantly when SFCs are placed at the ME hosts according to their latency and data rate demands. Furthermore, we propose an heuristic algorithm to address the issue of scalability in ILP, that can solve the above association/mapping problem in seconds rather than hours.Finally, we introduce lightMEC - a lightweight MEC platform for deploying mobile edge computing functionalities which allows hosting of low-latency and bandwidth-intensive applications at the network edge. Measurements conducted over a real-life test demonstrated that lightMEC could actually support practical MEC applications without requiring any change to existing mobile network nodes' functionality in the access and core network segments. The significant benefits of adopting the proposed architecture are analyzed based on a proof-of-concept demonstration of the content caching use case. Furthermore, we introduce the AI-driven Kubernetes orchestration prototype that we implemented by leveraging the lightMEC platform and assess the performance of the proposed deep learning models (from stage 1) in an experimental setup. The prototype evaluations confirm the simulation results achieved in stage 1 of the thesis.
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Nielsen, Anne-Linn, and Victoria Larsson. "Kundrelationer i bankbranschen : Hur banker med skilda verksamheter arbetar med kundrelationer idag." Thesis, Högskolan Dalarna, Företagsekonomi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:du-27967.

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The purpose of this study is to examine and compare how banks with differentiating operations work with their customer relationships. The financial market has changed because of digital advances in society as a whole and because of newly arisen competitors. This has created a new competition were the customer relationship is important as a competitive advantage. To establish how different banks work to retain and maintain their customer relationships we’ve conducted group interviews with banks with differentiating operations. The result shows that banks with different operations work slightly differently regarding their customer relationships. Large banks are more digitally driven and prone to adopt technological solutions. The smaller banks rely on word-of-mouth to gain new customers and attaches significant importance to creating a sort of affinity or an emotional commitment through their local presence. The bank insurance company’s priority is the interpersonal relationship with the customer and believes that this is where trust is built. Furthermore, the relationship between the customer and the banker seems to be stronger and more valued by the customer than the relationship between the customer and the bank as a brand.
Vårt syfte är att undersöka och jämföra hur banker med olika verksamhet arbetar med sina kundrelationer. Bankmarknaden har förändrats på grund av samhällets digitala utveckling och uppkomsten av nya aktörer. Detta har skapat en ny konkurrenssituation där relationen till kunden är viktig som en konkurrensfördel. För att uppnå detta har vi genomfört fokusgruppsintervjuer med banker som bedriver olika verksamheter. Resultatet visar att banker arbetar med kundrelationer på olika sätt. Storbanken är mer digitalt driven och satsar stort på teknologiska lösningar. Sparbanken förlitar sig på positiv ryktesspridning för nya kunder och lägger stor vikt vid att skapa en samhörighet med kunden genom lokal närvaro. Bankförsäkringsbolaget arbetar mycket med fysiska kundmöten och att där skapa förtroende och bygga en relation genom lokal närvaro. Bankförsäkringsbolaget arbetar mycket med fysiska kundmöten och att där skapa förtroende och bygga en relation genom den personliga kontakten. Vidare har vi sett att kunder tenderar att utveckla en starkare relation till en specifik rådgivare än till banken som varumärke och att kunder
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Krkic, Arman, and Johan Dalan. "En SOA utvärderingsmall med fokus på integration, arkitektur och tjänster : Ett praktikfall på Logica." Thesis, Högskolan Dalarna, Informatik, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:du-5057.

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Today, there are no standardized ways to characterize SOA, many are talking about SOA and many say they are using SOA. One way that we have chosen to characterize this phenomenon is through an evaluation that will indicate whether SOA have been used in the development. Basedon a Service Oriented Architecture literature study, we have created an evaluation pattern resulting SOA principles of integration, architecture and services. This evaluation was applied to Logica's own integration system AgrCom through an empirical study to result in a response indicating whether AgrCom is SOA based. The results of the evaluation show that AgrCom is part of an SOA solution but not an SOA as a whole concept. The study shows that it takes morethan just systems in an activity to be referred to as the SOA-based, hence the architecture of anactivity must be taken into account.
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Böök, Klas, and Christian Strand. "Jini kontra Web services, med intention att göra Web services pålitligt." Thesis, Växjö University, School of Mathematics and Systems Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-58.

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Detta examensarbete behandlar Service Oriented Architecture (SOA) och dess implementeringar Jini och Web services. SOA beskriver hur applikationsintegration mellan olika plattformar skall ske och innebär att applikationer designas som tjänster för att enkelt integreras med andra applikationer. Dynamisk lokalisering av tjänster via en registertjänst används för att applikationer skall finna andra applikationer. Vi designar och implementerar en mekanism i Web services som gör det möjligt att byta en tjänst under exekvering. Ett sådant byte kan vara intressant av två skäl, tjänster kan registreras utan att vara tillgängliga, eller att det uppstår ett fel under exekvering som gör att tjänsten blir otillgänglig.


This degree project is about Service Oriented Architecture (SOA) and its implementations Jini and Web services. SOA is a description of how application integration between different platforms can be carried out by designing applications as services, which implies an easier integration with other applications. Dynamic location of services is carried out by consultation with a register service so that applications can find other applications. We design and implement a mechanism in Web services that makes it possible to change service during execution. A change of service can be interesting for two reasons, the service might be registered but not available or there might be some sort of fault during execution that makes the service unavailable.

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Hu, Mei. "The impact of the new integrated older people's care services in Cambridgeshire on service users." Thesis, Anglia Ruskin University, 2011. https://arro.anglia.ac.uk/id/eprint/211749/1/Mei%20Hu%20thesis%202011.pdf.

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Social care and health services for older people in Cambridgeshire have been integrated since April 2004. This study examines the effect of the integration programme on service users. Previous research into health and social care integrations predominantly centre on process issues and pay much less attention to outcomes. No study has evaluated the impact of fully-integrated care services for the whole user group of older people. Theory-led programmatic approach was used in this study. Multi-method data collection and analysis were employed to uncover and examine the causal links, the contextual conditions, the implementation process, causal mechanisms, and intended and achieved outcomes of the integration programme. This study reveals an improvement in the physical functioning of one in three occupational equipment users; a rise in the level of satisfaction of 85% of occupational health and 82% of physiotherapy users; older people with complex problems and high-level needs were able to be helped to live at home; and waiting time for both assessment and for services within two weeks and four weeks were below the national achievement and the ministerial targets. It also reveals a lack of change outcomes in social care, and service users’ low level of satisfaction with social care services, which appear to be associated with the privatisation of long-term social care and the predominant aim in social work of achieving maintenance and prevention outcomes. The integration programme’s goals—unifying the care system, easier and simpler access to services and a single and quick assessment—were not fully reached, mainly because of users’ low awareness of the integration, incompatible ICT systems and lack of funding. This study contributes to knowledge on how the total integration in Cambridgeshire has benefited users and how theory-led programmatic approach can be used in this area and in the study of this kind of complex social programme.
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Andersson, Veronica. "Bröstcancerpatienters tillfredsställelse med den utredande vårdens kvalitet." Thesis, Uppsala universitet, Institutionen för folkhälso- och vårdvetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-166932.

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Syfte: Syftet med studien var att undersöka bröstcancerpatienters tillfredsställelse med vården under utredning av sin sjukdom samt att utforska vilka förbättringsbehov av vården patienterna uppgav. Metod: Samtliga patienter som rapporterades till Kvalitetsregistret för bröstcancer i Uppsala- Örebroregionen under 2007-2008 tillfrågades om deltagande i en enkätstudie. Undersökningsgruppen bestod av 165 kvinnor som i enkäten kommenterat den utredande vården. Enkätsvaren analyserades med kvalitativ innehållsanalys enligt Graneheim och Lundmans metod. Resultat: Bröstcancerpatienternas kommentarer gällde kategorierna organisation, kompetens, bemötande, information och generellt. Angående organisation uppgav patienterna behov av bättre samordning, högre personalkontinuitet, tillgång till en kontaktperson inom vården samt utökad psykosocial vård. Hög tillfredsställelse med vårdens kompetens rapporterades men även misstag samt upplevd bristande professionalitet hos vårdpersonalen. Vårdpersonalens bemötande uppgavs mestadels som tillfredsställande. Lägre tillfredsställelse rapporterades då vårdpersonalen förbisett patienten som individ. Tillfredsställelsen med information under utredning var hög då information getts personligen med tid för frågor och återkoppling. Då information varit svårtillgänglig, bristande eller ej anpassad efter patientens behov var tillfredsställelsen lägre. De generella kommentarerna indikerade hög tillfredsställelse. Slutsats: Bröstcancerpatienterna uppgav hög tillfredsställelse med kompetens och bemötande under utredningen. Lägre tillfredsställelse uppgavs med vårdens organisation och information. Förbättringsbehov som tydligast framgick var av ökad samordning av utredningens faser samt utökad psykosocial vård.
Purpose: The purpose was to examine breast cancer patients’ satisfaction with care during diagnostic process and to investigate their identified needs for improvement. Method: Patients reported to the Quality register for breast cancer in Uppsala- Örebro during 2007-2008 were asked to participate in a questionnaire study. The study population was 165 women who commented on the diagnostic process. Answers were analyzed using qualitative content analysis by Graneheim and Lundman. Result: Patients commented diagnostic services regarding organization, competence, interpersonal skills, information and general. Concerning organization they reported needs for better coordination, better personnel continuity, a contact person and more psychosocial care. High satisfaction with health care competence was reported but also mistakes and lack of professionalism. Personnel’s interpersonal skills appeared mostly satisfactory. Lower satisfaction was reported when personnel overlooked the patient as an individual. Satisfaction with information was high when information was given in person with time for questions and feedback, and lower when information was hard to access, lacking or not adjusted to the patients’ needs. General comments indicated high satisfaction. Conclusions: Patient satisfaction with competence and interpersonal skills was high while satisfaction with organization and information was lower. Diagnostic services can be improved by coordination and more psychosocial care.
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Johansson, Maja, and Akash Parmar. "Identifiering av tjänstersutvecklingsprocess hos svenska banker : En kvalitativ studie om New Service Development och svenska bankers arbete med tjänsteinnovation." Thesis, Linnéuniversitetet, Institutionen för ekonomistyrning och logistik (ELO), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-98033.

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Bakgrund: I linje med att digitaliseringen utvecklas har bankernas struktur påverkats. Tidigare forskning visat att den ekonomiska utvecklingen har drivits av innovation. Den ökande betydelsen av tjänster har medfört ett större fokus på tjänstens utvecklingsarbete. Tjänster är dock väldigt understigande och improduktivt utvecklade i jämförelse med produkter, vilket gör det svårt att generellt utveckla tjänster. Då utvecklingens syfte är att förstärka organisationens position på marknaden kan det vara intressant att se utvecklingsprocessen för svenska banker. Syfte: Syftet med denna studie är att identifiera hur svenska banker arbetar med tjänsteinnovation, hur deras utvecklingsprocess ser ut samt vad för svårigheter som uppstår i samband med detta. Studien syftar också till att undersöka huruvida New Service Development processen faktiskt används av svenska banker i praktiken. Vidare ska studien tillföra en ökad förståelse för svenska bankers utveckling av tjänster, hur dess utvecklingsprocess ser ut, samt vilka som är involverade. Detta med ett ursprung i NSD-processen. Metod: Undersökningen utgår från en kvalitativ metod, där den har genomförts med en flerfallstudie på fyra olika banker i Sverige. Det empiriska materialet har samlats in genom semi-strukturerade intervjuer via onlinemöte och e-mail. Intervjuerna utfördes med hjälp av en intervjuguide. Därefter har materialet analyserats för att kunna upptäcka skillnader och likheter mellan bankerna. Slutsats: Vi ser uppenbara likheter mellan de fyra studerade bankerna att en New Service Development process inte används fullt ut hos någon av de. Därmed drar vi slutsatsen att NSD inte direkt används i praktiken hos svenska banker. Däremot kan vi se att vissa delar av bankernas utvecklingsprocess går att likna med utvecklingen av en NSD-process. Vidare också att bankerna tenderar till att arbeta med tjänsteinnovation på liknande sätt, men att utvecklingsprocessen inom tjänsterna är någorlunda specifik för vardera bank.
Background: In line with the development of digitalisation, the banks' structure has been affected. Previous research has shown that economic development has been driven by innovation. The growing importance of services has led to a greater focus on service development. However, services are very inferior and unproductively developed in comparison with products, which makes it difficult to generally develop services. As the purpose of the development is to strengthen the organization's position in the market, it may be interesting to see the development process for Swedish banks. Purpose: The purpose of this study is to identify how Swedish banks’ work with service innovation, what their development process looks like and what difficulties arise in connection with this. The study also aims to investigate whether the New Service Development process is actually used by Swedish banks in practice. Furthermore, the study will provide an increased understanding of Swedish banks' development of services, how its development process looks like, and who is involved. This originates in the NSD process. Method: The survey is based on a qualitative method, where it has been conducted with a multiple case study at four different banks in Sweden. The empirical material has been collected through semi-structured interviews with online meetings and e-mail. The interviews were conducted using an interview guide. Then, the material has been analyzed in order to detect differences and similarities between the banks. Conclusions: We see obvious similarities between the four banks studied that a New Service Development process is not fully used by any of them. Thus, we conclude that NSD is not directly used in practice by Swedish banks. On the other hand, we can see that certain parts of the banks' development process can be compared to the development of an NSD process. Furthermore, also that the banks tend to work with service innovation in a similar way, but that the development process within the services is fairly specific to each bank.
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Ruksa, Kitija, and Elrener Törnquist. "Service recovery : Vilka strategier har hotell som arbetar med service recovery?" Thesis, Örebro universitet, Restaurang- och hotellhögskolan, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-61245.

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Farshin, Alireza. "Realizing Low-Latency Internet Services via Low-Level Optimization of NFV Service Chains : Every nanosecond counts!" Licentiate thesis, KTH, Network Systems Laboratory (NS Lab), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-249664.

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By virtue of the recent technological developments in cloud computing, more applications are deployed in a cloud. Among these modern cloud-based applications, some require bounded and predictable low-latency responses. However, the current cloud infrastructure is unsuitable as it cannot satisfy these requirements, due to many limitations in both hardware and software. This licentiate thesis describes attempts to reduce the latency of Internet services by carefully studying the currently available infrastructure, optimizing it, and improving its performance. The focus is to optimize the performance of network functions deployed on commodity hardware, known as network function virtualization (NFV). The performance of NFV is one of the major sources of latency for Internet services. The first contribution is related to optimizing the software. This project began by investigating the possibility of superoptimizing virtualized network functions(VNFs). This began with a literature review of available superoptimization techniques, then one of the state-of-the-art superoptimization tools was selected to analyze the crucial metrics affecting application performance. The result of our analysis demonstrated that having better cache metrics could potentially improve the performance of all applications. The second contribution of this thesis employs the results of the first part by taking a step toward optimizing cache performance of time-critical NFV service chains. By doing so, we reduced the tail latencies of such systems running at 100Gbps. This is an important achievement as it increases the probability of realizing bounded and predictable latency for Internet services.
Tack vare den senaste tekniska utvecklingen inom beräkningar i molnet(“cloud computing”) används allt fler tillämpningar i molnlösningar. Flera avdessa moderna molnbaserade tillämpningar kräver korta svarstider är låga ochatt dessa ska vara förutsägbara och ligga inom givna gränser. Den nuvarandemolninfrastrukturen är dock otillräcklig eftersom den inte kan uppfylla dessa krav,på grund av olika typer av begränsningar i både hårdvara och mjukvara. I denna licentiatavhandling beskrivs försök att minska fördröjningen iinternettjänster genom att noggrant studera den nuvarande tillgängligainfrastrukturen, optimera den och förbättra dess prestanda. Fokus ligger påatt optimera prestanda för nätverksfunktioner som realiseras med hjälp avstandardhårdvara, känt som nätverksfunktionsvirtualisering (NFV). Prestanda hosNFV är en av de viktigaste källorna till fördröjning i internettjänster. Det första bidraget är relaterat till att optimera mjukvaran. Detta projektbörjade med att undersöka möjligheten att “superoptimera” virtualiseradenätverksfunktioner (VNF). Detta inleddes med en litteraturöversikt av tillgängligasuperoptimeringstekniker, och sedan valdes ett av de toppmodernasuperoptimeringsverktygen för att analysera de viktiga mätvärden som påverkartillämpningssprestanda. Resultatet av vår analys visade att bättre cache-mätningar potentiellt skulle kunna förbättra prestanda för alla tillämpningar. Det andra bidraget i denna avhandling utnyttjar resultaten från den förstadelen genom att ta ett steg mot att optimera cache-prestanda för tidskritiskakedjor av NFV-tjänster. Genom att göra så reducerade vi de långa fördröjningarnahos sådana system som kördes vid 100 Gbps. Detta är en viktig bedrift eftersomdetta ökar sannolikheten för att uppnå en begränsad och förutsägbar fördrörninghos internettjänster.

QC 20190415


Time-Critical Clouds
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Books on the topic "MEC service"

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Nogueira, Maria Cecília Diniz. Pólo de Suporte Técnico UFMG/MEC-PRONAICA: Uma proposta metodológica. Belo Horizonte: Universidade Federal de Minas Gerais, Pró-Reitoria de Extensão, Coordenadoria de Programas de Ação Social Comunitária, 1995.

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Live, Fyrand, ed. Samspill med sosialt nettverk. Oslo: Universitetsforlaget, 1993.

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Finland. Lagar om statens tjänstemän med lagberedningshandlingar. Helsingfors: [Finansministeriet], 1987.

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Dreyer, Arek. Mac OS X directory services v10.5. Berkeley, Calif: Peachpit Press, 2009.

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Dreyer, Arek. Mac OS X directory services v10.5. Berkeley, Calif: Peachpit Press, 2009.

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Socialstyrelsen, Sweden, ed. I dialog med välfärden. [Stockholm]: Socialstyrelsen, 1989.

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Bjørnaraa, Torgeir. Norsk tjenestemannsrett: Kommentarer til tjenestemannsloven med forskrift mv. Oslo: Tano Aschehoug, 2000.

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Sukhorenko, S. N. Shchit i mech Otechestva. Minsk: Mezhdunar. t︠s︡entr integrat︠s︡ionnoĭ informat︠s︡ii, 2006.

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Kozhevnikov, Vadim Mikhaĭlovich. Shchit i mech: Roman. Minsk: "Vyshėĭshai︠a︡ shkola", 1985.

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Kozhevnikov, Vadim Mikhaĭlovich. Shchit i mech: Roman. Moskva: SP "I͡U︡nisam", 1993.

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Book chapters on the topic "MEC service"

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Sabella, Dario. "MEC Service APIs in Action." In Multi-access Edge Computing: Software Development at the Network Edge, 115–56. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-79618-1_5.

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Xu, Zhuohan, YanPing Yang, and Bing Shi. "Joint Optimization of Trajectory and Frequency in Energy Constrained Multi-UAV Assisted MEC System." In Service-Oriented Computing, 422–29. Cham: Springer Nature Switzerland, 2022. http://dx.doi.org/10.1007/978-3-031-20984-0_30.

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Zhang, Yan. "The Future of Mobile Edge Computing." In Simula SpringerBriefs on Computing, 81–105. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-83944-4_7.

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AbstractThis chapter first introduces the fundamental principles of blockchain and the integration of blockchain and mobile edge computing (MEC). Blockchain is a distributed ledger technology with a few desirable security characteristics. The integration of blockchain and MEC can improve the security of current MEC systems and provide greater performance benefits in terms of better decentralization, security, privacy, and service efficiency. Then, the convergence of artificial intelligence (AI) and MEC is presented. A federated learning–empowered MEC architecture is introduced. To improve the performance of the proposed scheme, asynchronous federated learning is proposed. The integration of blockchain and federated learning is also presented to enhance the security and privacy of the federated learning–empowered MEC scheme. Finally, more MEC enabled applications are discussed.
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Jaseemuddin, Muhammad, Hager Ghouma, Maysam Fazeli, Ameera Al-Karkhi, Mohamad Eldakroury, and Uvaiz Ahmed. "Application Design and Service Provisioning for Multi-access Edge Cloud (MEC)." In Mobile Edge Computing, 527–63. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69893-5_21.

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Manariyo, Steve, Abdukodir Khakimov, Darya Pyatkina, and Ammar Muthanna. "Optimization Algorithm for IPTV Video Service Delivery over SDN Using MEC Technology." In Lecture Notes in Computer Science, 419–27. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-01168-0_38.

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Sabella, Dario. "MEC Standards on Edge Services." In Multi-access Edge Computing: Software Development at the Network Edge, 89–114. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-79618-1_4.

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Edge, Charles, and Daniel O’Donnell. "File Services." In Enterprise Mac Security, 347–60. Berkeley, CA: Apress, 2016. http://dx.doi.org/10.1007/978-1-4842-1712-2_13.

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Edge, Charles, William Barker, Beau Hunter, and Gene Sullivan. "File Services." In Enterprise Mac Security, 353–75. Berkeley, CA: Apress, 2010. http://dx.doi.org/10.1007/978-1-4302-2731-1_13.

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Edge, Charles S., and William Smith. "Directory Services." In Enterprise Mac Administrator’s Guide, 1–38. Berkeley, CA: Apress, 2015. http://dx.doi.org/10.1007/978-1-4842-1706-1_1.

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Edge, Charles S., Beau Hunter, and Zack Smith. "Directory Services." In Enterprise Mac Administrator’s Guide, 1–38. Berkeley, CA: Apress, 2009. http://dx.doi.org/10.1007/978-1-4302-2444-0_1.

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Conference papers on the topic "MEC service"

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Chen, Ruoyun, Hancheng Lu, and Pengfei Ma. "User-Centric Cooperative MEC Service Offloading." In 2021 IEEE Wireless Communications and Networking Conference (WCNC). IEEE, 2021. http://dx.doi.org/10.1109/wcnc49053.2021.9417354.

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Ranaweera, Pasika, Awaneesh Kumar Yadav, Madhusanka Liyanage, and Anca Delia Jurcut. "Service Migration Authentication Protocol for MEC." In GLOBECOM 2022 - 2022 IEEE Global Communications Conference. IEEE, 2022. http://dx.doi.org/10.1109/globecom48099.2022.10001261.

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Ntalampiras, Stavros, and Marco Fiore. "Forecasting Mobile Service Demands for Anticipatory MEC." In 2018 IEEE 19th International Symposium on "A World of Wireless, Mobile and Multimedia Networks" (WoWMoM). IEEE, 2018. http://dx.doi.org/10.1109/wowmom.2018.8449803.

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Wei Lingyun and Ling Jiafei. "Two-staged cloud computing service supply chain coordination with service interruptions." In 2013 International Conference on Mechatronic Sciences, Electric Engineering and Computer (MEC). IEEE, 2013. http://dx.doi.org/10.1109/mec.2013.6885479.

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Zhou Li-jun, Lv Hong, and Zhang Jie. "Sharing service of ordnance support information resources' metadata based on Web Service." In 2013 International Conference on Mechatronic Sciences, Electric Engineering and Computer (MEC). IEEE, 2013. http://dx.doi.org/10.1109/mec.2013.6885381.

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Bekkouche, Oussama, Somayeh Kianpisheh, and Tarik Taleb. "Toward Proactive Service Relocation for UAVs in MEC." In GLOBECOM 2021 - 2021 IEEE Global Communications Conference. IEEE, 2021. http://dx.doi.org/10.1109/globecom46510.2021.9685066.

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Zhang, Ye, Yong Tang, and Wenyong Wang. "Service Deployment and Service Request Optimization Scheduling in MEC enabled LEO Networks." In 2021 International Conference on Computer Communications and Networks (ICCCN). IEEE, 2021. http://dx.doi.org/10.1109/icccn52240.2021.9522294.

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Anastasopoulos, Markos, Anna Tzanakaki, and Dimitra Simeonidou. "Service Chaining in MEC – Assisted Large Scale 5G Networks." In 2018 European Conference on Optical Communication (ECOC). IEEE, 2018. http://dx.doi.org/10.1109/ecoc.2018.8535571.

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Wu, Binwei, Jiasen Wang, Yanyan Wang, Weiqian Tan, and Yudong Huang. "Achieving Deterministic Service in Mobile Edge Computing (MEC) Networks." In 2021 IEEE 29th International Conference on Network Protocols (ICNP). IEEE, 2021. http://dx.doi.org/10.1109/icnp52444.2021.9651958.

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Lentisco, Carlos M., Luis Bellido, Daniel Gonzalez-Sanchez, Ignacio D. Martinez-Casanueva, David Fernandez, and Ignacio Soto. "Extending the MEC Mobility Service to Support Cache Prefetching." In 2022 18th International Conference on the Design of Reliable Communication Networks (DRCN). IEEE, 2022. http://dx.doi.org/10.1109/drcn53993.2022.9758012.

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Reports on the topic "MEC service"

1

Stevenson, K. D. Combat Service Support MEU Commanders. Fort Belvoir, VA: Defense Technical Information Center, February 2005. http://dx.doi.org/10.21236/ada505067.

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Lindberg, Lars. Individanpassat stöd och service för personer med funktionsnedsättning – modeller i Norden. Nordens välfärdscenter, November 2021. http://dx.doi.org/10.52746/pnhs7819.

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På vilket sätt och hur kan modeller för individanpassat stöd som personlig budget stärka genomförandet av FN:s konvention om rättigheter för personer med funktionsnedsättning? Med personlig budget avses en penningsumma som beviljas den enskilde på basis av en bedömning av servicebehovet och kalkylering av en budget för ändamålet. Den enskilda kan för sin budget köpa den service hen behöver. Personlig budget är i bruk inom social- och hälsovården i flera länder. I Norden är personlig assistans främsta exemplet på sådana lösningar, men även andra modeller har prövats och tagits in inom social- och hälsovården, till exempel valfrihetssystem och ökade möjligheter för brukare att välja leverantör. I rapporten presenteras ett antal system för individanpassat stöd till personer med funktionsnedsättning som har genomförts i Norden och erfarenheterna av dessa. Kartläggningen har gjorts gemensamt av Nordens välfärdscenter och Institutet för hälsa och välfärd, THL, i Finland. Rapporten kommer att vara ett underlag i ett förslag till en kommande reform av stöd och service för personer med funktionsnedsättning i Finland.
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Cheshire, S., Z. Zhu, R. Wakikawa, and L. Zhang. Understanding Apple's Back to My Mac (BTMM) Service. RFC Editor, June 2011. http://dx.doi.org/10.17487/rfc6281.

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Acierno, Ronald, Martha Strachan, and Wendy Muzzy. Innovative Service Delivery for Secondary Prevention of PTSD in At-Risk OIF-OEF Service Men and Women. Fort Belvoir, VA: Defense Technical Information Center, April 2010. http://dx.doi.org/10.21236/ada537054.

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Acierno, Ronald, and Martha Strachan. Innovative Service Delivery for Secondary Prevention of PTSD in At-Risk OIF-OEF Service Men and Women. Fort Belvoir, VA: Defense Technical Information Center, April 2009. http://dx.doi.org/10.21236/ada506436.

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Acierno, Ronald, Erica Yuen, and Wendy Muzzy. Innovative Service Delivery for Secondary Prevention of PTSD in At-Risk OIF-OEF Service Men and Women. Fort Belvoir, VA: Defense Technical Information Center, April 2012. http://dx.doi.org/10.21236/ada562170.

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Acierno, Ronald, Erica Yuen, and Wendy Muzzy. Innovative Service Delivery for Secondary Prevention of PTSD in At-Risk OIF-OEF Service Men and Women. Fort Belvoir, VA: Defense Technical Information Center, August 2013. http://dx.doi.org/10.21236/ada593234.

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Aciemo, Ronald. Innovative Service Delivery for Secondary Prevention of PTSD in At-Risk OIF-OEF Service Men and Women. Fort Belvoir, VA: Defense Technical Information Center, April 2011. http://dx.doi.org/10.21236/ada547543.

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Muhoza, Cassilde, Wikman Anna, and Rocio Diaz-Chavez. Mainstreaming gender in urban public transport: lessons from Nairobi, Kampala and Dar es Salaam. Stockholm Environment Institute, May 2021. http://dx.doi.org/10.51414/sei2021.006.

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The urban population of Africa, the fastest urbanizing continent, has increased from 19% to 39% in the past 50 years, and the number of urban dwellers is projected to reach 770 million by 2030. However, while rapid urbanization has increased mobility and created a subsequent growth in demand for public transport in cities, this has not been met by the provision of adequate and sustainable infrastructure and services. The majority of low-income residents and the urban poor still lack access to adequate transport services and rely on non-motorized and public transport, which is often informal and characterized by poor service delivery. Lack of access to transport services limits access to opportunities that aren’t in the proximity of residential areas, such as education, healthcare, and employment. The urban public transport sector not only faces the challenge of poor service provision, but also of gender inequality. Research shows that, in the existing urban transport systems, there are significant differences in the travel patterns of and modes of transport used by women and men, and that these differences are associated with their roles and responsibilities in society. Moreover, the differences in travel patterns are characterized by unequal access to transport facilities and services. Women are generally underrepresented in the sector, in both its operation and decision-making. Women’s mobility needs and patterns are rarely integrated into transport infrastructure design and services and female users are often victims of harassment and assault. As cities rapidly expand, meeting the transport needs of their growing populations while paying attention to gender-differentiated mobility patterns is a prerequisite to achieving sustainability, livability and inclusivity. Gender mainstreaming in urban public transport is therefore a critical issue, but one which is under-researched in East Africa. This research explores gender issues in public transport in East Africa, focusing in particular on women’s inclusion in both public transport systems and transport policy decision-making processes and using case studies from three cities: Nairobi, Kampala and Dar es Salaam.
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Elhan-Kayalar, Yesim. Gender, Entrepreneurship and Coping with the COVID-19 Pandemic: The Case of GoFood Merchants in Indonesia. Asian Development Bank Institute, December 2022. http://dx.doi.org/10.56506/mrem3121.

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This paper examines business performance and crisis mitigation strategies among micro-, small-, and medium-sized enterprises (MSMEs) in Indonesia during the COVID-19 pandemic. We utilize a new primary data set based on administrative records, survey data, and follow-up interviews with merchants using the digital application GoFood, an on-demand cooked food delivery service. Three empirical findings emerge: First, the overall employment size of women-owned businesses shrank more than men-owned businesses after the pandemic outbreak; second, women were more likely than men to cut personal expenditures and use government assistance as crisis mitigation strategies; and third, competition increased sharply as new merchants entered the platform, with service areas of both incumbents and entrants shrinking over time. These results have implications for policies on women’s entrepreneurship, the uptake of business development services, and financing programs for MSMEs.
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