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Автор: Grafiati
Опубліковано: 14 березня 2023

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Статті в журналах з теми "Dense radio access network"

1

Atanasov, Ivaylo I., and Evelina N. Pencheva. "Programmability of Connectivity Control." Elektronika ir Elektrotechnika 27, no. 2 (April 29, 2021): 78–85. http://dx.doi.org/10.5755/j02.eie.28819.

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Анотація:
Network programmability and edge computing as key features of next generation communications enable innovative services. While the programmability is focused on the core network of the fifth-generation system, the edge computing moves the network intelligence to the radio access network. This paper presents a study on the programmability of connectivity control as a function of radio access network using Multi-access Edge Computing. The capability of using more than one radio access technology simultaneously enhances reliability and increases the throughput, especially in dense networks. Opening the radio access network interfaces for programmability of multi-connectivity enables analytics applications to control the device connections to multiple radio links simultaneously based on information of radio conditions, user location or specific policies. The research novelty is in opening the radio access network interfaces for edge applications to access connectivity control.
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Fokin, Grigoriy A. "SIMULATION OF ULTRA DENSE 5G RADIO ACCESS NETWORKS WITH BEAMFORMING." T-Comm 15, no. 5 (2021): 4–21. http://dx.doi.org/10.36724/2072-8735-2021-15-5-4-21.

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In this paper, we investigate the connectivity and probability of successful radio reception in the Poisson model of a 5G ultra-dense radio access network formed by devices with the possibility of location aware beamforming. The difference be-tween the proposed model and the existing prototypes is the complex account for the gains of devices, as well as the influence of radio wave propagation losses, slow and fast fading in the radio channel on the performance of the radio access network. The study is carried out for sessions of directional and omni-directional radio communication, and the beamforming mode is based on the preliminary positioning of neighboring devices. Mathematical modeling of a set of simultaneously operating radio lines in the Poisson model of an ultra-dense 5G radio access network makes it possible to estimate the gain in connectivity and the probability of successful radio reception when forming a beam based on preliminary positioning of devices in comparison with the case of omnidirectional antennas. The results of mathematical modeling of a ultra-dense radio access network with devices equipped with six-element circular antenna arrays showed a significant increase in connectivity indicators and the probability of successful radio reception in comparison with the case of omnidirectional antennas and confirmed the possibility of spatial multiplexing of simultaneous transmissions with a territorial separation of devices on 20% of the range of radio coverage based on the signal-to-noise ratio criterion. The result of the study is the establishment of the dependences of the connectivity and the probability of successful radio reception for an ultra-dense 5G radio access network, built on the basis of devices operating in the adaptive diagramming mode, as well as confirmation of the possibilities of spatial multiplexing of simultaneously operating transceiver devices with their territorial separation by 20% of the range of radio coverage based on the signal-to-interference ratio criterion. The obtained dependences of connectivity and the probability of successful radio reception allows to scientifically substantiate construction of an initial approximation of ultra-dense 5G radio access network from devices with the possibility of beamforming based on positioning, taking into account practical recommendations for their territorial diversity with an ultra-dense distribution.
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3

Fokin, G. "Evaluation of Interference in Ultra-Dense 5G Radio Access Networks with Beamforming." Telecom IT 8, no. 4 (December 23, 2020): 35–59. http://dx.doi.org/10.31854/2307-1303-2020-8-4-35-59.

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In this paper, we investigate the dependence of the level of intersystem interference on the beam width of the adaptively formed antenna radiation pattern and the territorial separation of neighboring devices in ultra-dense 5G radio access networks. The results of simulation modeling of a radio access network based on 19 base stations with the parameterization of the antenna array gain by the width of the radiation pattern in the horizontal plane show that when the base station beam is di-rected to the user device and narrowed from 360° to 5°, the level of intrasystem interference decreases by 15 dB compared with the case of omnidirectional antennas. The results of simulation of a radio access network based on 19 three-sector base stations with planar antenna arrays of 64 elements illustrate a significant reduction in the level of interference in comparison with the case of omnidirectional antennas and, in order to obtain zones of a positive signal-to-noise ratio, confirm the need for a territorial separation of neighboring devices by 10–20 % of the range of radio coverage.
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4

Koudouridis, Georgios P., and Pablo Soldati. "Trading off Network Density with Frequency Spectrum for Resource Optimization in 5G Ultra-Dense Networks." Technologies 6, no. 4 (December 1, 2018): 114. http://dx.doi.org/10.3390/technologies6040114.

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Анотація:
To effectively increase the capacity in 5G wireless networks requires more spectrum and denser network deployments. However, due to the increasing network density, the coordination of network and spectrum management becomes a challenging task both within a single operator’s network and among multiple operators’ networks. In this article, we develop new radio resource management (RRM) algorithms for adapting the frequency spectrum and the density of active access nodes in 5G ultra-dense networks (UDNs) to the traffic load and the user density in different geographical areas of the network. To this end, we formulate a network optimization problem where the allocation of spectrum bandwidth and the density of active access nodes are optimized to minimize a joint cost function, and we exploit Lagrange duality techniques to develop provably optimal network-scheduling algorithms. In particular, we develop density algorithms for two application scenarios. The first scenario solves the resource management problem for an operator of an ultra-dense network with exclusive access to a pool of frequency resources, while the second scenario applies to the management of the network density of collocated UDNs that belong to multiple operators sharing the same frequency spectrum. Simulation results demonstrate how effectively the algorithms can adapt the allocation of the spectrum allocation and the density of active access nodes over space and time.
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Gui, Jinsong, and Jianglin Liu. "An Efficient Radio Access Resource Management Scheme Based on Priority Strategy in Dense mmWave Cellular Networks." Wireless Communications and Mobile Computing 2020 (September 15, 2020): 1–19. http://dx.doi.org/10.1155/2020/8891660.

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In millimeter wave (mmWave) communication systems, beamforming-enabled directional transmission and network densification are usually used to overcome severe signal path loss problem and improve signal coverage quality. The combination of directional transmission and network densification poses a challenge to radio access resource management. The existing work presented an effective solution for dense mmWave wireless local area networks (WLANs). However, this scheme cannot adapt to network expansion when it is applied directly to dense mmWave cellular networks. In addition, there is still room for improvement in terms of energy efficiency and throughput. Therefore, we firstly propose an efficient hierarchical beamforming training (BFT) mechanism to establish directional links, which allows all the small cell base stations (SBSs) to participate in the merging of training frames to adapt to network expansion. Then, we design a BFT information-aided radio access resource allocation algorithm to improve the downlink energy efficiency of the entire mmWave cellular network by reasonably selecting beam directions and optimizing transmission powers and beam widths. Simulation results show that the proposed hierarchical BFT mechanism has the smaller overhead of BFT than the existing BFT mechanism, and the proposed BFT information-aided radio access resource allocation algorithm outperforms the existing corresponding algorithm in terms of average energy efficiency and throughput per link.
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Gribaudo, Marco, Daniele Manini, and Carla Fabiana Chiasserini. "Modelling user radio access in dense heterogeneous networks." Performance Evaluation 146 (March 2021): 102167. http://dx.doi.org/10.1016/j.peva.2020.102167.

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Patkar, Ankit. "5G Wireless Technology." International Journal for Research in Applied Science and Engineering Technology 10, no. 3 (March 31, 2022): 1519–24. http://dx.doi.org/10.22214/ijraset.2022.40930.

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Abstract: After the up rise of 4G wireless mobile technology takes place; researchers, mobile operator industries representative, academic institutions have started to look into the advancement (technological) towards 5G communication networks due to some main demands that are meliorated data rates, better capacity, minimized latency and better QoS (Quality of Service). To established the 5G mobile communication technological foundation, various research works or projects entailing main mobile infrastructure manufacturers, academia and international mobile network operators have been introduced recently. Nevertheless, 5G mobile services to be made available for use, their architecture, and their performance have not been evidently explicated. In this paper, we represent thorough overview of 5G the next generation mobile technology. We mainly throws light on 5G network architecture, 5G radio spectrum, ultra-dense radio access networks (UDRAN), traffic offloading of mobile, cognitive radio (CR), software defined radio (SDR), software defined networking (SDN), mixed infrastructure, and 5G network impact on the society. Keywords: 5G wireless technology, evolution from 4G to 5G
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Kalfas, George, Dimitris Palianopoulos, Agapi Mesodiakaki, Marios Gatzianas, Christos Vagionas, Ronis Maximidis, and Nikos Pleros. "A QoS-Enabled Medium-Transparent MAC Protocol for Fiber-Wireless 5G RAN Transport Networks." Applied Sciences 12, no. 17 (August 30, 2022): 8708. http://dx.doi.org/10.3390/app12178708.

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In order to meet the ever-increasing 5G and beyond Radio Access Network (RAN) densification demands, Fiber-Wireless transport networks are expected to play a key role in accelerating 5G deployment by providing the essential RAN flexibility, while at the same time avoiding costly fiber-trenching. Due to the inefficiency of the Radio-and-Fiber (R&F) networks for application in dense RAN topologies, Analog-Radio-over-Fiber (A-RoF) technology is regarded as a key enabling solution, since it greatly simplifies the remote antenna while offering very high spectral efficiency. For this type of dense A-RoF network, new and efficient Medium-Transparent-Medium Access Control (MT-MAC) protocols are required that can concurrently arbitrate optical and wireless resources, while at the same time offering the necessary Quality-of-Service (QoS) for correct operation of the combined Fronthaul/Midhaul/Backhaul segments present in 5G disaggregated RANs. In this paper, we propose a QoS-enabled MT-MAC (qMT-MAC) protocol that can combine Fronthaul/Midhaul/Backhaul flows under the same framework, while satisfying the strict delay and jitter requirements set by the relevant standards. Results show that qMT-MAC concurrently achieves the delay and jitter requirements for combined Fronthaul/Midhaul/Backhaul traffic even when loads approach the network’s capacity, while attested enhanced prioritization policies can offer up to a 64% delay reduction over State-of-the-Art MT-MAC protocols.
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He, Shiwen, Yiyun Chen, Ju Ren, Yongming Huang, Luxi Yang, and Yaoxue Zhang. "Decentralized Precoding for Cache-Enabled Ultra-Dense Radio Access Networks." IEEE Wireless Communications Letters 8, no. 2 (April 2019): 404–7. http://dx.doi.org/10.1109/lwc.2018.2873671.

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Shepard, Timothy J. "A channel access scheme for large dense packet radio networks." ACM SIGCOMM Computer Communication Review 26, no. 4 (October 1996): 219–30. http://dx.doi.org/10.1145/248157.248176.

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Дисертації з теми "Dense radio access network"

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Thainesh, Joseph S. "Radio access network (RAN) signalling architecture for dense mobile network." Thesis, University of Surrey, 2016. http://epubs.surrey.ac.uk/811126/.

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Анотація:
Small cells are becoming a promising solution for providing enhanced coverage and increasing system capacity in a large-scale small cell network. In such a network, the large number of small cells may cause mobility signalling overload on the core network (CN) due to frequent handovers, which impact the users Quality of Experience (QoE). This is one of the major challenges in dense small cell networks. Such a challenge has been considered, this thesis addresses this challenging task to design an effective signalling architecture in dense small cell networks. First, in order to reduce the signalling overhead incurred by path switching operations in the small cell network, a new mobility control function, termed the Small Cell Controller (SCC) is introduced to the existing base station (BS) on the Radio-Access-Network(RAN)-side. Based on the signalling architecture, a clustering optimisation algorithm is proposed in order to select the optimal SCC in a highly user density environment. Specifically, this algorithm is designed to select multiple optimal SCCs due to the growth in number of small cells in the large-scale environment. Finally, a scalable architecture for handling the control plane failures in heterogeneous networks is proposed. In that architecture, the proposed SCC scheme controls and manages the affected small cells in a clustered fashion during the macro cell fail-over period. Particularly, the proposed SCC scheme can be flexibly configured into a hybrid scenario. For operational reduction (reducing a number of direct S1 connections to the CN), better scalability (reducing a number of S1 bearers on the CN) and reduction of signalling load on the CN, the proposed radio access network (RAN) signalling architecture is a viable and preferable option for dense small cell networks. Besides, the proposed signalling architecture is evaluated through realistic simulation studies.
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Jarrar, Majed. "Radio Over Fibre Passive Optical Network Integration for The Smart Grid." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32779.

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During the last three decades, the significant increase in electricity demand, and its consequences, has appeared as a serious concern for the utility companies, but no major changes have been applied to the conventional power grid infrastructure. Recently, researchers have identified efficient control and power distribution mechanisms as the immediate challenges for conventional power grids. The next step for conventional power grid towards the Smart Grid is to provide energy efficiency management along with higher reliability via smart services, in which the application of Information and Communication Technology (ICT) is inevitable. ICT introduces powerful tools to comply with the smart grid requirements. Among various ICT properties, the telecommunication network plays a key role for providing a secure infrastructure. The two-way digital communication system provides an interaction between energy suppliers and consumers for managing, controlling and optimizing energy distribution. We can also define the smart grid as a two-way flow of energy and control information, where the electricity consumers can generate energy using green energy resources. The main objective of this thesis is to select an effective data communication infrastructure to support the smart grid services by considering a hybrid wireless and optical communication technologies. Radio-over-Fibre (RoF) networks are considered as a potential solution to provide a fast, reliable and efficient network backbone with the optical access network integration and the flexibility and mobility of the wireless network. Therefore, we adopt the integration of RoF to Passive Optical Network (PON) as a broadband access network to transmit smart grid data along with the Fiber to the Home/Building/Curb (FTTx) traffic through the shared fibre, and utilizing Wavelength Division Multiplexing (WDM). Finally, we present and analyze the simulation results for the aforementioned infrastructure based on our enhanced ROF-PON integration model.
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3

Lim, Christopher. "Optimizing access radio in multi-radio mesh network /." View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?CSED%202009%20LIM.

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Tsai, Pi-Kuang. "Indoor hybrid infrared-radio access network." Thesis, University of Cambridge, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.614020.

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Lei, Rui. "Cloud Radio Access Network in constrained fronthaul." Thesis, University of York, 2017. http://etheses.whiterose.ac.uk/21293/.

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The Cloud Radio Access Network (C-RAN) has been proposed for the provision of advanced fourth and fifth generation wireless communication services. The C-RAN system have been shown to reduce costs, and can provide high spectral efficiency and energy efficiency. The fronthaul in such networks, defined as the transmission links between Remote Radio Units (RRUs) and a central Baseband Unit (BBU), usually has high fronthaul load and constrained capacity. In this thesis, we explore and investigate the basic C-RAN system structure, based on which we propose two developed C-RAN systems. With each system we evaluate the Bit Error Ratio (BER) performance and transmission efficiency in multiple scenarios, and give advanced solutions to reduce the fronthaul load. We also analyse the effect of quantization on BPSK and QPSK modulation schemes, with different detection methods. Error control in fronthaul transmission is considered as erroneous frames may be received at the BBU. Error Detection Coding and Error Correction Coding approaches can be applied to the fronthaul network. They may increase the fronthaul latency, but great improve the end-to-end BER performance. Source compression techniques such as Slepian-Wolf (SW) coding can compress two correlated sources separately and de-compress them jointly. Since each RRU serves many user terminals, and some of them may also be served by another neighbour RRU, which results similarly in correlation of the received data between two RRUs. In this thesis, we applied the SW code to the C-RAN system and evaluate the compression rate achieved in fronthaul networks.
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Chang, Chia-Yu. "Cloudification and Slicing in 5G Radio Access Network". Electronic Thesis or Diss., Sorbonne université, 2018. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2018SORUS293.pdf.

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Анотація:
Au cours des dernières décennies, la croissance des statistiques d’utilisation de réseau exige une technologique évolutive. Une question naturelle surgit dans nos esprits: que sera la 5G? Pour répondre à cette question, l’architecture 5G doit être conçue avec un certain niveau de flexibilité via l’intégration des principes de softwarization et virtualisation. Le réseau peut être utilisé de manière efficace et indépendante via la création de plusieurs espaces séparées logiquement, appelés tranches de réseau. De plus, chaque réseau logique peut déployer ses fonctions de réseau dans un environnement de nuage avec la flexibilité d’exécution. À cette fin, l’objectif de cette thèse est d’étudier ces deux techniques: (a) C-RAN et (b) découpage de RAN. Dans la première partie, nous étudions C-RAN, dans lequel les stations de base monolithiques sont remplacées par (1) les éléments radio distribués et (2) les pools centralisés pour des unités de traitement en bande de base. Le concept C-RAN est toujours confronté à des exigences sévères en matière de capacité et de latence de l’interface fronthaul qui connecte l’unité de radio distante distribuée à l’unité de traitement en bande de base centralisée. Dans la deuxième partie, nous nous concentrons sur le découpage RAN non seulement pour permettre des différents niveaux d’isolation et de partage à chaque tranche de réseau, mais également pour customiser le plan de contrôle, le plan utilisateur et la logique de contrôle de réseau virtualisé. Par conséquent, nous proposons un environnement d’exécution flexible pour le système de slicing, nommé «RAN Runtime» pour héberger les instances de service sur chacun des modules RAN sous-jacents
Over the past few decades, the continuing growth of network statistics requires a constantly evolving technology. Therefore, a natural question arises in our minds: what will 5G be? To answer this question, the 5G architecture must be designed with a certain level of flexibility through the integration of softwarization and virtualization principles. Therefore, we can see that 5G will provide a paradigm shift beyond radio access technology in order to establish an agile and sophisticated communication system. The network can be used efficiently and independently by creating multiple logically separated spaces, called network slices. In addition, each logical network can deploy its network functions in a flexible cloud environment. To this end, the goal of this thesis is to study these two techniques: (a) Cloud-RAN and (b) RAN splitting. In the first part, our focus is on the C-RAN concept, in which monolithic base stations are replaced by (1) distributed radio elements and (2) centralized pools for baseband processing units. The C-RAN notion is still confronted with stringent capacity and latency requirements of the fronthaul interface that connects the distributed remote radio unit to the centralized baseband processing unit. In the second part, we focus on RAN cutting not only to allow different levels of isolation and sharing at each slice of network, but also to customize the control plane, user plane and control logic. Therefore, we provide a flexible runtime environment for the "RAN Runtime" slicing system to host service instances on each of the underlying RAN modules
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Montojo, Villasanta Javier, and Viñas Manuel Maqueda. "Congestion Identification in a Radio Access Transport Network." Thesis, KTH, Radio Systems Laboratory (RS Lab), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-142437.

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The convergence of mobile services and Internet has brought a radical change in mobile networks. An all IP network architecture, an evolution of the radio access transport network, is required to support new high-bandwidth services. Unfortunately, existing control mechanisms are insufficient to guarantee end users a high quality of experience. However, coordinating radio and transport network resources is expected to yield a more efficient solution. This thesis project investigates the interactions between the congestion avoidance protocols, explicit congestion notification, and the traffic engineering metrics for latency and bandwidth, when using Open Shortest Path First with traffic engineering (OSPF-TE) as a routing protocol. Using knowledge of these interactions, it is possible to identify the appearance of bottlenecks and to control the congestion in the transport links within a radio access transport network. Augmenting a topology map with the network’s current characteristics and reacting to evidence of potential congestion, further actions, such as handovers can be taken to ensure the users experience their expected quality of experience. The proposed method has been validated in a test bed. The results obtained from experiments and measurements in this test bed provide a clear picture of how the traffic flows in the network. Furthermore, the behavior of the network observed in these experiments, in terms of real-time performance and statistical analysis of metrics over a period of time, shows the efficiency of this proposed solution.
Tjänstekonvergensen av Internet- och mobila tjänster har medfört en radikal förändring i mobilnäten. En ”All IP” nätverksarkitektur, en utveckling av radios transportnät. Utvecklingen krävs för att stödja de nya bredbandiga tjänsterna. Tyvärr är befintliga kontrollmekanismer otillräckliga för att garantera användarens kvalitetsupplevelse. Med att samordna radio- och transportnätverkets resurser förväntar man sig en effektivare lösning. Detta examensarbete undersöker samspelet mellan protokoll för att undvika överlast, direkt indikation av överlast och trafikal statistik för fördröjning och bandbredd med trafikstyrning baserat på fördröjning och bandbredd , vid användning av Open Shortest Path First ( OSPF - TE ) som routingprotokoll. Med hjälp av information om dessa interaktioner, är det möjligt att identifiera uppkomsten av flaskhalsar och för att styra trafikstockningar i transportförbindelser inom ett radioaccess transportnät. En utökad topologikarta med nätverkets aktuella egenskaper kommer att reagera på en potentiell överbelastning. Ytterligare åtgärder, till exempel överlämningar, vidtas i mobilnätet för att säkerställa användarens upplevda kvalitet. Den föreslagna metoden har validerats i en testmiljö. Resultaten från experiment och mätningar i denna testmiljö ger en tydlig bild av hur trafikflödena framskrider i nätverket. Beteendet hos nätverket som observeras i dessa experiment, i termer av realtidsprestanda och statistisk analys av mätvärden över en tidsperiod, visar effektiviteten av denna föreslagna lösning.
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Simard, François. "A packet radio network design for field, mobile multimedia communications, network configuration, radio channel access and network management." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ28459.pdf.

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9

Juarez, Maribel. "Structuring Lean Thinking in the Radio Access Network Area." Thesis, Linköpings universitet, Institutionen för ekonomisk och industriell utveckling, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-110839.

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Анотація:
Customer’ demands, higher quality, faster and safer deliveries are some reasons for unexpected changes in the organizations. It has incremented complexity and cost. Lean production is known as a methodology to make improvements in manufacturing areas such as mentioned above and it is focused on the process of a product. But, Lean Thinking is a management strategy to make improvements in the process of a product or service and it is based on five principles. It allows having the process close to the customer eliminates tasks that do not add value and produces with low costs and high quality. However, there are some concepts ambiguous to be applied effectively to the Radio Access Network area in wireless telecom industry as a service company. Radio Access Network area transmits Radio frequency (RF) signals from the Radio Base Station (RBS) to the user equipment (UE) or mobile phone and is an area to present dynamic changes by high technology innovation. Therefore, the aim of this study is to identify improvements through for the Radio Access Network area. This thesis was structured to know how the five Lean principles and Lean tools can be used in the Radio Access Network area and the benefits that it could have. The study was realized through a qualitative research and five semi-structured interviews. A manager, team leaders and engineers of wireless telecom industry vendor and operators were the participants for this study. The results of major impact for Lean principles and Lean tools were VSM and Flow principles and Waste as Lean tool found for the Radio Access Network area. Project definition, resource planning and VOC were some improvements revealed for VSM principle. Furthermore, faster and optimal tools, training for engineers, knowledge in software and employee empowerment were some improvements found for Flow principle. Waste Lean tool showed some improvements found on customer’s focus, clear communication and waiting time reduction. Cross functional teams were other aspects that provided quality performance in the projects. This study seemingly is a good start for making decisions and for the high technology innovation and dynamic changes for telecom service companies.
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10

Al-Samman, Imad. "The integration of cloud radio access network in 5G." Thesis, University of Bristol, 2018. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.752772.

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Книги з теми "Dense radio access network"

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Li, Xi. Radio Access Network Dimensioning for 3G UMTS. Wiesbaden: Vieweg+Teubner, 2011. http://dx.doi.org/10.1007/978-3-8348-8111-3.

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service), SpringerLink (Online, ed. Radio Access Network Dimensioning for 3G UMTS. Wiesbaden: Vieweg+Teubner Verlag / Springer Fachmedien Wiesbaden GmbH, Wiesbaden, 2011.

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3

Johnson, Chris. Radio access network for UMTS: Principles and practice. Hoboken, NJ: John Wiley & Sons, 2008.

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4

Wireless access and the local telephone network. Boston: Artech House, 1992.

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5

Jaana, Laiho, Wacker Achim, and Novosad Tomáš, eds. Radio network planning and optimisation for UMTS. Hoboken, N.J: Wiley, 2005.

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6

service), ScienceDirect (Online, ed. Mobile WiMAX: A systems approach to understanding the IEEE 802.16m radio access network. London: Academic, 2011.

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7

J, Nawrocki Maciej, Dohler Mischa, and Aghvami A. Hamid, eds. Understanding UMTS radio network modelling, planning and automated optimisation: Theory and practice / edited by Maciej J. Nawrocki, Mischa Dohler, A. Hamid Aghvami. Chichester: John Wiley & Sons, 2006.

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8

Camenisch, Jan. Open Research Problems in Network Security: IFIP WG 11.4 International Workshop, iNetSec 2010, Sofia, Bulgaria, March 5-6, 2010, Revised Selected Papers. Berlin, Heidelberg: IFIP International Federation for Information Processing, 2011.

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9

Launay, Frederic. NG-RAN And 5G-NR: 5G Radio Access Network and Radio Interface. Wiley & Sons, Incorporated, John, 2021.

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Launay, Frederic. NG-RAN And 5G-NR: 5G Radio Access Network and Radio Interface. Wiley & Sons, Incorporated, John, 2021.

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Частини книг з теми "Dense radio access network"

1

Naghian, Siamäk, and Heikki Kaaranen. "UMTS Radio Access Network." In UMTS Networks, 99–142. Chichester, UK: John Wiley & Sons, Ltd, 2005. http://dx.doi.org/10.1002/047001105x.ch5.

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Longoni, Fabio, Atte Länsisalmi, and Antti Toskala. "Radio Access Network Architecture." In WCDMA for UMTS, 75–98. Chichester, UK: John Wiley & Sons, Ltd, 2005. http://dx.doi.org/10.1002/0470870982.ch5.

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Vaezi, Mojtaba, and Ying Zhang. "Radio Access Network Evolution." In Wireless Networks, 67–86. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-54496-0_6.

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Longoni, Fabio, Atte Länsisalmi, and Antti Toskala. "Radio Access Network Architecture." In WCDMA for UMTS, 75–96. Chichester, UK: John Wiley & Sons, Ltd, 2010. http://dx.doi.org/10.1002/9780470669501.ch5.

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Asif, Saad Z. "4G/5G Radio Access Network." In 5G Mobile Communications Concepts and Technologies, 131–60. First edition. | Boca Raton, FL : CRC Press/Taylor & Francis: CRC Press, 2018. http://dx.doi.org/10.1201/9780429466342-9.

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Li, Xi. "UMTS Terrestrial Radio Access Network (UTRAN)." In Radio Access Network Dimensioning for 3G UMTS, 29–57. Wiesbaden: Vieweg+Teubner, 2011. http://dx.doi.org/10.1007/978-3-8348-8111-3_3.

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Gong, Jinjin, Lu Ge, Xin Su, and Jie Zeng. "Radio Access Network Slicing in 5G." In Advances in Intelligent Systems and Computing, 207–10. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-56538-5_22.

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Hwang, C. W., and A. H. Aghvami. "Radio Access Network Selection Scheme for Software Defined Radio." In Mobile Communications, 113–18. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/3-540-36555-9_12.

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Ahmadi, Sassan. "Overview of IEEE 802.16m Radio Access Technology." In WiMAX Technology and Network Evolution, 87–145. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9780470633021.ch5.

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Nikaein, Navid, Eryk Schiller, Romain Favraud, Raymond Knopp, Islam Alyafawi, and Torsten Braun. "Towards a Cloud-Native Radio Access Network." In Studies in Big Data, 171–202. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-45145-9_8.

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Тези доповідей конференцій з теми "Dense radio access network"

1

Huang, Siqi, Qiang Liu, Tao Han, and Nirwan Ansari. "Data-Driven Network Optimization in Ultra-Dense Radio Access Networks." In 2017 IEEE Global Communications Conference (GLOBECOM 2017). IEEE, 2017. http://dx.doi.org/10.1109/glocom.2017.8255003.

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2

Huang, Siqi, Tao Han, and Nirwan Ansari. "Big-data-driven network partitioning for ultra-dense radio access networks." In ICC 2017 - 2017 IEEE International Conference on Communications. IEEE, 2017. http://dx.doi.org/10.1109/icc.2017.7996364.

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Koudouridis, Georgios P., Pablo Soldati, Henrik Lundqvist, and Christer Qvarfordt. "User-centric scheduled ultra-dense radio access networks." In 2016 23rd International Conference on Telecommunications (ICT). IEEE, 2016. http://dx.doi.org/10.1109/ict.2016.7500423.

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Kela, Petteri, Mario Costa, Jussi Salmi, Kari Leppanen, Jussi Turkka, Tuomas Hiltunen, and Michal Hronec. "A Novel Radio Frame Structure for 5G Dense Outdoor Radio Access Networks." In 2015 IEEE 81st Vehicular Technology Conference (VTC Spring). IEEE, 2015. http://dx.doi.org/10.1109/vtcspring.2015.7145635.

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Soldati, Pablo, and Georgios P. Koudouridis. "Distributed spectrum access in dense 5G networks." In 2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC). IEEE, 2015. http://dx.doi.org/10.1109/pimrc.2015.7343609.

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Shepard, Timothy J. "A channel access scheme for large dense packet radio networks." In Conference proceedings. New York, New York, USA: ACM Press, 1996. http://dx.doi.org/10.1145/248156.248176.

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Dat, Pham Tien, Atsushi Kanno, Keizo Inagaki, François Rottenberg, Jerome Louveaux, Naokatsu Yamamoto, and Tetsuya Kawanishi. "High-Speed Radio-on-Free-Space Optical Mobile Fronthaul System for Ultra-Dense Radio Access Network." In Optical Fiber Communication Conference. Washington, D.C.: OSA, 2020. http://dx.doi.org/10.1364/ofc.2020.w2a.37.

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Park, Jeonghun, and Robert W. Heath. "Threshold-Based Antenna Selection Algorithm for Dense Cloud Radio Access Networks." In GLOBECOM 2015 - 2015 IEEE Global Communications Conference. IEEE, 2014. http://dx.doi.org/10.1109/glocom.2014.7417757.

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Park, Jeonghun, and Robert W. Heath. "Threshold-Based Antenna Selection Algorithm for Dense Cloud Radio Access Networks." In GLOBECOM 2015 - 2015 IEEE Global Communications Conference. IEEE, 2015. http://dx.doi.org/10.1109/glocom.2015.7417757.

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Fokin, Grigoriy. "Channel Model for Location-Aware Beamforming in 5G Ultra-Dense mmWave Radio Access Network." In 2022 International Conference on Electrical Engineering and Photonics (EExPolytech). IEEE, 2022. http://dx.doi.org/10.1109/eexpolytech56308.2022.9950825.

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Звіти організацій з теми "Dense radio access network"

1

Winseck, D. Growth and Upheaval in the Network Media Economy in Canada, 1984-2019. Canadian Media Concentration Research Project (CMCRP), Carleton University, November 2020. http://dx.doi.org/10.22215/cmcrp/2020.1.

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Анотація:
This report examines the development of the media economy over the past thirty-five years. Since beginning this project a decade ago, we have focused on analyzing a comprehensive as possible selection of the biggest telecoms, Internet and media industries (based on revenue) in Canada, including: mobile wireless and wireline telecoms; Internet access; cable, satellite & IPTV; broadcast television, specialty and pay television services as well as Internet-based video subscription and download services; radio; newspapers; magazines; music; Internet advertising; social media; operating systems; browsers, etc.
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