Relevant bibliographies by topics / User mobility

Academic literature on the topic 'User mobility'

Author: Grafiati
Published: 4 June 2021
Last updated: 28 January 2023

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Journal articles on the topic "User mobility"

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Secci, Stefano, Patrick Raad, and Pascal Gallard. "Linking Virtual Machine Mobility to User Mobility." IEEE Transactions on Network and Service Management 13, no. 4 (December 2016): 927–40. http://dx.doi.org/10.1109/tnsm.2016.2592241.

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Zonoozi, M. M., and P. Dassanayake. "User mobility modeling and characterization of mobility patterns." IEEE Journal on Selected Areas in Communications 15, no. 7 (1997): 1239–52. http://dx.doi.org/10.1109/49.622908.

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Wang, Guowei, Dongliang Liao, and Jing Li. "Complete User Mobility via User and Trajectory Embeddings." IEEE Access 6 (2018): 72125–36. http://dx.doi.org/10.1109/access.2018.2881457.

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Qi, Mengjun, Zhongyuan Wang, Zheng He, and Zhenfeng Shao. "User Identification across Asynchronous Mobility Trajectories." Sensors 19, no. 9 (May 7, 2019): 2102. http://dx.doi.org/10.3390/s19092102.

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With the popularity of location-based services and applications, a large amount of mobility data has been generated. Identification through mobile trajectory information, especially asynchronous trajectory data has raised great concerns in social security prevention and control. This paper advocates an identification resolution method based on the most frequently distributed TOP-N (the most frequently distributed N regions regarding user trajectories) regions regarding user trajectories. This method first finds TOP-N regions whose trajectory points are most frequently distributed to reduce the computational complexity. Based on this, we discuss three methods of trajectory similarity metrics for matching tracks belonging to the same user in two datasets. We conducted extensive experiments on two real GPS trajectory datasets GeoLife and Cabspotting and comprehensively discussed the experimental results. Experimentally, our method is substantially effective and efficiency for user identification.
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Bell, Daniel. "Intermodal Mobility Hubs and User Needs." Social Sciences 8, no. 2 (February 20, 2019): 65. http://dx.doi.org/10.3390/socsci8020065.

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Technological innovation in the mobility and transport sphere is still strongly aimed at vehicle- or infrastructure-based systems. Actual user needs in regard to accessibility and usability of the links between different transportation modes are usually addressed by standardized planning processes. In a row of four consecutive Austrian research projects, every element in the chain of intermodal routes was addressed, starting from the user-centered features of public transport stops in both urban and rural transport systems, to the planning tasks involved in providing demand-driven public transport. The current iteration focuses on establishing a typology of intermodal mobility hubs, including a differentiated view of the potential users of a multimodal transport system and their respective needs at the station.
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Lai, Kwong Yuen, Zahir Tari, and Peter Bertok. "Supporting User Mobility through Cache Relocation." Mobile Information Systems 1, no. 4 (2005): 275–307. http://dx.doi.org/10.1155/2005/513531.

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Traffic and access delay can be reduced in a mobile network by caching data objects at network nodes near the clients. Traditional caching techniques, however, are unsuitable in this environment because they do not account for the changing location of the users. To deal with this problem, cache relocation techniques can be applied to dynamically relocate data objects so they remain close to the moving clients. Existing relocation techniques rely heavily on path prediction. Unfortunately, the inaccuracy of path prediction can lead to high relocation overhead and poor response time. This paper presents an analytical study of the effects of client mobility on network cache performance. Two new cache relocation techniques are proposed to deal with the issue of poor path prediction and reduce the overhead of existing cache relocation schemes. The first technique, 2PR, compensates for poor path prediction by temporarily moving data objects to a common parent node prior to a handover. Objects are moved to the correct destination once the client's new location has been confirmed. The second technique, ROLP, reduces the traffic overhead associated with cache relocation by ensuring duplicate objects are not relocated and relocation of objects are performed only from the nearest node to the destination. Test results show that 2PR reduces the query delay experienced by mobile clients by 60 to 83% after handovers, while ROLP reduces the overhead of cache relocation by between 33 to 65% compared to existing schemes.
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Chen, Xihui, Jun Pang, and Ran Xue. "Constructing and Comparing User Mobility Profiles." ACM Transactions on the Web 8, no. 4 (November 6, 2014): 1–25. http://dx.doi.org/10.1145/2637483.

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Wressle, Ewa, and Kersti Samuelsson. "User Satisfaction with Mobility Assistive Devices." Scandinavian Journal of Occupational Therapy 11, no. 3 (April 2004): 143–50. http://dx.doi.org/10.1080/11038120410020728.

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Kim, Sehun, and Ki-Dong Lee. "Modelling user Mobility in Microcellular Systems." International Journal of Modelling and Simulation 21, no. 2 (January 2001): 132–37. http://dx.doi.org/10.1080/02286203.2001.11442195.

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Kravets, Robin, Casey Carter, and Luiz Magalhães. "A cooperative approach to user mobility." ACM SIGCOMM Computer Communication Review 31, no. 5 (October 2001): 57–69. http://dx.doi.org/10.1145/1037107.1037115.

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Dissertations / Theses on the topic "User mobility"

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Boc, Michaël Mathias. "Profile of mobility : user-centric networking." Paris 6, 2009. http://www.theses.fr/2009PA066355.

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Pamuluri, Harihara Reddy. "Predicting User Mobility using Deep Learning Methods." Thesis, Blekinge Tekniska Högskola, Institutionen för datavetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-19340.

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Context: The context of this thesis to predict user mobility using deep learning algorithms which can increase the quality of service for the users and reduce the cost of paging for telecom carriers. Objectives: This study first investigates to find the suitable deep learning algorithms that can be used to predict user mobility and then an experiment is performed with the chosen algorithms as a global model and individual model then evaluate the performance of algorithms. Methods: Firstly, a Literature review is used to find suitable deep learning algorithms and then based on finding an experiment is performed to evaluate the chosen deep learning algorithms. Results: Results from the literature review show that the RNN, LSTM, and variants of the LSTM are the suitable deep learning algorithms. The models are evaluated with metrics accuracy. The results from the experiment showed that the individual model gives better performance in predicting user mobility when compared to the global model. Conclusions: From the results obtained from the experiment, it can be concluded that the individual model is the technique of choice in predicting user mobility.
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Chama, Namusale Chibwe Maggie. "Impact of node mobility in user-centric routing." Doctoral thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/15783.

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Doutoramento em Engenharia Eletrotécnica -Telecomunicações
Recent paradigms in wireless communication architectures describe environments where nodes present a highly dynamic behavior (e.g., User Centric Networks). In such environments, routing is still performed based on the regular packet-switched behavior of store-and-forward. Albeit sufficient to compute at least an adequate path between a source and a destination, such routing behavior cannot adequately sustain the highly nomadic lifestyle that Internet users are today experiencing. This thesis aims to analyse the impact of the nodes’ mobility on routing scenarios. It also aims at the development of forwarding concepts that help in message forwarding across graphs where nodes exhibit human mobility patterns, as is the case of most of the user-centric wireless networks today. The first part of the work involved the analysis of the mobility impact on routing, and we found that node mobility significance can affect routing performance, and it depends on the link length, distance, and mobility patterns of nodes. The study of current mobility parameters showed that they capture mobility partially. The routing protocol robustness to node mobility depends on the routing metric sensitivity to node mobility. As such, mobility-aware routing metrics were devised to increase routing robustness to node mobility. Two categories of routing metrics proposed are the time-based and spatial correlation-based. For the validation of the metrics, several mobility models were used, which include the ones that mimic human mobility patterns. The metrics were implemented using the Network Simulator tool using two widely used multi-hop routing protocols of Optimized Link State Routing (OLSR) and Ad hoc On Demand Distance Vector (AODV). Using the proposed metrics, we reduced the path re-computation frequency compared to the benchmark metric. This means that more stable nodes were used to route data. The time-based routing metrics generally performed well across the different node mobility scenarios used. We also noted a variation on the performance of the metrics, including the benchmark metric, under different mobility models, due to the differences in the node mobility governing rules of the models.
Os paradigmas recentes de arquiteturas de comunicação sem fios consistem em ambientes onde os dispositivos apresentam um comportamento dinâmico (e.g., Redes Centradas no Utilizador). Nestes ambientes, o encaminhamento de dados ainda é realizado com base no comportamento de armazenamento e encaminhamento da comutação clássica de pacotes. Embora seja suficiente para calcular, pelo menos, um caminho adequado entre uma origem e um destino, tal comportamento de encaminhamento não é adequado nas redes móveis e sem fios atuais. Esta tese tem como objetivo analisar o impacto da mobilidade dos utilizadores sobre os diferentes cenários de encaminhamento. A tese também visa o desenvolvimento de conceitos de encaminhamento que ajudam na distribuição de dados através de grafos, nos quais os vértices exibem padrões de mobilidade humana, como é o caso hoje em dia para a maior parte das redes sem fios centradas no utilizador. A primeira parte desta tese envolveu a análise do impacto da mobilidade dos utilizadores no encaminhamento, com a análise de que a mobilidade, para afetar o desempenho do encaminhamento, depende do comprimento do caminho entre a origem e o destino, da distância entre os dispositivos, e dos diferentes padrões de mobilidade. O estudo dos atuais parâmetros de mobilidade mostrou que eles capturam parcialmente a mobilidade dos utilizadores. A robustez dos protocolos de encaminhamento depende da sensibilidade das métricas no que concerne a esta mobilidade. Assim, foram concebidas métricas de encaminhamento baseadas na mobilidade dos utilizadores para aumentar a robustez do encaminhamento em relação à mobilidade. As duas categorias de métricas de encaminhamento criadas foram métricas que têm como base o tempo e a correlação espacial. Para a validação das métricas foram utilizados vários modelos de mobilidade, incluindo os modelos que imitam padrões de mobilidade humana. As métricas foram implementadas utilizando a ferramenta Network Simulator e considerando dois protocolos de encaminhamento por múltiplos saltos amplamente utilizados, o Optimized Link State Routing (OLSR) e o Adhoc On Demand Distance Vector (AODV). Com a utilização das métricas propostas observa-se que a frequência de realização de novos cálculos de caminhos de comunicação foi reduzida em relação à métrica de referência. Isto significa que foram usados caminhos mais estáveis para encaminhar dados. As métricas de encaminhamento baseadas no tempo apresentam geralmente um bom desempenho nos diferentes cenários de mobilidade utilizados. Observou-se também uma variação no desempenho das métricas, incluindo a métrica de referência, nos diferentes modelos de mobilidade considerados, devido a diferenças nas regras de mobilidade dos utilizadores dos diferentes modelos.
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Tatar, Alexandru-Florin. "Predicting User-Centric Behavior : mobility and content popularity." Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066202/document.

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Comprendre le comportement des utilisateurs est fondamentale pour créer des systèmes de communication efficaces. Dévoiler les interactions complexes entre les utilisateurs dans le monde réel ou en ligne, déchiffrer leurs activité sur Internet, ou comprendre la mobilité humaine - toutes les formes des activités - peuvent avoir un impact direct sur la performance d'un réseau de communication. Mais l'observation du comportement de l'utilisateur n'est pas suffisant. Pour transformer l'information en connaissance utile, il faut cependant aller au-delà de l'observation et l' explication du passé et de créer des modèles permettant de prédire le comportement. Dans cette thèse, nous nous concentrons sur le cas des utilisateurs qui consomment du contenu dans leurs trajets quotidiens, en particulier lorsque la connectivité est faible ou intermittente. Nous considérons que les utilisateurs peuvent communiquer entre eux en utilisant l'infrastructure mais aussi directement en utilisant les communications opportunistes. Nous proposons de nouvelles perspectives sur la façon d'utiliser des information sur le comportement des utilisateurs dans la conception de solutions plus efficaces pour les communications mobiles opportunistes. En particulier, nous mettons en avant que le comportement des utilisateurs, à la fois en termes de consommation de contenu et les contacts entre les utilisateurs mobiles, peut être utilisé pour élaborer des stratégies dynamiques de réplication de données
Understanding user behavior is fundamental in the design of efficient communication systems. Unveiling the complex online and real-life interactions among users, deciphering online activity, or understanding user mobility patterns all forms of user activity have a direct impact on the performance of the network. But observing user behavior is not sufficient. To transform information in valuable knowledge, one needs however to make a step forward and go beyond observing and explaining the past to building models that will predict future behavior. In this thesis, we focus on the case of users consuming content on the move, especially when connectivity is poor or intermittent. We consider both traditional infrastructure-based communications and opportunistic device-to-device transfers between neighboring users. We offer new perspectives of how to use additional information about user behavior in the design of more efficient solutions for mobile opportunistic communications. In particular, we put forward the case that the collective user behavior, both in terms of content consumption and contacts between mobile users, can be used to build dynamic data replication strategies
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YNGEN, FREDRIK. "A user study on electric shared mobility for residents." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-299783.

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This study aims at developing better understanding of the requirements on an offering of electric Shared Mobility for Residents (eSMfR) in order to make it attractive from the resident’s point of view. The study has been based on interaction with randomly recruited residents in a couple of Swedish communities. The interaction has been carried out during field days where discussions on transportation requirements, car ownership and shared mobility as an option, has been carried out and documented. The residents were approached as they walked by an exhibition with a set of boards, designed to facilitate a discussion on travel and transportation needs, means of travel and transportation and the pros and cons of ownership of private passenger cars versus a shared mobility service. The study has been conducted through a participatory and practice design orientation in a Living Lab ecosystem. Tools such as personas and customer journeys have been used. Results are presented according to sub questions of the research question. “What are key design aspects to incentivize the usage of eSMfR?” Followingly, the study has concluded in five insights: There is a lacking awareness of, and relationship to, shared mobility. Change in behavior needs to happen on a collective level. Cost is a key driver and perceived cost must be attractive. Convenience is the second key driver; environment is a benefit. Ease of use is a key part of total convenience. Based on the generated insights, a set of key design recommendations has been proposed in order to overcome negative perceptions and satisfy user requirements. A valid next step would be to conduct a quantitative study to verify the relevance of the key insights and the efficiency of the proposed design recommendations. After quantitative verification has been carried out, a scalable live pilot, designed according to the verified findings, should be launched to get live user data in order to fine tune the concept before scaling up.
Denna studie avser att förbättra förståelsen för de krav som ställs på en elektrifierad delad mobilitetstjänst för boende (electric Shared Mobility for Residents (eSMfR)), för att göra den attraktiv ur ett användarperspektiv. Studien har genomförts genom dialog med slumpvis rekryterade boenden i två svenska bostadsområden. Dialogen genomfördes under fältdagar där transportbehov, bilägande och bildelning som ett alternativ diskuterades och dokumenterades. De boende i området bjöds in till dialogen då de passerade en utställning med ett antal planscher som utformats för att stödja diskussionerna om rese- och transportbehov, färdmedel för resor och transporter och för- och nackdelar med privat bilägande i förhållande till en delad mobilitetstjänst. Studien har genomförts med en deltagande och praktiserande design orientering i ett Living Lab ekosystem. Verktyg som personas och kundresor har använts. Resultat är presenterade enligt delfrågor av forskningsfrågan: ”Vilka essentiella aspekter inom design kan skapa incitament för användandet av eSMfR?”. Studien har sedan utmynnat i fem insikter: Det saknas medvetenhet om, och relation till, delad mobilitet. Förändring av beteenden måste ske på kollektiv nivå. Kostnad är en väsentlig drivkraft och den upplevda kostnaden måste vara attraktiv. Bekvämlighet är ytterligare en väsentlig drivkraft, miljövänlighet är en bonus. Användarvänlighet är en väsentlig del av bekvämlighet. Baserat på de genererade insikterna föreslås ett antal design-rekommendationer för att övervinna negativa uppfattningar och tillfredsställa användarnas behov. Ett adekvat nästa steg skulle vara att genomföra en kvantitativ studie för att verifiera relevansen av de genererade insikterna och effektiviteten av de föreslagna design-rekommendationerna. Efter att den kvantitativa verifieringen genomförts kan en skalbar pilot, designad enligt de verifierade resultaten, lanseras för att ge realtidsdata för att fintrimma konceptet.
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Zhou, Yun. "Context-based Innovative Mobile User Interfaces." Phd thesis, Ecole Centrale de Lyon, 2012. http://tel.archives-ouvertes.fr/tel-00813532.

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Avec le développement de différents capteurs et des dispositifs, l'informatique ne se limite plus à la mode bureautique. Cependant, l'interface utilisateur traditionnelle, utilisée sur l'ordinateur de bureau, n'est plus approprié pour l'informatique ubiquitaire. La complexité de l'environnement mobile demande la conception d'interfaces dédiées impliquant des techniques d'entrée et la sortie qui contiennent les nouvelles caractéristiques émergentes au-delà des techniques traditionnelles. L'une des solutions possibles pour permettre l'interaction omniprésente soit le nomadisme, soit la mobilité. Nous proposons trois interfaces liées à ces deux solutions: L'interface fixé dan l'environnement (abréviation de IEI en anglais), interface dépendante de l'environnement (EDI) et Interface Indépendante de l'environnement (EII). Tout d'abord, nous présentons globalement notre approche sur la conception de ces trois interfaces innovantes (IEI, EDI et EII), leurs configurations portées (dispositif d'affichage portée sur les lunettes plus caméra et dispositif d'affichage pico-projecteur plus caméra), des exemples réels d'utilisation et une évaluation préliminaire des techniques d'entrée de sélection pour prouver la faisabilité de nos prototypes. Par la suite, nous proposons sur les dispositifs portées, et seule les EDI et les EII seraient étudié plus en détail. Afin de concrétiser l'EDI et l'EII, nous proposons un continuum allant de l'interface physique, l'interface mixte physique-numérique, jusqu'à l'interface totalement numérique. Basé sur l'interface physique, nous proposons le système MobilePaperAccess qui sur le dispositif d'affichage portée sur les lunettes plus caméra permettant l'accès à l'information numérique à partir d'une interface imprimé du papier. Ce système est conçu pour valider nos concepts de l'EDI et de l'EII. Les deux types d'interfaces (EDI et EII) et trois techniques d'entrée (doigt, masque et carnet) ont été évaluées par les méthodes quantitatives et qualitatives avec ce système. Basé sur l'interface numérique projetée multi-échelle, le système PlayAllAround est sur dispositif d'affichage pico-projecteur plus caméra, et il pouvoir fournir un affichage à différentes tailles, à la plus petite, individuelle et portée, à la plus grande, partageable et publique. Pour la conception de ce système, nous proposons une décomposition de l'interface basée sur une de cellule de référence de taille fixé pourrait la mise à l'échelle de l'interface en fonctionne de la taille de projection. Le geste de sélection sur un vol et l'interface multi-échelle ont été évalués avec ce système. Les résultats de nos expériences ont montré que PlayAllAround fonctionne bien avec le geste de sélection sur un vol et l'interface multi-échelle. Pour aller plus loin, nous explorons les gestes de la main, y compris le geste stationnaire, le geste de pincement et le geste de fermeture du poing. Nous employons le geste de pincement et le geste de fermeture du poing comme entrée pour pointer, l'action de glisser-déposer et la action de tracer. Afin de satisfaire aux exigences de l'interaction dans la vie quotidienne, nous étudions comment l'utilisateur peut interagir avec ces gestes à l'arrêt ou en marchant. Nous comparons les interactions du geste de sélection sur un vol et geste de pincement dans trois situations que debout, assis et en marchant. En outre, l'évaluation de l'interface projetée, ainsi que la satisfaction sur le fonctionnement de la configuration porté sur la tête a été faite et discutée. Enfin, le long du continuum, nous continuons à étudier sur l'interface mixte par un dispositif pico-projecteur plus caméra dans le but de concrétiser les concepts de l'EDI et de l'EII. L'interface mixte contient une partie physique basée sur des marqueurs d'ARToolkit et une partie numérique projetée. Comme l'écran de projection est une méthode alternative pour afficher plus d'information sans aucun support physique, l'interface mixte a la capacité de contenir davantage d'informations ainsi que de fournir plus de choix dynamiques par rapport à l'interface physique seul. En conclusion, dans cette thèse, nous avons étudié de manière théorique, la conception innovante, et nous avons proposons les prototypes concrètes et les avons évalués par les deux études quantitatives et qualitatives avec des utilisateurs. Plus généralement, ce travail est une étude multi-facette sur les interfaces portées innovantes, ainsi que les techniques avancées d'entrée et de sortie, ce qui ouvre des prospectives pour futures recherches sur les interfaces portées.
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Zhang, Zelun. "User mobility detection using foot force sensors and mobile phone GPS." Thesis, Queen Mary, University of London, 2014. http://qmro.qmul.ac.uk/xmlui/handle/123456789/9116.

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A user (or human) mobility context is defined as a type of user context that describes a type of whole body posture (e.g., standing versus sitting) and/or a type of travel or transportation mode (e.g., walking, cycling, travel by bus, etc). Such a context can be derived from low-level sensor data and spatial contexts, including location coordinates, 3D-orientation, direction (with respect to magnetic north), velocity and acceleration. Different value-added services can be adapted to users’ mobility contexts such as assessing how eco-friendly our travel is, and adapting travel information services such as maps to different transportation modes. Current sensor-based methods for user mobility detection have several key limitations: narrow range of recognition, coarse user mobility recognition capability, and low recognition accuracy. In this thesis, a new Foot-Force and GPS (FF+GPS) sensor method is proposed to overcome these challenges that leverages a set of wearable FF sensors in combination with mobile phone GPS. The novelty of this approach is that it provides a more comprehensive recognition capability in terms of reliably recognising various fine-grained human postures and transportation modes. In addition, by comparing the new FF+GPS method with both an accelerometer (ACC) method (62% accuracy) and an ACC+GPS based method (70% accuracy) as baseline methods, it obtains a higher accuracy (90%) with less computational complexity, when tested on a dataset obtained from ten individuals. In addition, the new FF+GPS method has been further extended and evaluated. More specifically, the trade-off between the computation and resources needed to support lower versus higher number of features and sensors has been investigated. The improved FF+GPS method reduced the number of classification features from 31 to 12, reduced the number of FF sensors from 8 to 4, and reduced the use of GPS in mobility activity recognition.
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Mastrovito, Mirco. "User reputation and data quality in a crowdsensing platform for impaired mobility." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.

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This dissertation project aims to deal with all these problems by proposing a platform to support people with reduced mobility. There are systems that deal with the problem of urban accessibility through sets of data provided by certified authorities. Such systems have the limit of not being updated in real time and do not extend the possibility of adding information to all participants. From this comes the idea of creating a new application. The application purpose is to collect information on urban accessibility from all users and guarantee, by applying the concept of crowd-sensing, a high level of data trustworthiness. To be effective in its goal, the application must be easy to use and accessible to everyone at anytime and anywhere. For this reason, the software will be developed around two must-haves that form the main basis for today's communication: Internet and smartphones.
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Sulaiman, Norrozila. "Performance evaluation of user mobility on QoS classes in a 3G network." Thesis, University of Newcastle Upon Tyne, 2008. http://hdl.handle.net/10443/525.

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The popularity of IP services is increasing and the demand for managing traffic with different QoS classes has become more challenging. The stability of the system is affected by the rate of voice traffic. Mobility allows users to be connected at all time where handover may occur as it is not always possible to be connected to the same base station. Mobility and handover cause severe interference, which affects overall throughput and capacity of the system. The system requires greater capacity with more coverage area. This study deals with the impact of user mobility on voice quality in IP based application in a 3G Network. The aim is to improve the system performance in mixed traffic environment. A mathematical model is used to analyse the impact of using different type of coder on packet end-to-end delay and packet loss. The simulation results indicate that types of coder affect the system performance. Application of scheduling based on weight and load balancing technique can improve the system performance. The deployment of scheduling based on weight and a load balancing technique have been investigated to reduce the end-to-end delay and to improve overall performance in mixed traffic environment. The results under different conditions are analysed and it is found that by applying scheduling scheme, the quality of voice communication can be improved. In addition, load balancing technique can be used to improve the performance of the system. Apart from the decrease in delay, the technique can increase the capacity of the system and the overall stability of the system can be further improved. Finally, network security is another important aspect of network administration. Security policies have to be defined and implemented so that critical sections of the network are protected against unwarranted traffic or unauthorized personnel. The impact of implementing IPSec has been tested for voice communication over IP in a 3G network. Implementing the security protocol does not significantly degrade the performance of the system.
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Karlsson, Hanna, and Hanna Tullock. "User perceptions of belt in seat installations : A comfort and mobility study." Thesis, Högskolan Väst, Avdelningen för maskinteknik och naturvetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-10975.

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This thesis' work has been conducted at and made possible by Autoliv Sverige AB in Vårgårda. The aim of this thesis is to study how the occupant experience of the belt changes when it is moved from a traditional installation point in the car's B-pillar, to the seat. This shall be studied in terms of how the perceived comfort is influenced by a belt in seat in an upright and a reclined seat back position of 20 and 45 degrees, for different sizes of occupants. Also how the ability to reach a belt in seat is affected by the size and mobility of the occupant. Based on this new knowledge, an optimal outlet position for a belt in seat shall be proposed, from a comfort perspective. The work has used a cross-sectional research approach to achieve its purpose. Through the cross-sectional approach, several different qualitative and quantitative methods have been used. Initially, a literature study where subjects relevant to the forthcoming study was studied. Meanwhile, a competitive analysis of existing belt in seat installations in new cars available on the market was planned and carried out. In the main element of this work, a two-part comfort and mobility study with a belt in seat was performed. The study combined the methods interview, survey and observation. Through the interview, qualitative questions were asked as a complement to the quantitative responses given by the test subjects on scales in the survey. Observations were used to observe the subjects' behavior and difficulties regarding the belt in seat. A major limitation of the results of the study is the deficient distribution of sitting heights and genders in the group of test subjects, which founded a certain bias in the results. This has been the reason why it has not been possible to draw any certain conclusions from the results, however, some trends have been seen. The comfort study revealed several different assessments of the belt that contributed to discomfort, including the perception of the belt being too close to the neck or too far out on the shoulder. Additionally, the discomfort significantly impaired when the seat was reclined to the relaxed state. The mobility study showed that more subjects felt limited by their own bodies in the movement than by the belt. In addition did the reversed belt geometry create large discomfort issues at the neck. An important conclusion of this thesis is that the seat's design is as important to the customer experience of discomfort of the belt as the positioning of the outlet. It has also become clear that the accessibility of a belt in seat is strongly limited, as it was tested in this study.
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Books on the topic "User mobility"

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Kelly, Dan. Program for the transportation of the mobility disadvantaged in rural Manitoba: A study of user needs and benefits. [Winnipeg]: Manitoba Dept. of Highways and Transportation, 1988.

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Jukka, Springare, and SpringerLink (Online service), eds. Haptics: Perception, Devices, Mobility, and Communication: International Conference, EuroHaptics 2012, Tampere, Finland, June 13-15, 2012 Proceedings, Part II. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012.

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Jukka, Springare, and SpringerLink (Online service), eds. Haptics: Perception, Devices, Mobility, and Communication: International Conference, EuroHaptics 2012, Tampere, Finland, June 13-15, 2012. Proceedings, Part I. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012.

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Zegeer, Charles V. Pedestrian facilities users guide: Providing safety and mobility. McLean, Virginia: U.S. Dept. of Transportation, Federal Highway Administration, Research, Development and Technology, Turner-Fairbank Highway Research Center, 2002.

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Newbold, David. My Mobility. Venice: Edizioni Ca' Foscari, 2018. http://dx.doi.org/10.30687/978-88-6969-300-7.

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To mark 150 years of being ‘Open to the World’ Ca’ Foscari invited students to write about their mobility experiences abroad, and to focus on a learning experience – not necessarily a formal one. More than a hundred students participated. This volume brings together the winning accounts and all the short and long listed entries. As well as illuminating the significance of the mobility experience to students’ personal development and celebrating fundamental human values of tolerance, friendship, and hospitality, they reveal a great well of creative resources in the use of English as a lingua franca.
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Atkinson, Beth. Accessible homes: Mobility for wheelchair users within private dwellings. [London]: Greenwich Housing Disability Team, 2002.

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I know someone who uses a wheelchair. Oxford: Raintree, 2012.

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Nuvolati, Giampaolo. Popolazioni in movimento, città in trasformazione: Abitanti, pendolari, city users, uomini d'affari e flâneurs. Bologna: Il mulino, 2002.

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FEDERAL AVIATION ADMINISTRATION. Guide specification for lifts used to board airline passengers with mobility impairments. Washington, D.C. (800 Independence Ave., S.W. Washington 20591): U.S. Dept. of Transportation, Federal Aviation Administration, 1996.

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Affluence, mobility, and second home ownership. New York, NY: Routledge, 2010.

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Book chapters on the topic "User mobility"

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Sofia, Rute, Tiago Condeixa, and Susana Sargento. "Mobility Estimation in the Context of Distributed Mobility Management." In User-Centric Networking, 289–310. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-05218-2_14.

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Brown, Martin G. "Supporting User Mobility." In Mobile Communications, 69–77. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-0-387-34980-0_8.

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Peters, Sebastian, Denis Pozo Pardo, and Qing Zhou. "Mobility Management in ULOOP." In User-Centric Networking, 311–25. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-05218-2_15.

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Sivrikaya, Fikret, Stefano Salsano, Marco Bonola, and Marco Trenca. "Mobility Support in User-Centric Networks." In User-Centric Networking, 269–88. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-05218-2_13.

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Shaheen, Susan, Adam Cohen, and Elliot Martin. "Smartphone App Evolution and Early Understanding from a Multimodal App User Survey." In Disrupting Mobility, 149–64. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-51602-8_10.

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Alegre Valls, Lluís. "Mobility Planning to Improve Air Quality." In Towards User-Centric Transport in Europe, 121–33. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-99756-8_9.

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Lacey, Gerard, Nikos Katevas, and Wolfram Humann. "User Interfaces for Robot Mobility Aids." In Field and Service Robotics, 533–39. London: Springer London, 1998. http://dx.doi.org/10.1007/978-1-4471-1273-0_80.

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Vanini, Salvatore, and Anna Förster. "Architectural Solutions for End-User Mobility." In Mobile Ad Hoc Networking, 154–90. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118511305.ch5.

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Vijayakumar, Priya, Stefan Schmid, Simon Schütz, and Marcus Brunner. "Application-Independent Session Mobility Between User Terminals." In Mobility Aware Technologies and Applications, 305–15. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11569510_29.

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Tatum, K., T. Cekic, A. Landwehr, J. Noennig, J. Knieling, and B. Schroeter. "Co-creation of Local Mobility Solutions: Lessons from the Mobility Lab in Hamburg-Altona." In Towards User-Centric Transport in Europe 2, 16–27. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-38028-1_2.

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Conference papers on the topic "User mobility"

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Liu, Lu, Junyao Guo, Sihai Zhang, and Jinkang Zhu. "Similar User Assisted Mobility Prediction." In 2019 11th International Conference on Wireless Communications and Signal Processing (WCSP). IEEE, 2019. http://dx.doi.org/10.1109/wcsp.2019.8928002.

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al-Azzawi, Ali. ""User Experience in Arabia: The Business Case for User-Centred Design and Usability Engineering"." In Mobility, Intelligent Networks and Smart Societies. BCS Learning & Development, 2015. http://dx.doi.org/10.14236/ewic/bcsme2014.13.

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La, Chi-Anh, and Pietro Michiardi. "Characterizing user mobility in second life." In the first workshop. New York, New York, USA: ACM Press, 2008. http://dx.doi.org/10.1145/1397735.1397753.

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Park, Chulho. "Multi-User Multiplexing for IP Mobility." In 2013 International Conference on Information Science and Applications (ICISA). IEEE, 2013. http://dx.doi.org/10.1109/icisa.2013.6579360.

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Tuncer, Hasan, Yoshihiro Nozaki, and Nirmala Shenoy. "Virtual domains for seamless user mobility." In the 9th ACM international symposium. New York, New York, USA: ACM Press, 2011. http://dx.doi.org/10.1145/2069131.2069153.

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Barth, Dominique, Samir Bellahsene, and Leïla Kloul. "Mobility Prediction Using Mobile User Profiles." In Simulation of Computer and Telecommunication Systems (MASCOTS). IEEE, 2011. http://dx.doi.org/10.1109/mascots.2011.57.

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De Vogeleer, Karel, Selim Ickin, David Erman, and Markus Fiedler. "PERIMETER: A user-centric mobility framework." In 2010 IEEE 35th Conference on Local Computer Networks (LCN 2010). IEEE, 2010. http://dx.doi.org/10.1109/lcn.2010.5735783.

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Gharam, Maroua, and Noureddine Boudriga. "User Mobility under LTE based VPN." In MSWiM '16: 19th ACM International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems. New York, NY, USA: ACM, 2016. http://dx.doi.org/10.1145/2989250.2989271.

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Wang, Weihong, Yuhui Cao, Da Li, and Zheng Qin. "Markov-Based Hierarchical User Mobility Model." In 2007 Third International Conference on Wireless and Mobile Communications (ICWMC'07). IEEE, 2007. http://dx.doi.org/10.1109/icwmc.2007.52.

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Schulzrinne, Henning, Andrea G. Forte, and Sangho Shin. "User mobility in IEEE 802.11 networks." In first ACM/IEEE international workshop. New York, New York, USA: ACM Press, 2006. http://dx.doi.org/10.1145/1186699.1186705.

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Reports on the topic "User mobility"

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Glaeser, Edward, Caitlin Gorback, and James Poterba. How Regressive are Mobility-Related User Fees and Gasoline Taxes? Cambridge, MA: National Bureau of Economic Research, December 2022. http://dx.doi.org/10.3386/w30746.

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Mallon, Lawrence G., and Jens Pohl. Strategic Mobility 21 Collaborative Toolkit System Documentation & User Manual: The TRANSWAY Toolset for Adaptive Planning. Fort Belvoir, VA: Defense Technical Information Center, November 2006. http://dx.doi.org/10.21236/ada461459.

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Rannenberg, Kai, Sebastian Pape, Frédéric Tronnier, and Sascha Löbner. Study on the Technical Evaluation of De-Identification Procedures for Personal Data in the Automotive Sector. Universitätsbibliothek Johann Christian Senckenberg, October 2021. http://dx.doi.org/10.21248/gups.63413.

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The aim of this study was to identify and evaluate different de-identification techniques that may be used in several mobility-related use cases. To do so, four use cases have been defined in accordance with a project partner that focused on the legal aspects of this project, as well as with the VDA/FAT working group. Each use case aims to create different legal and technical issues with regards to the data and information that are to be gathered, used and transferred in the specific scenario. Use cases should therefore differ in the type and frequency of data that is gathered as well as the level of privacy and the speed of computation that is needed for the data. Upon identifying use cases, a systematic literature review has been performed to identify suitable de-identification techniques to provide data privacy. Additionally, external databases have been considered as data that is expected to be anonymous might be reidentified through the combination of existing data with such external data. For each case, requirements and possible attack scenarios were created to illustrate where exactly privacy-related issues could occur and how exactly such issues could impact data subjects, data processors or data controllers. Suitable de-identification techniques should be able to withstand these attack scenarios. Based on a series of additional criteria, de-identification techniques are then analyzed for each use case. Possible solutions are then discussed individually in chapters 6.1 - 6.2. It is evident that no one-size-fits-all approach to protect privacy in the mobility domain exists. While all techniques that are analyzed in detail in this report, e.g., homomorphic encryption, differential privacy, secure multiparty computation and federated learning, are able to successfully protect user privacy in certain instances, their overall effectiveness differs depending on the specifics of each use case.
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Shoop, Sally, Clifford Witte, Sebastian Karwaczynski, Clifton Ellis, Eoghan Matthews, Steven Bishel, Barry Bomier, et al. Improving winter traction for vehicles in northern operations. Engineer Research and Development Center (U.S.), December 2021. http://dx.doi.org/10.21079/11681/42524.

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As part of the campaign to increase readiness in northern regions, a near commercial off-the-shelf (COTS) solution was identified for the High Mobility Multipurpose Wheeled Vehicle (HMMWV); and used to assess the suitability of commercially available winter tires for operational deployment. Initial performance evaluations conducted during the winters of 2020 and 2021 demonstrated and quantified significant improvements to traction and handling on a variety of winter surfaces. User feedback from United States Army Alaska (USARAK) Soldiers confirmed these results in an operational environment. Results of this study provide new winter tire specifications for the Army and justify the procurement of a HMMWV winter tire for improved safety and capability for US Soldier and vehicle fleet needs. The data and Soldier evaluations support attaining a National Stock Number (NSN) and provide data to develop models of winter vehicle performance that include the impact of winter tires and chains. This work also paves the way for future development and procurement of winter tires for vehicles where COTS solutions are unavailable. The motivation is to provide Soldiers with state-of-the-art winter tires to increase safety, capability, and operational compatibility with North Atlantic Treaty Organization (NATO) partners in the European Theater of Operations, and mobility superiority in all environments.
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Keith A. Daum and Sandra L. Fox. Data for Users of Handheld Ion Mobility Spectrometers. Office of Scientific and Technical Information (OSTI), May 2008. http://dx.doi.org/10.2172/940050.

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Appleyard, Bruce, Jonathan Stanton, and Chris Allen. Toward a Guide for Smart Mobility Corridors: Frameworks and Tools for Measuring, Understanding, and Realizing Transportation Land Use Coordination. Mineta Transportation Institue, December 2020. http://dx.doi.org/10.31979/mti.2020.1805.

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The coordination of transportation and land use (also known as “smart growth”) has been a long-standing goal for planning and engineering professionals, but to this day it remains an elusive concept to realize. Leaving us with this central question -- how can we best achieve transportation and land use coordination at the corridor level? In response, this report provides a review of literature and practice related to sustainability, livability, and equity (SLE) with a focus on corridor-level planning. Using Caltrans’ Corridor Planning Process Guide and Smart Mobility Framework as guideposts, this report also reviews various principles, performance measures, and place typology frameworks, along with current mapping and planning support tools (PSTs). The aim being to serve as a guidebook that agency staff can use for reference, synergizing planning insights from various data sources that had not previously been brought together in a practical frame. With this knowledge and understanding, a key section provides a discussion of tools and metrics and how they can be used in corridor planning. For illustration purposes, this report uses the Smart Mobility Calculator (https://smartmobilitycalculator. netlify.app/), a novel online tool designed to make key data easily available for all stakeholders to make better decisions. For more information on this tool, see https://transweb.sjsu.edu/research/1899-Smart-Growth-Equity-Framework-Tool. The Smart Mobility Calculator is unique in that it incorporates statewide datasets on urban quality and livability which are then communicated through a straightforward visualization planners can readily use. Core sections of this report cover the framework and concepts upon which the Smart Mobility Calculator is built and provides examples of its functionality and implementation capabilities. The Calculator is designed to complement policies to help a variety of agencies (MPOs, DOTs, and local land use authorities) achieve coordination and balance between transportation and land use at the corridor level.
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Bodie, Mark, Michael Parker, Alexander Stott, and Bruce Elder. Snow-covered obstacles’ effect on vehicle mobility. Engineer Research and Development Center (U.S.), November 2020. http://dx.doi.org/10.21079/11681/38839.

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The Mobility in Complex Environments project used unmanned aerial systems (UAS) to identify obstacles and to provide path planning in forward operational locations. The UAS were equipped with remote-sensing devices, such as photogrammetry and lidar, to identify obstacles. The path-planning algorithms incorporated the detected obstacles to then identify the fastest and safest vehicle routes. Future algorithms should incorporate vehicle characteristics as each type of vehicle will perform differently over a given obstacle, resulting in distinctive optimal paths. This study explored the effect of snow-covered obstacles on dynamic vehicle response. Vehicle tests used an instrumented HMMWV (high mobility multipurpose wheeled vehicle) driven over obstacles with and without snow cover. Tests showed a 45% reduction in normal force variation and a 43% reduction in body acceleration associated with a 14.5 cm snow cover. To predict vehicle body acceleration and normal force response, we developed two quarter-car models: rigid terrain and deformable snow terrain quarter-car models. The simple quarter models provided reasonable agreement with the vehicle test data. We also used the models to analyze the effects of vehicle parameters, such as ground pressure, to understand the effect of snow cover on vehicle response.
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Lewis, Sherman, Emilio Grande, and Ralph Robinson. The Mismeasurement of Mobility for Walkable Neighborhoods. Mineta Transportation Institute, November 2020. http://dx.doi.org/10.31979/mti.2020.2060.

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The major US household travel surveys do not ask the right questions to understand mobility in Walkable Neighborhoods. Yet few subjects can be more important for sustainability and real economic growth based on all things of value, including sustainability, affordability, and quality of life. Walkable Neighborhoods are a system of land use, transportation, and transportation pricing. They are areas with attractive walking distances of residential and local business land uses of sufficient density to support enough business and transit, with mobility comparable to suburbia and without owning an auto. Mobility is defined as the travel time typically spent to reach destinations outside the home, not trips among other destinations that are not related to the home base. A home round trip returns home the same day, a way of defining routine trips based on the home location. Trip times and purposes, taken together, constitute travel time budgets and add up to total travel time in the course of a day. Furthermore, for Walkable Neighborhoods, the analysis focuses on the trips most important for daily mobility. Mismeasurement consists of including trips that are not real trips to destinations outside the home, totaling 48 percent of trips. It includes purposes that are not short trips functional for walk times and mixing of different trips into single purposes, resulting in even less useful data. The surveys do not separate home round trips from other major trip types such as work round trips and overnight trips. The major household surveys collect vast amounts of information without insight into the data needed for neighborhood sustainability. The methodology of statistics gets in the way of using statistics for the deeper insights we need. Household travel surveys need to be reframed to provide the information needed to understand and improve Walkable Neighborhoods. This research makes progress on the issue, but mismeasurement prevents a better understanding of the issue.
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Hannum, D. W. Characteristics of select glass tube preconcentrators used with an ion mobility spectrometer. Office of Scientific and Technical Information (OSTI), April 1989. http://dx.doi.org/10.2172/6214730.

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Slattery, Kevin, and Eliana Fu. Unsettled Issues in Additive Manufacturing and Improved Sustainability in the Mobility Industry. SAE International, July 2021. http://dx.doi.org/10.4271/epr2021015.

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Additive manufacturing (AM), also known as “3D printing,” is often touted as a sustainable technology, especially for metal components, since it produces either net or near-net shapes versus traditionally machined pieces from larger mill products. While traditional machining from mill products is often the case in aerospace, most of the metal parts used in the world are made from flat-rolled metal and are quite efficient in utilization. Additionally, some aspects of the AM value chain are often not accounted for when determining sustainability. Unsettled Issues in Additive Manufacturing and Improved Sustainability in the Mobility Industry uses a set of scenarios to compare the sustainability of parts made using additive and conventional technologies for both the present and future (2040) states of manufacturing.
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