Academic literature on the topic 'D2D proximity services'
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Journal articles on the topic "D2D proximity services"
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Kim, Donghyeon, and In-Ho Lee. "Deep Learning-Based Power Control Scheme for Perfect Fairness in Device-to-Device Communication Systems." Electronics 9, no. 10 (October 1, 2020): 1606. http://dx.doi.org/10.3390/electronics9101606.
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The proximity-based device-to-device (D2D) communication allows for internet of things, public safety, and data offloading services. Because of these advantages, D2D communication has been applied to wireless communication networks. In wireless networks using D2D communication, there are challenging problems of the data rate shortage and coverage limitation due to co-channel interference in the proximity communication. To resolve the problems, transmit power control schemes that are based on deep learning have been presented in network-assisted D2D communication systems. The power control schemes have focused on enhancing spectral efficiency and energy efficiency in the presence of interference. However, the data-rate fairness performance may be a key performance metric in D2D communications, because devices in proximity can expect fair quality of service in the system. Hence, in this paper, a transmit power control scheme using a deep-learning algorithm based on convolutional neural network (CNN) is proposed to consider the data-rate fairness performance in network-assisted D2D communication systems, where the wireless channels are modelled by path loss and Nakagami fading. In the proposed scheme, the batch normalization (BN) scheme is introduced in order to further enhance the spectral efficiency of the conventional deep-learning transmit power control scheme. In addition, a loss function for the deep-learning optimization is defined in order to consider both the data-rate fairness and spectral efficiency. Through simulation, we show that the proposed scheme can achieve extremely high fairness performance while improving the spectral efficiency of the conventional schemes. It is also shown that the improvement in the fairness and spectral efficiency is achieved for different Nakagami fading conditions and sizes of area containing the devices.
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Adnan, Mohd Hirzi, and Zuriati Ahmad Zukarnain. "Device-To-Device Communication in 5G Environment: Issues, Solutions, and Challenges." Symmetry 12, no. 11 (October 24, 2020): 1762. http://dx.doi.org/10.3390/sym12111762.
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Device-to-device (D2D) communication produces a new dimension in the mobile environment, easing the data exchange process between physically neighboring devices. To achieve an effective utilization of available resources, reduce latency, improve data rates, and increase system capacity, D2D communication utilizes nearby communicating devices. The mobile operator’s action to collect the short-range communications for maintenance of the proximity-based services and improve the performance of networks drives the development of D2D. This paper presents an extensive review of proposed solutions aiming to enhance the security in D2D communication. The main goal of the research is to present an extensive review of the recent advances in various D2D domains such as the discovery process, mode selection schemes, interference management, power control techniques and finally the mode selection for D2D applications for 5G technologies. Additionally, we highlight the open problems and identify the challenges with regard to the D2D communication problem.
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Sim, Gek Hong, Adrian Loch, Arash Asadi, Vincenzo Mancuso, and Joerg Widmer. "5G Millimeter-Wave and D2D Symbiosis: 60 GHz for Proximity-Based Services." IEEE Wireless Communications 24, no. 4 (August 2017): 140–45. http://dx.doi.org/10.1109/mwc.2017.1600098.
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Lai, Wei Kuang, Chin-Shiuh Shieh, Fu-Sheng Chou, Chia-Yu Hsu, and Meng-Han Shen. "Handover Management for D2D Communication in 5G Networks." Applied Sciences 10, no. 12 (June 26, 2020): 4409. http://dx.doi.org/10.3390/app10124409.
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This study addresses the handover management issue for Device-to-Device communication in fifth-generation (5G) networks. The Third Generation Partnership Project (3GPP) drafted a standard for proximity services (ProSe), also named device-to-device (D2D) communication, which is a promising technology in offering higher throughput and lower latency services to end users. Handover is an essential issue in wireless mobile networks due to the mobility of user equipment (UE). Specifically, we need to transfer an ongoing connection from an old E-UTRAN Node B (eNB) to a new one, so that the UE can retain its connectivity. In the data plane, both parties of a D2D pair can communicate directly with each other without the involvement of the base station. However, in the control plane, devices must be connected to the eNB for tasks such as power control and resource allocation. In the current standard of handover scheme, the number of unnecessary handovers would be increased by the effect of shadowing fading on two devices. More important, the handover mechanism for D2D pairs is not standardized yet. LTE-A only considers the handover procedure of a single user. Therefore, when a D2D pair moves across cell boundaries, the control channels of the two UEs may connect to different base stations and result in increased latency due to the exchange of D2D related control messages. Hence, we propose a handover management scheme for D2D communication to let both parties of a D2D pair handover to the same destination eNB at the same time. By doing so, the number of unnecessary handovers, as well as the handover latency, can be reduced. In the proposed method, we predict the destination eNB of D2D users based on their movements and the received signal characteristics. Subsequently, we make a handover decision for each D2D pair by jointly factoring in the signal quality and connection stability. Expected improvement can be attained, as revealed in the simulation. Unnecessary handover can be avoided. Consequently, both UEs of a D2D pair reside in the same cell and, therefore, result in increased throughput and decreased delay.
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Ombongi, Filbert Onkundi, Heywood Ouma Absaloms, and Philip Langat Kibet. "Resource Allocation in Millimeter-Wave Device-to-Device Networks." Mobile Information Systems 2019 (December 26, 2019): 1–16. http://dx.doi.org/10.1155/2019/5051360.
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Recently, the mobile wireless communication has seen explosive growth in data traffic which might not be supported by the current Fourth Generation (4G) networks. The Fifth Generation (5G) networks will overcome this challenge by exploiting a higher spectrum available in millimeter-wave (mmwave) band to improve network throughput. The integration of the millimeter-wave communication with device-to-device communication can be an enabling 5G scheme in providing bandwidth-intensive proximity-based services such as video sharing, live streaming of data, and socially aware networking. Furthermore, the current cellular network traffic can also be offloaded by the D2D user devices thereby reducing loading at Base Stations (BSs), which would then increase the system capacity. However, the mmwave D2D communication is associated with numerous challenges, which include signal blockages, user mobility, high-computational complexity resource allocation algorithms, and increase in interuser interference for dense D2D user scenario. The paper presents review of existing channel and power allocation approaches and mathematical resource optimization solution techniques. In addition, the paper discusses the challenges hindering the realization of an effective allocation scheme in mmwave D2D communication and gives open research issues for further study.
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Wang, Weiguang, Hui Li, Wenjie Zhang, and Shanlin Wei. "Energy Efficiency for Data Offloading in D2D Cooperative Caching Networks." Wireless Communications and Mobile Computing 2020 (June 27, 2020): 1–11. http://dx.doi.org/10.1155/2020/2730478.
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D2D communication improves the cellular network performance by using proximity-based services between adjacent devices, which considered is an effective way to solve the problem of spectrum scarcity caused by tremendous mobile data traffic. If the cache-enabled users are willing to send the cached file to the requesters, the content delivery traffic can be offloaded through the D2D link. In this paper, we strive to find the maximum energy efficiency of the D2D caching network through the joint optimization of cache policy and content transmit power. Specifically, based on stochastic geometry-aided modeling of the network, we derive the data offloading rate in closed form, which jointly considers the effects of success sensing probability and success transmission probability. According to the data offloading rate, we formulate a joint optimization problem integrating cache policy and transmit power to maximize the system energy efficiency. To solve this problem, we propose two optimization algorithms that the cache policy optimization algorithm based on gradient update and the joint optimization algorithm. The simulation results demonstrate that the joint optimization has twice the superiority in improving the energy efficiency of the D2D caching network compared with other schemes.
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Prasad, Athul, Andreas Kunz, Genadi Velev, Konstantinos Samdanis, and JaeSeung Song. "Energy-Efficient D2D Discovery for Proximity Services in 3GPP LTE-Advanced Networks: ProSe Discovery Mechanisms." IEEE Vehicular Technology Magazine 9, no. 4 (December 2014): 40–50. http://dx.doi.org/10.1109/mvt.2014.2360652.
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Garey, Wesley D., Yishen Sun, and Richard A. Rouil. "Performance Evaluation of Proximity Services and Wi-Fi for Public Safety Mission Critical Voice Application." Wireless Communications and Mobile Computing 2020 (May 21, 2020): 1–12. http://dx.doi.org/10.1155/2020/8198767.
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Proximity Services (ProSe) and Wi-Fi are two promising technologies that may provide support for Mission Critical Voice (MCV) applications in remote and rural areas by enabling Device-to-Device (D2D) communication. In this paper, several performance metrics of ProSe and Wi-Fi are evaluated and compared side-by-side under various configurations. The ns-3 simulation results show that ProSe outperforms Wi-Fi in terms of coverage range and access time with a medium traffic load, while Wi-Fi has a shorter access time under a light traffic load. In addition, with various user densities, ProSe offers better coverage range and access time a majority of the time. The evaluation in this paper provides insights to first responders on what to expect with either technology and how to improve the performance by adjusting different system parameters.
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Kwon, Doyle, and Duk Kyung Kim. "Resource Allocation with a Rate Guarantee Constraint in Device-to-Device Underlaid Cellular Networks." Electronics 9, no. 3 (March 5, 2020): 438. http://dx.doi.org/10.3390/electronics9030438.
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Device-to-device (D2D) communication is a crucial technique for various proximity services. In addition to high-rate transmission and high spectral efficiency, a minimum data rate is increasingly required in various applications, such as gaming and real-time audio/video transmission. In this paper, we consider D2D underlaid cellular networks and aim to minimize the total channel bandwidth while every user equipment (UE) needs to achieve a pre-determined target data rate. The optimization problem is jointly involved with matching a cellular UE (CU) to a D2D UE (DU), and with channel assignment and power control. The optimization problem is decoupled into two suboptimization problems to solve power control and channel assignment problems separately. For arbitrary matching of CU, DU, and channel, the minimum channel bandwidth of the shared channel is derived based on signal-to-interference-plus-noise ratio (SINR)-based power control. The channel assignment is a three-dimensional (3-D) integer programming problem (IPP) with a triple (CU, DU, channel). We apply Lagrangian relaxation, and then decompose the 3-D IPP into two two-dimensional (2-D) linear programming problems (LPPs). From intensive numerical results, the proposed resource allocation scheme outperforms the random selection and greedy schemes in terms of average channel bandwidth. We investigate the impact of various parameters, such as maximum D2D distance and the number of channels.
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Tamayo Segarra, Jose Ignacio, Bilal Al Jammal, and Hakima Chaouchi. "New IoT proximity service based heterogeneous RFID readers collision control." PSU Research Review 1, no. 2 (August 14, 2017): 127–49. http://dx.doi.org/10.1108/prr-03-2017-0019.
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Purpose Internet of Things’ (IoT’s) first wave started with tracking services for better inventory management mainly using radio frequency identification (RFID) technology. Later on, monitoring services became one of the major interests, including sensing technologies, and then more actuation for remote control-type of IoT applications such as smart homes, smart cities and Industry 4.0. In this paper, the authors focus on the RFID technology impairment. They propose to take advantage of the mature IoT technologies that offer native service discovery such as blutooth or LTE D2D ProSe or Wifi Direct. Using the automatic service discovery in the new framework will make heterogeneous readers aware of the presence of other readers and this will be used by the proposed distributed algorithm to better control the multiple RFID reader interference problem. The author clearly considers emerging Industry 4.0 use case, where RFID technology is of major interest for both identification and tracking. To enhance the RFID tag reading performance, collisions in the RFID frequency should be minimized with reader-to-reader coordination protocols. In this paper, the author proposes a simple distributed reader anti-collision protocol named DiSim that makes use of proximity services of IoT network and is compliant with the current RFID standards. The author evaluates the efficiency of the proposal via simulation. Design/methodology/approach In this paper, the author proposes a simple distributed reader anti-collision protocol named DiSim that makes use of proximity services of IoT network and is compliant with the current RFID standards. The author evaluates the efficiency of the proposal via simulation to study its behavior in very dense and heterogeneous RFID environments. Specifically, the author explores the coexistence of powerful static readers and small mobile readers, comparing the proposal with a standard ETSI CSMA method. The proposal reduces significantly the number of access attempts, which are resource-expensive for the readers. The results show that the objectives of DiSim are met, producing low reader collision probability and, however, having lower average readings per reader per time. Findings DiSim is evaluated with the ETSI standard LBT protocol for multi-reader environments in several environments with varied levels of reader and tag densities, having both static powerful RFID readers and heterogeneous randomly moving mobile RFID readers. It effectively reduces the number of backoffs or contentions for the RFID channel. This has high reading success rate due to the avoided collisions; however, the readers are put to wait, and DiSim has less average readings per reader per time. As an additional side evaluation, the ETSI standard LBT mechanism was found to present a good performance for low-density mid-coverage scenarios, however, with high variability on the evaluation results. Research limitations/implications To show more results, the author needs to do real experimentation in a warehouse, such as Amazon warehouse, where he expects to have more and more robots, start shelves, automatic item finding on the shelve, etc. Practical implications Future work considers experimentation in a real warehouse equipped with heterogeneous RFID readers and real-time analysis of RFID reading efficiency also combined with indoor localization and navigation for warehouse mobile robots. Social implications More automatization is expected in the future; this work makes the use of RFID technology more efficient and opens more possibilities for services deployment in different domains such as the industry which was considered not only in this paper but also in smart cites and smart homes. Originality/value Compared to the literature, the proposal offers the advantage to not be dependent on a centralized server controlling the RFID readers. It also offers the possibility for an existing RFID architecture to add new readers from a different manufacturer, as the readers using the approach will have the possibility to discover the capabilities of the new interaction other RFID readers. This solution takes advantage of the available proximity service that will be more and more offered by the IoT technologies.
Dissertations / Theses on the topic "D2D proximity services"
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Toukabri, Thouraya. "CVS : a framework architecture for D2D-based cellular vehicular services in 4G networks and beyond." Thesis, Evry, Institut national des télécommunications, 2016. http://www.theses.fr/2016TELE0004/document.
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L'explosion du trafic dans les réseaux mobiles d'aujourd'hui est l'une des préoccupations majeures des opérateurs mobiles. En effet, entre investir dans le développement de l’infrastructure pour supporter l’évolution des besoins des utilisateurs et faire face à la concurrence accrue des nouveaux acteurs du marché, l’enjeu est considérable. Dans ce contexte, les communications Device-to-Device (D2D) offrent aux opérateurs mobiles de nouvelles opportunités aussi bien financières que techniques, à travers les communications directes entre les appareils mobiles permettant de délester le réseau d'une partie du trafic. L'organisme de standardisation 3GPP a défini des évolutions de son architecture LTE/4G fonctionnelle pour supporter les communications D2D dans le cadre de Services de Proximité (ProSe). Cependant, les modèles économiques autour de ces nouveaux services sont encore flous et les solutions actuellement proposées par le 3GPP visent un déploiement à court terme d’un ensemble limité de services (ex : les services de sécurité publique). La première contribution proposée dans le cadre de cette thèse est une évolution de l'architecture ProSe vers une architecture cible distribuée dans laquelle les fonctions liées à ProSe sont mutualisées avec d'autres fonctions réseaux. La deuxième contribution porte sur l’intégration des services véhiculaires dans les réseaux mobiles en tant que services ProSe particuliers reposant sur les communications D2D. L'architecture CVS (Cellular Vehicular Services) est alors proposée comme solution pour un déploiement à grande échelle des services véhiculaires en s'appuyant sur une nouvelle évolution de l’architecture ProSe distribuée. Un algorithme de « clustering » ainsi que des procédures de communication en mode relais D2D sont utilisés dans la conception de la solution afin d’optimiser l'usage des ressources du réseau. Enfin, les performances de ces contributions sont évaluées à l'aide de modèles analytiques et de simulations afin de valider les approches et solutions proposéesThe traffic explosion in today’s mobile networks is one of the major concerns of mobile operators. This explosion is mostly widening the gap between networks’ capacities and users’ growing needs in terms of bandwidth and QoS (Quality of Service), which directly impacts operators’ business profitability. In this context, Device-to-Device (D2D) communications offer mobile operators business and technical opportunities by allowing the network traffic offload with D2D direct communications between mobile devices. The recent standardization of D2D-based services as Proximity Services (ProSe) by the 3GPP provides already a set of enhancements to the current LTE/4G architecture to support these services. However, still in its infancy, the proposed solutions are envisioned for short-term market deployments and for a limited set of service categories (i.e public safety services). As a first contribution of this thesis, the proposed Distributed ProSe Architecture enhances the current ProSe architecture for a longer term deployment perspective of D2D-based services. On the basis of this enhanced architecture, vehicular communications and related services are further investigated as a specific implementation of ProSe as well as a new market opportunity for mobile operators. The CVS (Cellular Vehicular Services) solution is then introduced as an architecture framework that enables the integration of vehicular networks into mobile operators’ network infrastructure. A mobile network clustering algorithm and D2D relay-based communication mechanisms are used in the solution design in order to optimize the use of both core and radio network resources. Performance evaluation through analytical modeling and simulations are also carried out to validate the proposed contributions
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Rodriguez, J., X. Koudouridis, M. Gelabert, M. Tayyab, R. Bassoli, F. H. P. Fitzek, R. Torre, et al. "Secure Virtual Mobile Small Cells: A Stepping Stone Towards 6G." IEEE, 2001. http://hdl.handle.net/10454/18488.
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YesAs 5th Generation research reaches the twilight, the research community must go beyond 5G and look towards the 2030 connectivity landscape, namely 6G. In this context, this work takes a step towards the 6G vision by proposing a next generation communication platform, which aims to extend the rigid coverage area of fixed deployment networks by considering virtual mobile small cells (MSC) that are created on demand. Relying on emerging computing paradigms such as NFV (Network Function Virtualization) and SDN (Software Defined Networking), these cells can harness radio and networking capability locally reducing protocol signalling latency and overhead. These MSCs constitute an intelligent pool of networking resources that can collaborate to form a wireless network of MSCs providing a communication platform for localized, ubiquitous and reliable connectivity. The technology enablers for implementing the MSC concept are also addressed in terms of virtualization, lightweight wireless security, and energy efficient RF. The benefits of the MSC architecture towards reliable and efficient cell-offloading are demonstrated as a use-case.
This project has received funding from the European Union´s H2020 research and innovation program under grant agreement H2020-MCSAITN- 2016-SECRET 722424 [2].
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Rodriguez, J., X. Koudouridis, M. Gelabert, M. Tayyab, R. Bassoli, F. H. P. Fitzek, R. Torre, et al. "Secure Virtual Mobile Small Cells: A Stepping Stone Towards 6G." IEEE, 2021. http://hdl.handle.net/10454/18488.
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YesAs 5th Generation research reaches the twilight, the research community must go beyond 5G and look towards the 2030 connectivity landscape, namely 6G. In this context, this work takes a step towards the 6G vision by proposing a next generation communication platform, which aims to extend the rigid coverage area of fixed deployment networks by considering virtual mobile small cells (MSC) that are created on demand. Relying on emerging computing paradigms such as NFV (Network Function Virtualization) and SDN (Software Defined Networking), these cells can harness radio and networking capability locally reducing protocol signalling latency and overhead. These MSCs constitute an intelligent pool of networking resources that can collaborate to form a wireless network of MSCs providing a communication platform for localized, ubiquitous and reliable connectivity. The technology enablers for implementing the MSC concept are also addressed in terms of virtualization, lightweight wireless security, and energy efficient RF. The benefits of the MSC architecture towards reliable and efficient cell-offloading are demonstrated as a use-case.
This project has received funding from the European Union´s H2020 research and innovation program under grant agreement H2020-MCSAITN- 2016-SECRET 722424 [2].
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Ben, Mosbah Aziza. "Context-aware mechanisms for device discovery optimization." Thesis, Evry, Institut national des télécommunications, 2017. http://www.theses.fr/2017TELE0018/document.
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La recherche dans les réseaux de communication cherche à améliorer la capacité et les performances des technologies de réseaux tout en satisfaisant à la fois la demande croissante d’instantanéité des accès et des échanges d’information. Par exemple, les travaux sur les systèmes sans-fil de cinquième génération (5G) visent à augmenter le débit de données et l’efficacité spectrale mais aussi à réduire la latence et la consommation d’énergie. Dans ce contexte, la mise en réseau basée sur la proximité est envisagée afin d’améliorer l’échange d’information entre périphériques proches, même dans le cas où aucune infrastructure n’est disponible. Une composante essentielle de ces solutions est la capacité de rapidement détecter (ou découvrir) les autres systèmes à proximité. Bien que l’utilisation de la découverte des systèmes et de services ne soit pas à proprement parler une nouveauté dans les réseaux, son adoption dans les réseaux sans-fil a augmenté l’importance et la pertinence de ce type de mécanismes. Par conséquence, l’objectif de cette thèse est d’optimiser les performances du processus de découverte en utilisant des mécanismes contextuels. Dans un premier temps, nous commençons par une description préliminaire des défis auxquels sont confrontés les utilisateurs du réseau et comment les solutions actuelles (c’est-à-dire Long Term Evolution (LTE)) ne peuvent pas couvrir leurs besoins. Dans un deuxième temps, nous présentons l’architecture utilisée pour évaluer nos propositions: l’architecture appareil-à-appareil (D2D) qui est définie par le programme de partenariat de troisième génération (3GPP) pour être utilisée dans les réseaux LTE. Nous mettrons tout particulièrement l’accent sur la description du processus de découverte tel qu’il est défini dans les spécifications. Finalement, nous présentons une étude analytique, avec un modèle de mise en oeuvre pour tester et valider les performances de la découverte directe. En utilisant cette analyse, nous proposons un algorithme de transmission adaptatif qui optimise le processus de découverte pour les topologies statiques. Cette contribution sert de base à des algorithmes étendus et améliorés ciblant premièrement des scénarios où la disponibilité de données historiques permet de prédire les fluctuations de la densité des utilisateurs, et deuxièmement des situations entièrement dynamiques sans infrastructure ou support externe, montrant comment les mécanismes contextuels peuvent fournir des performances presque optimales. Toutes ces contributions et ces analyses sont supportées et validées par des modèles de simulation et des expériences qui montrent l’importance et l’exactitude de nos propositions dans l’optimisation de la performance et de la fiabilité dans le cadre de la découverte directeResearch in communication networks aims to improve the capabilities and performance of network technologies, and to satisfy the ever increasing demand for instant information access and exchange. For example, work on Fifth Generation (5G) Wireless Systems aims to increase data rates and spectral efficiency while lowering latency and energy consumption. Within this context, proximity-based networking is being considered in order to improve the data sharing between nearby devices, regardless of the availability of additional infrastructure. An integral component of these solutions is the ability to quickly detect (or discover) other systems in the vicinity. While system and service discovery has been a concept used in networks for some time, its adoption by wireless networks has increased the importance and relevance of this type of mechanisms. Therefore, the goal of this thesis is to optimize the performance of the discovery process by using context-aware mechanisms. First, we start by an introductory description of the challenges faced by network users and how current solutions (i.e. Long Term Evolution (LTE)) are unable to cover their needs. Second, we present the architecture we will use to evaluate our proposals, namely the device-to-device (D2D) architecture defined by the Third-Generation Partnership Program (3GPP) for use in LTE networks, with an emphasis on the description of the discovery process as defined in the standard specifications. Then, we present an analytical study, along with an implementation model to test and validate the performance of direct discovery. Building upon that analysis, we propose an adaptive transmission algorithm that optimizes the discovery process for static topologies. This contribution is used as the foundation for extended and enhanced algorithms targeting scenarios where the availability of historic data allows for predicting user density fluctuations, and fully dynamic situations without external infrastructure or support, showing how context-aware mechanisms can provide almost optimal performance. All these contributions and analysis are supported and validated by simulation models and experiments that showcase the importance and correctness of our proposals in the optimization of the performance and reliability in D2D direct discovery
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Feng, Junyi. "La communication D2D dans le réseau LTE-Advanced." Phd thesis, 2013. http://tel.archives-ouvertes.fr/tel-00983507.
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Device-to-device (D2D) communication is a promising new feature in LTE-Advanced networks. It is brought up to enable efficient discovery and communication between proximate devices. With D2D capability, devices in physical proximity could be able to discover each other using LTE radio technology and to communicate with each other via a direct data path. This thesis is concerned with the design, coordination and testing of a hybrid D2D and cellular network. Design requirements and choices in physical and MAC layer functions to support D2D discovery and communication underlaying LTE networks are analyzed. In addition, a centralized scheduling strategy in base station is proposed to coordinate D2D data communication operating in LTE spectrum. The scheduling strategy combines multiple techniques, including mode selection, resource and power allocation, to jointly achieve an overall user performance improvement in a cell. Finally the performances of D2D data communication underlaying LTE system are calibrated in a multi-link scenario via system-level simulation.
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Demers, Chantale. "L'éthique communautaire et féministe en économie sociale : le cas des entreprises d'aide à domicile /." 2003. http://proquest.umi.com/pqdweb?did=766574551&sid=2&Fmt=2&clientId=9268&RQT=309&VName=PQD.
Full textBook chapters on the topic "D2D proximity services"
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Giannoulakis, Ioannis, Emmanouil Kafetzakis, and Anastasios Kourtis. "Device-to-Device Communications." In Geospatial Research, 1395–417. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-4666-9845-1.ch065.
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This chapter provides an account of the most significant areas of scenarios and applications relevant to Device-To-Device (D2D) communications. At first, a state of the art review is provided, with focus on the special technological challenges. In addition, integration initiatives with modern cellular technologies and standards are given. Important architecture concepts like e.g., resource management and mobility issues have been highlighted, in order to present the main areas of impact of D2D communications. Since D2D communications capitalise on the contemporary networking paradigm of cooperative communications novel methods for overcoming several limitations have been discussed and emerging paradigms such as proximity and location-based services, coupled with social networking and commercial services have been considered. Finally, possible future research directions relevant to D2D networking are discussed.
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Giannoulakis, Ioannis, Emmanouil Kafetzakis, and Anastasios Kourtis. "Device-to-Device Communications." In Advances in Wireless Technologies and Telecommunication, 234–55. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-4666-8732-5.ch010.
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This chapter provides an account of the most significant areas of scenarios and applications relevant to Device-To-Device (D2D) communications. At first, a state of the art review is provided, with focus on the special technological challenges. In addition, integration initiatives with modern cellular technologies and standards are given. Important architecture concepts like e.g., resource management and mobility issues have been highlighted, in order to present the main areas of impact of D2D communications. Since D2D communications capitalise on the contemporary networking paradigm of cooperative communications novel methods for overcoming several limitations have been discussed and emerging paradigms such as proximity and location-based services, coupled with social networking and commercial services have been considered. Finally, possible future research directions relevant to D2D networking are discussed.
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Panigrahi, Bighnaraj, Hemant Kumar Rath, Bhushan Jagyasi, and Anantha Simha. "D2D- and DTN-Based Efficient Data Offloading Techniques for 5G Networks." In Advances in Wireless Technologies and Telecommunication, 190–209. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-2023-8.ch009.
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With the advancement of smart phone technologies cellular communication has come to a stage where user bandwidth has surpassed the available bandwidth. In addition, the well-organized but stubborn architecture of cellular networks sometimes creates hindrance to the optimal usage of the network resources. Due to this, a User Equipment (UE) experiencing a poor channel to the Base Station (BTS) or evolved NodeB (eNB) or any other Access Point (AP) retransmits the data. In such scenarios, Device-to-Device (D2D) communication and offload/relay underlying the cellular networks or the access networks provides a unique solution where the affected UE can find a close proximity offloader UE to relay its data to eNB. Delay Tolerant Networks (DTN) is another framework which has potential usage in low-connectivity zones like cell edge and/or remote locations in cellular networks. This chapter investigates various possibilities where D2D and DTN can be jointly used to improve teledensity as well delayed but guaranteed services to poor or no connectivity areas.
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Panigrahi, Bighnaraj, Hemant Kumar Rath, Bhushan Jagyasi, and Anantha Simha. "D2D- and DTN-Based Efficient Data Offloading Techniques for 5G Networks." In Research Anthology on Developing and Optimizing 5G Networks and the Impact on Society, 437–56. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-7708-0.ch018.
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With the advancement of smart phone technologies cellular communication has come to a stage where user bandwidth has surpassed the available bandwidth. In addition, the well-organized but stubborn architecture of cellular networks sometimes creates hindrance to the optimal usage of the network resources. Due to this, a User Equipment (UE) experiencing a poor channel to the Base Station (BTS) or evolved NodeB (eNB) or any other Access Point (AP) retransmits the data. In such scenarios, Device-to-Device (D2D) communication and offload/relay underlying the cellular networks or the access networks provides a unique solution where the affected UE can find a close proximity offloader UE to relay its data to eNB. Delay Tolerant Networks (DTN) is another framework which has potential usage in low-connectivity zones like cell edge and/or remote locations in cellular networks. This chapter investigates various possibilities where D2D and DTN can be jointly used to improve teledensity as well delayed but guaranteed services to poor or no connectivity areas.
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Clark, Anna. "Domestic servants and the labour movement, 1870s–1914." In Labour united and divided from the 1830s to the present, 83–98. Manchester University Press, 2018. http://dx.doi.org/10.7228/manchester/9781526126320.003.0006.
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Between the 1870s and 1914, there was no occupation with a higher proportion of women workers than domestic service. Female servants, however, faced the problem that many working-class people, including most socialists and trade unionists, did not see them as members of the working class. Refusing to take for granted the servants' proverbial deference and lack of class-consciousness, this chapter examines the numerous ways in which domestic servants tried to overcome the barrier separating them from the organised labour movement. Servants were not as isolated as one might think from other working-class people. Physical proximity with employers could actually fuel class resentment, and in comparing themselves to animals, slaves and machines, the servants signaled their commonality with the rest of the working class. The chapter also focuses on some of the servants' attempts to form unions of their own, in particular in Dundee and London. Through their obstinacy servants eventually gained inclusion in workers’ compensation and health insurance legislation between 1906 and 1913. This study of a long-neglected branch of the British proletariat suggests that the working class cannot be understood only in terms of industrial wage labourers and conventional trade union organisation.
Conference papers on the topic "D2D proximity services"
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Griffith, David, Aziza Ben Mosbah, and Richard Rouil. "Group discovery time in device-to-device (D2D) proximity services (ProSe) networks." In IEEE INFOCOM 2017 - IEEE Conference on Computer Communications. IEEE, 2017. http://dx.doi.org/10.1109/infocom.2017.8057077.
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Medina, Daniel, Liang Hu, Holger Rosier, and Serkan Ayaz. "Interference-Aware Dynamic Resource Allocation for D2D Proximity Services with Beamforming Support." In GLOBECOM 2015 - 2015 IEEE Global Communications Conference. IEEE, 2014. http://dx.doi.org/10.1109/glocom.2014.7416946.
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Medina, Daniel, Liang Hu, Holger Rosier, and Serkan Ayaz. "Interference-Aware Dynamic Resource Allocation for D2D Proximity Services with Beamforming Support." In GLOBECOM 2015 - 2015 IEEE Global Communications Conference. IEEE, 2015. http://dx.doi.org/10.1109/glocom.2015.7416946.
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Nasraoui, Leila. "Partial Contention-Free D2D Discovery for Proximity-Based Services in Cellular Networks." In 2018 International Conference on Smart Communications in Network Technologies (SaCoNeT). IEEE, 2018. http://dx.doi.org/10.1109/saconet.2018.8585601.
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Seungwan Ryu, Sei-Kwon Park, Nam-Hoon Park, and Sam Chung. "Development of device-to-device(D2D) communication based new mobile proximity multimedia service business models." In 2013 IEEE International Conference on Multimedia and Expo Workshops (ICMEW). IEEE, 2013. http://dx.doi.org/10.1109/icmew.2013.6618379.
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