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Author: Lingyang Song
Publisher: Springer Science & Business Media
ISBN: 1461481937
Category : Computers
Languages : en
Pages : 85
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Book Description
Device-to-Device (D2D) communication will become a key feature supported by next generation cellular networks, a topic of enormous importance to modern communication. Currently, D2D serves as an underlay to the cellular network as a means to increase spectral efficiency. Although D2D communication brings large benefits in terms of system capacity, it also causes interference as well as increased computation complexity to cellular networks as a result of spectrum sharing. Thus, efficient resource management must be performed to guarantee a target performance level of cellular communication. This brief presents the state-of-the-art research on resource management for D2D communication underlaying cellular networks. Those who work with D2D communication will use this book’s information to help ensure their work is as efficient as possible. Along with the survey of existing work, this book also includes the fundamental theories, key techniques, and applications.
Author: Lingyang Song
Publisher: Springer Science & Business Media
ISBN: 1461481937
Category : Computers
Languages : en
Pages : 85
Get Book Here
Book Description
Device-to-Device (D2D) communication will become a key feature supported by next generation cellular networks, a topic of enormous importance to modern communication. Currently, D2D serves as an underlay to the cellular network as a means to increase spectral efficiency. Although D2D communication brings large benefits in terms of system capacity, it also causes interference as well as increased computation complexity to cellular networks as a result of spectrum sharing. Thus, efficient resource management must be performed to guarantee a target performance level of cellular communication. This brief presents the state-of-the-art research on resource management for D2D communication underlaying cellular networks. Those who work with D2D communication will use this book’s information to help ensure their work is as efficient as possible. Along with the survey of existing work, this book also includes the fundamental theories, key techniques, and applications.
Author: Li Wang
Publisher: Springer
ISBN: 3319306812
Category : Computers
Languages : en
Pages : 103
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Book Description
This SpringerBrief focuses on crucial issues for device-to-device (D2D) communications within the rapidly expanding 4G LTE toward 5G system. Several critical technical challenges in D2D communications are discussed, and D2D standardization activities in 3GPP are provided. Topics range from proximity discovery and mode selection, to resource management. The authors investigate proximity detection solutions for enabling direct user equipment communication by listening to uplink transmission. The problem of mixed mode selection is demonstrated to meet multiple quality of service (QoS) requirements in D2D enabled cellular networks. Finally, the brief explores the problem of designing interference-constrained resource allocation to pair cellular user resources with potential D2D links in cellular D2D underlay, with the goal of improving spectrum efficiency. Device-to-Device Communications in Cellular Networks targets researchers and professionals working in wireless communications and networks. Advanced-level students in electrical engineering and computer science studying wireless communications and networks can also use this material as a study guide.
Author: Huan Tang
Publisher:
ISBN: 9781369202588
Category :
Languages : en
Pages :
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Book Description
The rapid growth of mobile wireless data service continues to stimulate the investment and expansion of high-rate and bandwidth-efficient wireless network systems. High volume data traffics in modern wireless system can lead to network overload, congestion, and process delay, severely straining the limited resource and capability of cellular networks. As a result, new connection modes such as device-to-device (D2D) has emerged as potential means to alleviate traffic load on radio network controllers (RNC) and eNodeBs (eNBs). We investigated several technical aspects critical to D2D communications as an underlay within existing cellular networks. · Neighbor Discovery: One of the first steps in setting up D2D links involves pairing UEs that are in close proximity. This is accomplished during neighbor discovery process, where UEs will identify their neighbors for potential direct-link setup. To facilitate the deployment of D2D functionality to standard LTE cellular systems, it is necessary to explore neighbor discovery opportunities in existing LTE infrastructure. We developed neighbor discovery methods that are compatible with current protocols in 4G LTE networks. · Cochannel Interference Management: D2D communications can improve spectral efficiency of the cellular system by allowing D2D links share the same spectrum with cellular link. However, it also leads to a critical problem of interference management. As more advanced multi-antenna user equipment becomes widespread, precoding serves as an effective technique to combat cochannel interference. We proposed practical precoder selection strategies that utilize existing LTE codebook. To overcome channel estimation error, robust precoding techniques are further developed to guarantee cellular outage requirements within D2D underlaid cellular systems. · Resource Allocation: Resource allocation is an important topic for effective interference management across the network. For example, the eNB can allocate cellular resources to direct links that are far apart so as to reduce cochannel interference. We developed an efficient algorithm that optimizes resource allocation of D2D links across multiple D2D modes and cellular channels. With practical consideration of statistical CSI, we provided a general framework for optimizing channel and power allocation of D2D underlay with applicability to various channel fading models. Neighbor discovery, cochannel interference management and resource allocation are three successive, vital steps in setting up D2D communications in the cellular system. We proposed technical solutions to each phase with an emphasis on their compatibility with existing system architecture. Our study discloses huge potential of D2D as a practical solution to boost performances of cellular networks.
Author: Jinsong Wu
Publisher: CRC Press
ISBN: 1466501081
Category : Computers
Languages : en
Pages : 840
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Book Description
Nowadays energy crisis and global warming problems are hanging over everyone's head, urging much research work on energy saving. In the ICT industry, which is becoming a major consumer of global energy triggered by the telecommunication network operators experiencing energy cost as a significant factor in profit calculations, researchers have start
Author: Hongliang Zhang
Publisher: Springer
ISBN: 3319604694
Category : Technology & Engineering
Languages : en
Pages : 70
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Book Description
This brief focuses on introducing a novel mathematical framework, referred as hypergraph theory, to model and solve the multiple interferer scenarios for future wireless communication networks. First, in Chap. 1, the authors introduce the basic preliminaries of hypergraph theory in general, and develop two hypergraph based polynomial algorithms, i.e., hypergraph coloring and hypergraph clustering. Then, in Chaps. 2 and 3, the authors present two emerging applications of hypergraph coloring and hypergraph clustering in Device-to-Device (D2D) underlay communication networks, respectively, in order to show the advantages of hypergraph theory compared with the traditional graph theory. Finally, in Chap. 4, the authors discuss the limitations of using hypergraph theory in future wireless networks and briefly present some other potential applications. This brief introduces the state-of-the-art research on the hypergraph theory and its applications in wireless communications. An efficient framework is provided for the researchers, professionals and advanced level students who are interested in the radio resource allocation in the heterogeneous networks to solve the resource allocation and interference management problems.
Author: Lingyang Song
Publisher: Cambridge University Press
ISBN: 1107063574
Category : Computers
Languages : en
Pages : 437
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Book Description
Enables engineers and researchers to understand the fundamentals and applications of device-to-device communications and its optimization in wireless networking.
Author: Yuan Kai
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Xue Chen
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Device-to-Device communications have the great potential to bring significant performance boost to the conventional heterogeneous network by reusing cellular resources. In cellular networks, Device-to-Device communication is defined as two user equipments in a close range communicating directly with each other without going through the base station, thus offloading cellular traffic from cellular networks. In addition to improve network spectral efficiency, D2D communication can also improve energy efficiency and user experience. However, the co-existence of D2D communication on the same spectrum with cellular users can cause severe interference to the primary cellular users. Thus the performance of cellular users must be assured when supporting underlay D2D users. In this work, we have investigated cross-layer optimization, resource allocation and interference management schemes to improve user experience, system spectral efficiency and energy efficiency for D2D communication underlaying heterogeneous networks. By exploiting frequency reuse and multi-user diversity, this research work aims to design wireless system level algorithms to utilize the spectrum and energy resources efficiently in the next generation wireless heterogeneous network.
Author: Rath Vannithamby
Publisher: John Wiley & Sons
ISBN: 1119514835
Category : Technology & Engineering
Languages : en
Pages : 320
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Book Description
A comprehensive text to an understanding the next generation mobile broadband and wireless Internet of Things (IoT) technologies 5G Verticals brings together in one comprehensive volume a group of visionaries and technical experts from academia and industry. The expert authors discuss the applications and technologies that comprise 5G verticals. The earlier network generations (2G to 4G) were designed as on-size-fits-all, general-purpose connectivity platforms with limited differentiation capabilities. 5G networks have the capability to demand customizable mobile networks and create an ecosystem for technical and business innovation involving vertical markets such as automotive, healthcare, manufacturing, energy, food and agriculture, city management, government, public transportation, media and more. 5G will serve a large portfolio of applications with various requirements ranging from high reliability to ultra-low latency going through high bandwidth and mobility. In this book, the authors explore applications and usages of various 5G verticals including a set of key metrics for these uses and their corresponding target requirements. The book also examines the potential network architectures and enabling technologies to meet the requirements of 5G verticals. This important book: Offers a comprehensive resource to the promise of 5G Verticals Provides a set of key metrics for the uses and target requirements Contains illustrative examples of the technology and applications Includes contributions from experts in the field and professionals that developed the 5G standards Provides an analysis of specific vertical industries which have the potential to be among the first industries to use 5G Written for industry practitioners, engineers and researchers, 5G Verticals discusses the technology that enables the 5G system to be flexibly deployed and scaled.
Author: Boon-Chong Seet
Publisher: MDPI
ISBN: 3038427381
Category : Technology & Engineering
Languages : en
Pages : 183
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Book Description
This book is a printed edition of the Special Issue "Recent Advances in Cellular D2D Communications" that was published in Future Internet
