Multiuser Communications With Relaying And User Cooperation
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| Author | : Etienne Auger |
| Publisher | : Logos Verlag Berlin GmbH |
| Total Pages | : 262 |
| Release | : 2012 |
| Genre | : Computers |
| ISBN | : 3832532099 |
This book details promising communication schemes and channel modeling for a pervasive wireless access network (PWAN). Such a network is formed by nodes equipped with heterogeneous antenna arrangements and placed up to 10 m apart from each other. Nodes can be static when they belong to the infrastructure or have limited mobility when they are carried by a person. This scenario is extremely interesting for relay-based applications and fills the gap between the body area network that has a coverage up to 1 m and the wireless local area network that has a coverage up to 100 m. When a PWAN is jointly considered with high node density, it allows for node cooperations, and idle or infrastructure nodes can support the communication of source-destination pairs. With an adequate signaling scheme, the PWAN can operate as a virtual antenna array and ultimately achieve multiple-input multiple-output (MIMO) gains in a distributed way. Until now these networks have been studied using oversimplified channel models that were frequency flat and designed for cellular low node density networks. The novelty of this book is the study of a PWAN under realistic channel conditions and hardware constraints.
| Author | : Stefan Berger |
| Publisher | : Logos Verlag Berlin GmbH |
| Total Pages | : 337 |
| Release | : 2010 |
| Genre | : |
| ISBN | : 383252536X |
In this thesis, several important aspects of cooperative wireless multiuser networks are investigated. The focus lies on coherent two-hop relaying networks where several amplify-and-forward (AF) relays assist the communication between multiple source-destination pairs. First, the impact of local oscillator (LO) imperfections and I/Q imbalance at the relays on two-hop relaying is investigated. A special focus lies on the comparison between frequency division duplexing (FDD) and time division duplexing (TDD) relays. Based on the observation that the direction in which a channel between two wireless nodes is measured has an impact on the estimate, phase synchronization requirements for coherent relaying networks are then found. Several channel estimation protocols that differ in the direction in which the single-hop channels are measured are furthermore identi'ed and their performance is compared. Next, a very simple phase synchronization scheme is presented that provides a set of relays with a common LO phase. Two coherent beamforming schemes, namely multiuser zero-forcing (MUZF) and multiuser minimum mean squared error (MMSE) relaying, are then investigated. Finally, a real-world demonstrator for distributed wireless communication networks (called RACooN Lab) is presented. It was used to implement coherent cooperative communication schemes on a practical two-hop relaying network.
| Author | : J.K. Skwirzynski |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 730 |
| Release | : 1981-10-31 |
| Genre | : Language Arts & Disciplines |
| ISBN | : 9789028627710 |
| Author | : Ioannis Krikidis |
| Publisher | : IET |
| Total Pages | : 537 |
| Release | : 2016-06-10 |
| Genre | : Technology & Engineering |
| ISBN | : 1785610031 |
Advanced Relay Technologies in Next Generation Wireless Communications describes the use of the highly successful cooperative networks/relaying approach in new and emerging telecommunications technologies such as full-duplex radio, massive multiple-input multiple-output (MIMO), network coding and spatial modulation, and new application areas including visible light communications (VLC), molecular communications, wireless power transfer, and 5G. Topics covered include: -spatial modulation for cooperative networks -relaying for massive MIMO; relaying for outdoor to indoor in mmWave communications -precoding techniques for relaying with interference -relaying in full-duplex radio communication systems -relay selection in modern communication systems -relaying in green communications systems -energy-efficient relaying -cognitive radio with relaying -relaying in non-ideal conditions -relaying and physical layer secrecy relaying technologies for smart grid -simultaneous wireless and power transfer for interference relay channel -relaying in visible light communication systems -on-ground and on-board signal processing for multibeam precoding.
| Author | : Uysal, Murat |
| Publisher | : IGI Global |
| Total Pages | : 632 |
| Release | : 2009-07-31 |
| Genre | : Computers |
| ISBN | : 1605666661 |
Offers practitioners, researchers, and academicians with fundamental principles of cooperative communication. This book provides readers diverse findings and exposes underlying issues in the analysis, design, and optimization of wireless systems.
| Author | : Y.-W. Peter Hong |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 411 |
| Release | : 2010-07-28 |
| Genre | : Technology & Engineering |
| ISBN | : 1441971947 |
Cooperative and relay communications have recently become the most widely explored topics in communications, whereby users cooperate in transmitting their messages to the destination, instead of conventional networks which operate independently and compete among each other for channel resources. As the field has progressed, cooperative communications have become a design concept rather than a specific transmission technology. This concept has revolutionized the design of wireless networks, allowing increased coverage, throughput, and transmission reliability even as conventional transmission techniques gradually reach their limits. Cooperative and relay technologies have also made their way toward next generation wireless standards, such as IEEE802.16 (WiMAX) or LTE, and have been incorporated into many modern wireless applications, such as cognitive radio and secret communications. Cooperative Communications and Networking: Technologies and System Design provides a systematic introduction to the fundamental concepts of cooperative communications and relays technology to enable engineers, researchers or graduate students to conduct advanced research and development in this area. Cooperative Communications and Networking: Technologies and System Design provides researchers, graduate students, and practical engineers with sufficient knowledge of both the background of cooperative communications and networking, and potential research directions.
| Author | : Anas Chaaban |
| Publisher | : |
| Total Pages | : 206 |
| Release | : 2015-09-15 |
| Genre | : Technology & Engineering |
| ISBN | : 9781601987884 |
This monograph provides an overview of the developments in Multi-way Communications since it was initiated by Claude Shannon.
| Author | : |
| Publisher | : Academic Press |
| Total Pages | : 687 |
| Release | : 2014-07-29 |
| Genre | : Technology & Engineering |
| ISBN | : 012397223X |
This book gives a review of the principles, methods and techniques of important and emerging research topics and technologies in Channel Coding, including theory, algorithms, and applications. Edited by leading people in the field who, through their reputation, have been able to commission experts to write on a particular topic. With this reference source you will: - Quickly grasp a new area of research - Understand the underlying principles of a topic and its applications - Ascertain how a topic relates to other areas and learn of the research issues yet to be resolved - Quick tutorial reviews of important and emerging topics of research in Channel Coding - Presents core principles in Channel Coding theory and shows their applications - Reference content on core principles, technologies, algorithms and applications - Comprehensive references to journal articles and other literature on which to build further, more specific and detailed knowledge
| Author | : Chunfeng Liu |
| Publisher | : Springer |
| Total Pages | : 880 |
| Release | : 2012-09-07 |
| Genre | : Computers |
| ISBN | : 3642340385 |
This two-volume set of CCIS 307 and CCIS 308 constitutes the refereed proceedings of the Third International Conference on Information Computing and Applications, ICICA 2012, held in Chengde, China, in September 2012. The 330 revised full papers presented in both volumes were carefully reviewed and selected from 1089 submissions. The papers are organized in topical sections on internet computing and applications; multimedia networking and computing; intelligent computing and applications; computational statistics and applications; knowledge management and applications; communication technology and applications; information management system; control engineering and applications; business intelligence and applications; cloud and evolutionary computing; computational genomics and proteomics; engineering management and applications.
| Author | : Peter Matthias R. Rost |
| Publisher | : Jörg Vogt Verlag |
| Total Pages | : 226 |
| Release | : 2009 |
| Genre | : |
| ISBN | : 3938860235 |
