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Author : Bin Guo
Publisher :
ISBN 13 :
Total Pages : 206 pages
Book Rating : 4.:/5 (842 download)
Download or read book Exploiting Network Coding in Different Wireless Networks written by Bin Guo and published by . This book was released on 2012 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fang-Chun Kuo
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (553 download)
Download or read book Exploiting Network Coding in Lossy Wireless Networks written by Fang-Chun Kuo and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jasper Goseling
Publisher :
ISBN 13 : 9789461130273
Total Pages : pages
Book Rating : 4.1/5 (32 download)
Download or read book Network Coding written by Jasper Goseling and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Yang Qin
Publisher : Springer
ISBN 13 : 3319297708
Total Pages : 187 pages
Book Rating : 4.3/5 (192 download)
Download or read book Network Coding at Different Layers in Wireless Networks written by Yang Qin and published by Springer. This book was released on 2016-05-14 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on how to apply network coding at different layers in wireless networks – including MAC, routing, and TCP – with special focus on cognitive radio networks. It discusses how to select parameters in network coding (e.g., coding field, number of packets involved, redundant information ration) in order to be suitable for the varying wireless environments. The author explores how to deploy network coding in MAC to improve network performance and examine joint network coding with opportunistic routing to improve the successful rate of routing. In regards to TCP and network coding, the author considers transport layer protocol working with network coding to overcome the transmission error rate, particularly with how to use the ACK feedback of TCP to enhance the efficiency of network coding. The book pertains to researchers and postgraduate students, especially whose interests are in opportunistic routing and TCP in cognitive radio networks.
Author : Yingda Chen
Publisher : ProQuest
ISBN 13 : 9781109166798
Total Pages : 162 pages
Book Rating : 4.1/5 (667 download)
Download or read book Interactive Networking: Exploiting Network Coding and Game Theory in Multiuser Wireless Communications written by Yingda Chen and published by ProQuest. This book was released on 2008 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past decades, wireless networks have emerged into systems of interactive entities, instead of a simple accumulation of independent, stand-alone components. Such trends require a better understanding of the different interaction that may exist in wireless networks, or more generally, in communication networks.
Author : Zihuai Lin
Publisher : CRC Press
ISBN 13 : 1000597679
Total Pages : 211 pages
Book Rating : 4.0/5 (5 download)
Download or read book Design of Network Coding Schemes in Wireless Networks written by Zihuai Lin and published by CRC Press. This book was released on 2022-06-23 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a consolidated view of the various network coding techniques to be implemented at the design of the wireless networks for improving its overall performance. It covers multiple sources communicating with multiple destinations via a common relay followed by network coded modulation schemes for multiple access relay channels. Performance of the distributed systems based on distributed convolutional codes with network coded modulation is covered including a two-way relay channel (TWRC). Two MIF protocols are proposed including derivation of signal-to-noise ratio (SNR) and development of threshold of the channel conditions of both. Features: Systematically investigates coding and modulation for wireless relay networks. Discusses how to apply lattice codes in implementing lossless communications and lossy source coding over a network. Focusses on theoretical approach for performance optimization. Includes various network coding strategies for different networks. Reviews relevant existing and ongoing research in optimization along with practical code design. This book aims at Researchers, Professionals and Graduate students in Networking, Communications, Information, Coding Theory, Theoretical Computer Science, Performance Analysis and Resource Optimization, Applied Discrete Mathematics, and Applied Probability.
Author : MinJi Kim (Ph. D.)
Publisher :
ISBN 13 :
Total Pages : 167 pages
Book Rating : 4.:/5 (795 download)
Download or read book Network Coding for Robust Wireless Networks written by MinJi Kim (Ph. D.) and published by . This book was released on 2012 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wireless networks and communications promise to allow improved access to services and information, ubiquitous connectivity, and mobility. However, current wireless networks are not well-equipped to meet the high bandwidth and strict delay requirements of future applications. Wireless networks suffer from frequent losses and low throughput. We aim to provide designs for robust wireless networks. This dissertation presents protocols and algorithms that significantly improve wireless network performance and effectively overcome interference, erasures, and attacks. The key idea behind this dissertation is in understanding that wireless networks are fundamentally different from wired networks, and recognizing that directly applying techniques from wired networks to wireless networks limits performance. The key ingredient underlying our algorithms and protocols is network coding. By recognizing the algebraic nature of information, network coding breaks the convention of routing networks, and allows mixing of information in the intermediate nodes and routers. This mixing has been shown to have numerous performance benefits, e.g. increase in throughput and robustness against losses and failures. We present three protocols and algorithms, each using network coding to harness a different characteristic of the wireless medium. We address the problem of interference, erasures, and attacks in wireless networks with the following network coded designs. -- Algebraic NC exploits strategic interference to provide a distributed, randomized code construction for multi-user wireless networks. Network coding framework simplifies the multi-user wireless network model, and allows us to describe the multi-user wireless networks in an algebraic framework. This algebraic framework provides a randomized, distributed code construction, which we show achieves capacity for multicast connections as well as a certain set of non-multicast connections. -- TCP/NC efficiently and reliably delivers data over unreliable lossy wireless networks. TCP, which was designed for reliable transmission over wired networks, often experiences severe performance degradation in wireless networks. TCP/NC combines network coding's erasure correction capabilities with TCP's congestion control mechanism and reliability. We show that TCP/NC achieves significantly higher throughput than TCP in lossy networks; therefore, TCP/NC is well suited for reliable communication in lossy wireless networks. -- Algebraic Watchdog takes advantage of the broadcast nature of wireless networks to provide a secure global self-checking network. Algebraic Watchdog allows nodes to detect malicious behaviors probabilistically, and police their neighbors locally using overheard messages. Unlike traditional detection protocols which are receiver-based, this protocol gives the senders an active role in checking the nodes downstream. We provide a trellis-based inference algorithm and protocol for detection, and analyze its performance. The main contribution of this dissertation is in providing algorithms and designs for robust wireless networks using network coding. We present how network coding can be applied to overcome the challenges of operating in wireless networks. We present both analytical and simulation results to support that network coded designs, if designed with care, can bring forth significant gains, not only in terms of throughput but also in terms of reliability, security, and robustness.
Author : Konstantinos Ntontin
Publisher :
ISBN 13 :
Total Pages : 156 pages
Book Rating : 4.:/5 (112 download)
Download or read book Exploiting Spatial Modulation and Analog Network Coding for the Design of Energy-efficient Wireless Networks written by Konstantinos Ntontin and published by . This book was released on 2015 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the data rate demands of the cellular users increase, together with their number, it is expected that unprecedented capacity demands should be met in wireless networks in the forthcoming years. However, the energy consumption to meet these rates is expected to increase exponentially, according to trends. This can become a serious issue for both the environment, due to CO2 emissions, and the operators, which will have to pay more for electricity. Hence, several energy-efficient solutions have been proposed, such as multiple antenna systems, dynamic spectrum allocation, heterogeneous networks, and Network Coding, to name a few. Based on the above, the aim of this thesis to propose low-complexity and energy-efficient physical layer-based solutions compared to the already existing approaches, without sacrificing the quality of performance. More specifically, the focus is on the technologies of Spatial Modulation and Analog Network Coding. Both schemes offer the so-called multiplexing gain, which means that multiple streams can be transmitted without sacrificing resources, such as bandwidth. As far as Spatial Modulation is concerned, Spatial Modulation-based schemes are proposed that are more energy efficient than state-of-the-art technologies. Regarding Analog Network Coding, we study its implementation in relay-based scenarios and how it compares in terms of energy efficiency with conventional protocols, such as the time-division multiple access protocol. From the obtained results, the conclusion that can be drawn is that depending on the scenario both Spatial Modulation and Analog Network Coding can provide significant energy gains compared to existing technologies without sacrificing performance.
Author : Yu-Pin Hsu
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (92 download)
Download or read book Wireless Network Coding written by Yu-Pin Hsu and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The access to information anywhere and anytime is becoming a necessity in our daily life. Wireless technologies are expected to provide ubiquitous access to information and to support a broad range of emerging applications, such as multimedia streaming and video conferencing. The need to support the explosive growth in wireless traffic requires new tools and techniques that maximize the spectrum efficiency, as well as minimize delays and power consumption. This dissertation aims at novel approaches for the design and analysis of efficient and reliable wireless networks. We plan to propose efficient solutions that leverage user collaboration, peer-to-peer data exchange, and the novel technique of network coding. Network coding improves the performance of wireless networks by exploiting the broadcast nature of the wireless spectrum. The new techniques, however, pose significant challenges in terms of control, scheduling, and mechanism design. The proposed research will address these challenges by developing novel network controllers, packet schedulers, and incentive mechanisms that would encourage the clients to collaborate and contribute resources to the information transfer. Our contributions can be broadly divided into three research thrusts: (1) stochastic network coding; (2) incentive mechanism design; (3) joint coding and scheduling design. In the first thrust we consider a single-relay network and propose an optimal controller for the stochastic setting as well as a universal controller for the on-line setting. We prove that there exist an optimal controller for the stochastic setting which is stationary, deterministic, and threshold type based on the queue length. For the on-line setting we present a randomized algorithm with the competitive ratio of e/(e-1). In the second thrust, we propose incentive mechanisms for both centralized and distributed settings. In the third thrust, we propose joint coding and scheduling algorithms for time-varying wireless networks. The outcomes of our research have both theoretical and practical impact. We design and validate efficient algorithms, as well as provide insights on the fundamental properties of wireless networks. We believe these results are valuable for the industry as they are instrumental for the design and analysis of future wireless and cellular networks that are more efficient and robust. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/152682
Author : Atoosa Hatefi
Publisher :
ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.:/5 (94 download)
Download or read book Distributed Coding for Wireless Cooperative Networks written by Atoosa Hatefi and published by . This book was released on 2012 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the rapid growth of wireless technologies, devices and mobile applications, the quest of high throughput and ubiquitous connectivity in wireless communications increases rapidly as well. Relaying is undoubtedly a key concept to provide coverage extension and capacity increase in wireless networks. Network coding, which allows the intermediate nodes to share their computation capabilities in addition to their resource and their power, has grabbed a significant research attention since its inception in information theory. It has become an attractive candidate to bring promising performance improvement, especially in terms of throughput, in relay-based cellular networks. Substantial research efforts are currently focused on theoretical analysis, implementation and evaluation of network coding from a physical layer perspective. The question is, what is the most efficient and practical way to use network coding in wireless relay-based networks, and whether it is beneficial to exploit the broadcast and multiple-access properties of the wireless medium to perform network coding. It is in such a context, that this thesis proceeds. In the first part of the thesis, the problem of Joint Network-Channel Coding (JNCC) for a Multiple Access Relay Channel (MARC) is investigated in the presence of multiple access interferences and for both of the relay operating modes, namely, half-duplex and full-duplex. To this end, three new classes of MARC, referred to as Half-Duplex Semi-Orthogonal MARC (HD-SOMARC), Half-Duplex Non-Orthogonal MARC (HD-NOMARC), and Full-Duplex Non-Orthogonal MARC (FD-NOMARC) have been introduced and studied. The relaying function in all of the classes is based on a Selective Decode-and-Forward (SDF) strategy, which is individually implemented for each source, i.e, the relay forwards only a deterministic function of the error-free decoded messages. For each class, an information-theoretic analysis is conducted, and practical coding and decoding techniques are proposed. The proposed coding schemes, perform very close to the outage limit for both cases of HD-SOMARC and HD-NOMARC. Besides, in the case of HD-NOMARC, the optimal allocation of the transmission time to the relay is considered. It is also verified that exploiting multiple access interferences, either partially or totally, results in considerable gains for MARC compared to the existing interference-avoiding structures, even in the case of single receive antenna. In the second part of the thesis, the network model is extended by considering multiple relays which help multiple sources to communicate with a destination. A new class of Multiple Access Multiple Relay Channel (MAMRC), referred to as Half-Duplex Semi-Orthogonal MAMRC (HD-SOMAMRC) is then proposed and analyzed from both information theoretic and code design perspective. New practical JNCC schemes are proposed, in which binary channel coding and non binary network coding are combined, and they are shown to perform very close to the outage limit. Moreover, the optimal allocation of the transmission time to the sources and relays is considered. Finally, in the third part of the thesis, different ways of implementing cooperation, including practical relaying protocols are investigated for the half-duplex MARC with semi-orthogonal transmission protocol and in the case of JNCC. The hard SDF approach is compared with two Soft Decode and Forward (SoDF) relaying functions: one based on log a posterior probability ratios (LAPPRs) and the other based on Mean Square Error (MSE) estimate. It is then shown that SDF works well in most of the configurations and just in some extreme cases, soft relaying functions (based on LAPPR or MSE estimate) can slightly outperform the hard selective one.
Author : Dong Van Nguyen
Publisher :
ISBN 13 :
Total Pages : 298 pages
Book Rating : 4.:/5 (423 download)
Download or read book Network Coding for Multi-user Wireless Networks written by Dong Van Nguyen and published by . This book was released on 2010 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Until a few years ago, wireless-capable laptops were considered novelties by many. It is now hard to find a laptop or a hand-held computing device that is not wireless-ready. As wireless devices are becoming commodities, they have also become an indispensable part of the modern society. Not surprisingly, research in wireless communication has also been significantly advanced in the past decade, to accommodate the growing demand for these wireless devices and applications. Yet, many challenges remain in transmitting information reliably, timely, and efficiently over wireless channels. Unlike wired transmissions, wireless transmissions are subjected to limited bandwidth, and are much more susceptible to environmental noises such as fading and interferences. As a result, it is difficult to transmit information reliably at high data rates. The problem is further compounded by the strict requirements on maximum delay and minimum throughput imposed by current and future multimedia applications. That said, recent advances in coding techniques, communication protocols and architectures provide an optimistic view of future wireless networks that help proliferate high quality wireless multimedia applications. One significant advance in coding theory in the past decade is em Network Coding (NC). NC refers to the notion of mixing information from different flows at intermediate nodes in the network, and it has been shown to achieve throughput capacity. In this dissertation, we investigate NC theories and practical techniques for improving throughput and reducing delay of wireless networking applications. Specifically, the dissertation will focus on theoretical analysis of NC benefits and limitations as well as design of NC-based practical protocols for improving performance in a wireless access network such as Wi-Fi or WiMax. There are three main contributions of the dissertation. First, we propose a NC-based retransmission protocol for broadcasting information from a wireless base station to multiple users in a wireless access network. The proposed NC protocol exploits the special property of wireless transmissions that users in proximity, can listen to each other's transmissions to code the packets in such a way to increase every user throughputs. Both theoretical analysis and simulation results show a significant throughput gain when using the proposed NC protocol over the standard ARQ protocol. Second, we propose a NC-based packet scheduler at a wireless base station for delivering multimedia streams, particularly scalable video streams to multiple users in a wireless access network. We formulate the NC-based packet scheduler problem in the framework of Markov Decision Process (MDP) in which, packet delay, inter-dependency of packets, and different visual contributions of packet types are taken into account, to optimize for the overall visual qualities. We describe an optimal scheduler for transmitting scalable video streams to a small number of users. For a large number of users, we propose a heuristic, simulation-based algorithm for finding the near-optimal transmission policy. Third, we introduce Random Network Coding (RNC) techniques. More specifically, we present a prioritized RNC scheme for multimedia transmissions for multi-user in a wireless access network. We then study a real-world implementation of RNC. We describe the step-by-step design of encoding and decoding modules of RNC and measure their computational rates.
Author : Christina Fragouli
Publisher : Now Publishers Inc
ISBN 13 : 1601980442
Total Pages : 150 pages
Book Rating : 4.6/5 (19 download)
Download or read book Network Coding Applications written by Christina Fragouli and published by Now Publishers Inc. This book was released on 2008-01-08 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Network Coding Applications looks at how ideas from network coding can have an impact on a number of new applications. It explains what network coding is, explores what its benefits are, and how much it costs to design and operate networks implementing network coding
Author : Mohammad Matin
Publisher : BoD – Books on Demand
ISBN 13 : 1789236142
Total Pages : 84 pages
Book Rating : 4.7/5 (892 download)
Download or read book Network Coding written by Mohammad Matin and published by BoD – Books on Demand. This book was released on 2018-08-22 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Network coding is an elegant and novel technique that allows nodes in the network to perform coding operations at the packet level. In particular, network coding represents a powerful approach to protect data from losses due to link disconnections and can also exploit the combination of multiple links to deliver data to users with the possibility of recoding at intermediate nodes. This phenomenon will reduce information congestion at some nodes or links, which will improve the network information flow such as to increase network throughput and robustness. This book is intended to provide the current R
Author : Muriel Medard
Publisher : Academic Press
ISBN 13 : 0123809185
Total Pages : 353 pages
Book Rating : 4.1/5 (238 download)
Download or read book Network Coding written by Muriel Medard and published by Academic Press. This book was released on 2012 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction -- Network coding Fundamentals -- Harnessing Network Coding in Wireless Systems -- Network Coding for Content Distribution and Multimedia Streaming in Peer-to-Peer Networks -- Network Coding in the Real World -- Network Coding and User Cooperation for Streaming and Download Services in LTE Networks -- CONCERTO: Experiences with a Real-World MANET System Based on Network Coding -- Secure Network Coding: Bounds and Algorithms for Secret and Reliable Communications -- Network Coding and Data Compression -- Scaling Laws with Network Coding -- Network Coding in Disruption Tolerant Networks.
Author : Jan Sykora
Publisher : Cambridge University Press
ISBN 13 : 1108636977
Total Pages : 337 pages
Book Rating : 4.1/5 (86 download)
Download or read book Wireless Physical Layer Network Coding written by Jan Sykora and published by Cambridge University Press. This book was released on 2018-02-15 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover a fresh approach for designing more efficient and cooperative wireless communications networks with this systematic guide. Covering everything from fundamental theory to current research topics, leading researchers describe a new, network-aware coding strategy that exploits the signal interactions that occur in dense wireless networks directly at the waveform level. Using an easy-to-follow, layered structure, this unique text begins with a gentle introduction for those new to the subject, before moving on to explain key information-theoretic principles and establish a consistent framework for wireless physical layer network coding (WPNC) strategies. It provides a detailed treatment of Network Coded Modulation, covers a range of WPNC techniques such as Noisy Network Coding, Compute and Forward, and Hierarchical Decode and Forward, and explains how WPNC can be applied to parametric fading channels, frequency selective channels, and complex stochastic networks. This is essential reading whether you are a researcher, graduate student, or professional engineer.
Author : Yanfei Fan
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (13 download)
Download or read book Network Coding Based Information Security in Multi-hop Wireless Networks written by Yanfei Fan and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Frank H. P. Fitzek
Publisher : John Wiley & Sons
ISBN 13 : 1118801407
Total Pages : 278 pages
Book Rating : 4.1/5 (188 download)
Download or read book Mobile Clouds written by Frank H. P. Fitzek and published by John Wiley & Sons. This book was released on 2013-12-11 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes a preface written by Professor Leonard Kleinrock, Distinguished Professor of Computer Science, UCLA, USA This book discusses and explores the concept of mobile cloud, creating an inspiring research space for exploiting opportunistic resource sharing, and covering from theoretical research approaches to the development of commercially profitable ideas. A mobile cloud is a cooperative arrangement of dynamically connected communication nodes sharing opportunistic resources. In this book, authors provide a comprehensive and motivating overview of this rapidly emerging technology. The book explores how distributed resources can be shared by mobile users in very different ways and for various purposes. The book provides many stimulating examples of resource-sharing applications. Enabling technologies for mobile clouds are also discussed, highlighting the key role of network coding. Mobile clouds have the potential to enhance communications performance, improve utilization of resources and create flexible platforms to share resources in very novel ways. Energy efficient aspects of mobile clouds are discussed in detail, showing how being cooperative can bring mobile users significant energy saving. The book presents and discusses multiple examples of mobile clouds applications, based on both existing commercial initiatives as well as proof-of-concept test-beds. Visions and prospects are also discussed, paving the way for further development. As mobile networks and social networks become more and more reliant on each other, the concept of resource sharing takes a wider and deeper meaning, creating the foundations for a global real-time multidimensional resource pool, the underlying infrastructure for shareconomy. Above all, this is an inspiring book for anyone who is concerned about the future of wireless and mobile communications networks and their relationship with Social networks. Key Features: Provides fundamental ideas and promising concepts for exploiting opportunistic cooperation and cognition in wireless and mobile networks Gives clear definitions of mobile clouds from different perspectives Associates mobile and wireless networks with social networks, creating a vast fertile ground for novel developments in both research and practical applications Considers research directions, emerging trends and visions This book is an excellent resource for wireless/networking researchers in industry and academia, students and mobile phone programmers. Managers interested in new technology developments, service providers, network operators, and those working in the gaming industry will also find the book insightful.
