Bandwidth And Rate Allocation Tradeoffs Of Source
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Bandwidth And Rate Allocation Tradeoffs Of Source
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Author : Suayb S. Arslan
language : en
Publisher:
Release Date : 2012
Bandwidth And Rate Allocation Tradeoffs Of Source written by Suayb S. Arslan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
A conventional approach to the design of wireless multimedia communications is the layered approach, in which the network layers function independent of each other. This kind of layered approach is inspired partly by Shannon's separation theorem in which the optimization of each block is equivalent to optimization of the overall source-channel coding operation. However, the separation theorem is valid only in a point-to-point communication scenario in the case of asymptotically long block lengths of data and assumes huge amounts of processing power and delay. Therefore, current practical communication systems strive to jointly design building blocks of a multimedia system for better performance. The focus of this dissertation is therefore to present various joint designs for different channel models and systems, although limited by physical constraints such as bandwidth, power and complexity. First, a robust coded scheme for progressive multimedia transmission is considered for an additive white Gaussian noise channel, a Rayleigh fading channel, and a frequency selective channel using in combination different unequal protection methods. We investigate the judicious use of the limited bandwidth through the combination and optimization of a progressive source coder, a rate compatible punctured convolutional code and a hierarchical modulation. Next, we investigate a novel packet formatting scheme for progressive sources using interleavers and various channel codes. The source coder is combined with a concatenated block coding mechanism to produce a robust transmission system for embedded bit streams. The objective is to create embedded codewords such that, for a particular information block, the necessary protection is obtained via multiple channel codings, contrary to the conventional methods which use a single code rate per information block. We show that near capacity performance can be achieved using the proposed scheme in conjunction with low density parity check codes in a binary symmetric channel scenario. We initially focus on coding strategies for multimedia where the channel state information is missing. A generalized Digital Fountain (DF) code is proposed to provide efficient universal forward error correction solution for lossy packet networks with increased unequal error protection and unequal recovery time properties. We propose a progressive source transmission system using this generalized code design. We apply the generalized DF code to a progressive source and show that it has better unequal protection and recovery time properties than other published results.
Bandwidth Allocation And Tradeoffs Of Source Coding Channel Coding And Spreading In Cdma Systems
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Author : Qinghua Zhao
language : en
Publisher:
Release Date : 2004
Bandwidth Allocation And Tradeoffs Of Source Coding Channel Coding And Spreading In Cdma Systems written by Qinghua Zhao and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
Optimal Resource Allocation For Distributed Video Communication
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Author : Yifeng He
language : en
Publisher: CRC Press
Release Date : 2016-04-19
Optimal Resource Allocation For Distributed Video Communication written by Yifeng He and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-04-19 with Computers categories.
While most books on the subject focus on resource allocation in just one type of network, this book is the first to examine the common characteristics of multiple distributed video communication systems. Comprehensive and systematic, Optimal Resource Allocation for Distributed Video Communication presents a unified optimization framework for resour
Signal Processing For Wireless Communication Systems
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Author : H. Vincent Poor
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-01-19
Signal Processing For Wireless Communication Systems written by H. Vincent Poor and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-01-19 with Science categories.
Signal Processing for Wireless Communication Systems brings together in one place important contributions and up-to-date research results in this fast moving area. The Contributors to this work were selected from leading researchers and practitioners in this field. The book's 18 chapters are divided into three areas: systems, Networks, and Implementation Issues; Channel Estimation and Equalization; and Multiuser Detection. The Work, originally published as Volume 30, Numbers 1-3 of the Journal of VLSI Signal Processing Systems for Signal, Image, and Video Technology, will be valuable to anyone working or researching in the field of wireless communication systems. It serves as an excellent reference, providing insight into some of the most challenging issues being examined today.
Bandwidth Allocation For Video Under Quality Of Service Constraints
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Author : Bushra Anjum
language : en
Publisher: John Wiley & Sons
Release Date : 2014-12-09
Bandwidth Allocation For Video Under Quality Of Service Constraints written by Bushra Anjum and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-12-09 with Technology & Engineering categories.
We present queueing-based algorithms to calculate the bandwidth required for a video stream so that the three main Quality of Service constraints, i.e., end-to-end delay, jitter and packet loss, are ensured. Conversational and streaming video-based applications are becoming a major part of the everyday Internet usage. The quality of these applications (QoS), as experienced by the user, depends on three main metrics of the underlying network, namely, end-to-end delay, jitter and packet loss. These metrics are, in turn, directly related to the capacity of the links that the video traffic traverses from its source to destination. The main problem that this book addresses is how much bandwidth we should allocate on the path from source to destination of a video traffic flow such that the end-to-end delay, jitter and packet loss of the video packets are within some expected required bounds.
Cross Layer Bandwidth Allocation And Delay Allocation For Video Transmission Over Wireless Channels
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Author : Yushi Shen
language : en
Publisher:
Release Date : 2006
Cross Layer Bandwidth Allocation And Delay Allocation For Video Transmission Over Wireless Channels written by Yushi Shen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
This dissertation proposes both coding schemes and system design strategies for video wireless communications. Video coding can benefit greatly from the development of algorithms for optimal intra/inter mode switching within a rate-distortion framework. We propose an algorithm to optimally switch between intra-coding and inter-coding modes for a video coder that operates on a packet-switched network with fixed-length packets. This optimal mode selection algorithm is integrated with an efficient channel encoder. And the framework is further extended to operate on a time-varying tandem wiredline-wireless channel with feedback information from the receiver. We then discuss a cross-layer optimization scheme for the system design of a wireless video communications system. We present a video transmission scheme with adaptive bandwidth allocation over wired and wireless CDMA networks. We derive the statistics of the received signal, as well as a theoretical bound on the packet drop rate at the receiver. Based on these results, an algorithm for efficient bandwidth allocation among source coding, channel coding and spreading is derived at the packet level, which incorporates the effects of both the changing channel characteristics and the source content. Another fundamental tradeoff in the cross-layer design of a communications system that we study is how to optimize the system when there is a delay constraint imposed by the application. The key elements in this tradeoff are the queuing delay in the source encoder output buffer, the delay caused by the interleaver, and the delay caused by channel decoding.
Data Communications And Their Performance
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Author : Serge Fdida
language : en
Publisher: Springer
Release Date : 2013-06-29
Data Communications And Their Performance written by Serge Fdida and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-29 with Technology & Engineering categories.
This is the sixth conference in the series which started in 1981 in Paris, followed by conferences held in Zurich (1984), Rio de Janeirio (1987), Barcelona (1991), and Raleigh (1993). The main objective of this IFIP conference series is to provide a platform for the exchange of recent and original contributions in communications systems in the areas of performance analysis, architectures, and applications. There are many exiciting trends and developments in the communications industry, several of which are related to advances in Asynchronous Transfer Mode·(ATM), multimedia services, and high speed protocols. It is commonly believed in the communications industry that ATM represents the next generation of networking. Yet, there are a number of issues that has been worked on in various standards bodies, government and industry research and development labs, and universities towards enabling high speed networks in general and ATM networks in particular. Reflecting these trends, the technical program of the Sixth IFIP W.G. 6.3 Conference on Performance of Computer Networks consists of papers addressing a wide range of technical challenges and proposing various state of the art solutions to a subset of them. The program includes 25 papers selected by the program committee out of 57 papers submitted.
Bandwidth Allocation And Source Identification
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Author : Andrew Koyfman
language : en
Publisher:
Release Date : 2000
Bandwidth Allocation And Source Identification written by Andrew Koyfman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
Protocols For High Speed Networks
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Author : Georg Carle
language : en
Publisher: Springer
Release Date : 2003-08-01
Protocols For High Speed Networks written by Georg Carle and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-08-01 with Computers categories.
This workshop on “Protocols for High-Speed Networks” is the seventh in a s- cessful series of international workshops, well known for their small and focused target audience, that provide a sound basis for intensive discussions of hi- qualityand timelyresearch work. The location of the workshop has alternated between Europe and the United States, at venues not onlyworth visiting for the workshop, but also for the distinct impressions theyleave on the participants. The ?rst workshop was held in 1989 in Zurich. Subsequentlythe workshop was moved to Palo Alto (1990), Stockholm (1993), Vancouver (1994), Sophia-Antipolis/Nice (1996), and Salem (1999). In 2002, the workshop was hosted in Berlin, the capital of Germany. PfHSN is a workshop providing an international forum that focuses on issues related to high-speed networking, such as protocols, implementation techniques, router design, network processors and the like. Although the topics have shifted during the last couple of years, for example, from parallel protocol implemen- tions to network processors, it could be observed that high speed remains a very important issue with respect to future networking. Traditionally, PfHSN is a r- ativelyfocused and small workshop with an audience of about 60 participants.
Resource Allocation And Performance Optimization In Communication Networks And The Internet
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Author : Liansheng Tan
language : en
Publisher: CRC Press
Release Date : 2017-08-15
Resource Allocation And Performance Optimization In Communication Networks And The Internet written by Liansheng Tan and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-08-15 with Technology & Engineering categories.
This book provides a comprehensive introduction to the underlying theory, design techniques and analytical results of wireless communication networks, focusing on the core principles of wireless network design. It elaborates the network utility maximization (NUM) theory with applications in resource allocation of wireless networks, with a central aim of design and the QoS guarantee. It presents and discusses state-of-the-art developments in resource allocation and performance optimization in wireless communication networks. It provides an overview of the general background including the basic wireless communication networks and the relevant protocols, architectures, methods and algorithms.