9780470665206

This book provides a cutting edge explanation of VLC codings and their future developments .Near-Capacity Variable-Length Coding examines the topic in the context of digital multimedia broadcast telecommunications. Providing insight into VLC coding's applications, characteristics and performance, the book addresses the latest research in the area. Using novel experiments, it systematically introduces Irregular Variable Length Coding (IrVLC), its function in joint source and channel coding, employment to facilitate Unequal Error Protection (UEP) and application to near-capacity operation using Extrinsic Information Transfer (EXIT) chart analysis. Having introduced the topic thoroughly, the mid section is devoted to the authors' latest techniques, outlining and explaining concepts such as Genetic Algorithm (GA), constructing both RVLCs and VLEC codes and EXIT modules. The book concludes with a chapter on future work on the topic.- Provides an exhaustive treatment of variable length coding systems and their application to error-prone transmission systems- One of the first titles to address the subject in such depth, including latest research results- Topics include: the effect of different free distances of the source codes; vector quantised RVLC-TCM scheme and EXIT systems

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Lajos Hanzo University of Southampton, UK
Lajos Hanzo has held various research and academic posts in Hungary, Germany and the UK. Since 1986 he has been with the School of Electronics and Computer Science, University of Southampton, UK and has been a consultant to Multiple Access Communications Ltd., UK. He currently holds the established Chair of Telecommunications. He co-authored 17 Wiley/IEEE Press books on mobile radio communications and published in excess of 800 research papers.

Robert G. Maunder, University of Southampton, UK
Robert G. Maunder has studied with the School of Electronics and Computer Science, University of Southampton, UK, since October 2000. His research interests include video coding, joint source/channel coding and iterative decoding. In 2007 he was appointed a lecturer in the School of ECS, Univ. of Southampton.

Jin Wang, Aeroflex, UK
Jin Wang recently joined Aeroflex, Cambridge, UK. His research interests include video coding, channel coding, joint source/channel coding, and iterative detection and decoding for digital communication systems. He published numerous IEEE journal and conference papers on related topics.

Lie-Liang Yang, University of Southampton, UK
Lie-Liang Yang works in the School of Electronics and Computer Science, University of Southampton, UK, and currently holds the academic post of Readership. Dr. Yang's research has covered a wide range of topics in wireless communications, networking and signal processing. He has published over 200 research papers in journals and conference proceedings, authored/co-authored two books and also published several book chapters.

About the Authors
Other Wiley and IEEE Press Books on Related Topics
Acknowledgments
Preface
Introduction
Historical Overview
Applications of Irregular Variable Length Coding
Motivation and Methodology
Outline of the Book
Novel Contributions of the Book
Information Theory Basics
Issues in Information Theory
AdditiveWhite Gaussian Noise Channel
Information of a Source
Average Information of Discrete Memoryless Sources
Source Coding for a Discrete Memoryless Source
Entropy of Discrete Sources Exhibiting Memory
Examples
Generating Model Sources
Run-Length Coding for Discrete Sources Exhibiting Memory
Information Transmission via Discrete Channels
Capacity of Discrete Channels
Shannon's Channel Coding Theorem
Capacity of Continuous Channels
Shannon's Message for Wireless Channels
Summary and Conclusions
I Regular Concatenated Codes and Their Design
List of Symbols in Part I
Sources and Source Codes
Introduction
Source Models
Source Codes
Soft-Decoding of Variable Length Codes
Summary and Conclusions
Iterative Source/Channel Decoding
Concatenated Coding and the Turbo Principle
SISO APP Decoders and Their EXIT Characteristics
Iterative Source/Channel Decoding Over AWGN Channels
Iterative Channel Equalisation, Channel Decoding and Source Decoding
Summary and Conclusions
Three-Stage Serially Concatenated Turbo Equalisation
Introduction
Soft-in/Soft-outMMSE Equalisation
Turbo Equalisation Using MAP/MMSE Equalisers
Three-stage serially concatenated coding and MMSE equalisation
Approaching the Channel Capacity Using EXIT-Chart Matching and IRCCs
Rate-Optimisation of Serially Concatenated Codes
Joint Source-Channel Turbo Equalisation Revisited
Summary and Conclusions
Irregular Concatenated VLCs and Their Design
List of Symbols in Part II
Irregular Variable Length Codes for Joint Source and Channel Coding
Introduction
Overview of proposed scheme
Transmission frame structure
VDVQ/RVLC encoding
APP SISO VDVQ/RVLC decoding
Simulation results
Summary and Conclusions
Irregular Variable Length Codes for EXIT Chart Matching
Introduction
Overview of proposed schemes
Parameter design for the proposed schemes
Simulation results
Summary and Conclusions
Genetic Algorithm Aided Design of Irregular Variable Length Coding Components
Introduction
The free distance metric
Overview of the proposed genetic algorithm
Overview of proposed scheme
Parameter design for the proposed scheme
Simulation results
Summary and Conclusions
Joint EXIT Chart Matching of Irregular Variable Length Coding and Irregular
Unity Rate Coding
Introduction
Modifications of the EXIT chart matching algorithm
Joint EXIT chart matching
Overview of the transmission scheme considered
System parameter design
Simulation results
Summary and Conclusions
Applications of VLCs
Iteratively Decoded VLC Space-Time Coded Modulation
Introduction
Space Time Coding Overview
Two-Dimensional VLC Design
VL-STCM Scheme
VL-STCM-ID Scheme
Convergence Analysis
Simulation results
Conclusions
Iterative Detection of Three-Stage Concatenated IrVLC FFH-MFSK
Introduction
System Overview
Iterative decoding
System parameter design and Results
Conclusion
Conclusions and Future Research
Chapter 1: Introduction
Chapter 2: Information Theory Basics
Chapter 3: Sources and Source Codes
Chapter 4: Iterative Source/Channel Decoding
Chapter 5: Three-Stage Serially Concatenated Turbo Equalisation
Chapter 6: Joint source and channel coding
Chapters 7 - 9: EXIT chart matching
Chapter 8: GA-aided Design of Irregular VLC Components
Chapter 9: Joint EXIT Chart Matching of IRVLCs and IRURCs
Chapter 10: Iteratively Decoded VLC Space-Time Coded Modulation
Chapter 11: Iterative Detection of Three-Stage Concatenated IrVLC FFHMFSK
Future work
Closing remarks
VLC Construction Algorithms
RVLC Construction Algorithm A
RVLC Construction Algorithm B
Greedy Algorithm (GA) and Majority Voting Algorithm (MVA)
SISO VLC Decoder
APP Channel Equalisation
Bibliography
Glossary
Subject Index
Author Index
Table of Contents provided by Publisher. All Rights Reserved.

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Near-Capacity Variable-Length Coding Regular and EXIT-Chart-Aided Irregular Designs

Near-Capacity Variable-Length Coding Regular and EXIT-Chart-Aided Irregular Designs

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