Good Trellises For Ic Implementation Of Viterbi Decoders For Linear Block Codes

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Good Trellises for IC Implementation of Viterbi Decoders for Linear Block Codes

Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722260712
Total Pages : 32 pages
Book Rating : 4.2/5 (67 download)

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Book Synopsis Good Trellises for IC Implementation of Viterbi Decoders for Linear Block Codes by : National Aeronautics and Space Administration (NASA)

Download or read book Good Trellises for IC Implementation of Viterbi Decoders for Linear Block Codes written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-05 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper investigates trellis structures of linear block codes for the IC (integrated circuit) implementation of Viterbi decoders capable of achieving high decoding speed while satisfying a constraint on the structural complexity of the trellis in terms of the maximum number of states at any particular depth. Only uniform sectionalizations of the code trellis diagram are considered. An upper bound on the number of parallel and structurally identical (or isomorphic) subtrellises in a proper trellis for a code without exceeding the maximum state complexity of the minimal trellis of the code is first derived. Parallel structures of trellises with various section lengths for binary BCH and Reed-Muller (RM) codes of lengths 32 and 64 are analyzed. Next, the complexity of IC implementation of a Viterbi decoder based on an L-section trellis diagram for a code is investigated. A structural property of a Viterbi decoder called ACS-connectivity which is related to state connectivity is introduced. This parameter affects the complexity of wire-routing (interconnections within the IC). The effect of five parameters namely: (1) effective computational complexity; (2) complexity of the ACS-circuit; (3) traceback complexity; (4) ACS-connectivity; and (5) branch complexity of a trellis diagram on the VLSI complexity of a Viterbi decoder is investigated. It is shown that an IC implementation of a Viterbi decoder based on a non-minimal trellis requires less area and is capable of operation at higher speed than one based on the minimal trellis when the commonly used ACS-array architecture is considered. Lin, Shu and Moorthy, Hari T. and Uehara, Gregory T. Goddard Space Flight Center NAG5-2938...

Trellises and Trellis-Based Decoding Algorithms for Linear Block Codes

Author : Shu Lin
Publisher : Springer Science & Business Media
ISBN 13 : 1461557453
Total Pages : 290 pages
Book Rating : 4.4/5 (615 download)

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Book Synopsis Trellises and Trellis-Based Decoding Algorithms for Linear Block Codes by : Shu Lin

Download or read book Trellises and Trellis-Based Decoding Algorithms for Linear Block Codes written by Shu Lin and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the demand for data reliability increases, coding for error control becomes increasingly important in data transmission systems and has become an integral part of almost all data communication system designs. In recent years, various trellis-based soft-decoding algorithms for linear block codes have been devised. New ideas developed in the study of trellis structure of block codes can be used for improving decoding and analyzing the trellis complexity of convolutional codes. These recent developments provide practicing communication engineers with more choices when designing error control systems. Trellises and Trellis-based Decoding Algorithms for Linear Block Codes combines trellises and trellis-based decoding algorithms for linear codes together in a simple and unified form. The approach is to explain the material in an easily understood manner with minimal mathematical rigor. Trellises and Trellis-based Decoding Algorithms for Linear Block Codes is intended for practicing communication engineers who want to have a fast grasp and understanding of the subject. Only material considered essential and useful for practical applications is included. This book can also be used as a text for advanced courses on the subject.

Information Theory and Applications II

Author : Jean-Yves Chouinard
Publisher : Springer Science & Business Media
ISBN 13 : 9783540617488
Total Pages : 328 pages
Book Rating : 4.6/5 (174 download)

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Book Synopsis Information Theory and Applications II by : Jean-Yves Chouinard

Download or read book Information Theory and Applications II written by Jean-Yves Chouinard and published by Springer Science & Business Media. This book was released on 1996-09-25 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed postworkshop proceedings of the Fourth Canadian Workshop on Information Theory, held in Lac Delage, Quebec, in May 1995. The book contains 18 revised full papers selected from 30 workshop presentations; also included are three invited contributions. The book is divided into sections on algebraic coding, cryptography and secure communications, decoding methods and techniques, coding and modulation for fading channels, and signal processing and pattern recognition.

Information, Coding and Mathematics

Author : Mario Blaum
Publisher : Springer Science & Business Media
ISBN 13 : 1475735855
Total Pages : 380 pages
Book Rating : 4.4/5 (757 download)

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Book Synopsis Information, Coding and Mathematics by : Mario Blaum

Download or read book Information, Coding and Mathematics written by Mario Blaum and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Information, Coding and Mathematics is a classic reference for both professional and academic researchers working in error-correction coding and decoding, Shannon theory, cryptography, digital communications, information security, and electronic engineering. The work represents a collection of contributions from leading experts in turbo coding, cryptography and sequences, Shannon theory and coding bounds, and decoding theory and applications. All of the contributors have individually and collectively dedicated their work as a tribute to the outstanding work of Robert J. McEliece. Information, Coding and Mathematics covers the latest advances in the widely used and rapidly developing field of information and communication technology.

Monthly Catalog of United States Government Publications

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (891 download)

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Book Synopsis Monthly Catalog of United States Government Publications by :

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1998-07 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

IEEE International Symposium on Information Theory

Author :
Publisher :
ISBN 13 :
Total Pages : 522 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis IEEE International Symposium on Information Theory by :

Download or read book IEEE International Symposium on Information Theory written by and published by . This book was released on 1998 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Performance Driven VLSI System Design for Low Energy Wireless Communications

Author : Sangjin Hong
Publisher :
ISBN 13 :
Total Pages : 330 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Performance Driven VLSI System Design for Low Energy Wireless Communications by : Sangjin Hong

Download or read book Performance Driven VLSI System Design for Low Energy Wireless Communications written by Sangjin Hong and published by . This book was released on 2000 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:

NASA Tech Briefs

Author :
Publisher :
ISBN 13 :
Total Pages : 870 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis NASA Tech Briefs by :

Download or read book NASA Tech Briefs written by and published by . This book was released on 1996 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Proceedings, ... IEEE International Symposium on Information Theory

Author :
Publisher :
ISBN 13 :
Total Pages : 520 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Proceedings, ... IEEE International Symposium on Information Theory by :

Download or read book Proceedings, ... IEEE International Symposium on Information Theory written by and published by . This book was released on 1998 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Conference Record

Author :
Publisher :
ISBN 13 :
Total Pages : 820 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Conference Record by :

Download or read book Conference Record written by and published by . This book was released on 2001 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Government Reports Announcements & Index

Author :
Publisher :
ISBN 13 :
Total Pages : 618 pages
Book Rating : 4.3/5 (243 download)

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Book Synopsis Government Reports Announcements & Index by :

Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1996 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Electrical & Electronics Abstracts

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Publisher :
ISBN 13 :
Total Pages : 1860 pages
Book Rating : 4.3/5 (243 download)

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Download or read book Electrical & Electronics Abstracts written by and published by . This book was released on 1997 with total page 1860 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Trellises and Trellis-Based Decoding Algorithms for Linear Block Codes

Author : National Aeronautics and Space Adm Nasa
Publisher : Independently Published
ISBN 13 : 9781728906249
Total Pages : 26 pages
Book Rating : 4.9/5 (62 download)

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Book Synopsis Trellises and Trellis-Based Decoding Algorithms for Linear Block Codes by : National Aeronautics and Space Adm Nasa

Download or read book Trellises and Trellis-Based Decoding Algorithms for Linear Block Codes written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-10-18 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Decoding algorithms based on the trellis representation of a code (block or convolutional) drastically reduce decoding complexity. The best known and most commonly used trellis-based decoding algorithm is the Viterbi algorithm. It is a maximum likelihood decoding algorithm. Convolutional codes with the Viterbi decoding have been widely used for error control in digital communications over the last two decades. This chapter is concerned with the application of the Viterbi decoding algorithm to linear block codes. First, the Viterbi algorithm is presented. Then, optimum sectionalization of a trellis to minimize the computational complexity of a Viterbi decoder is discussed and an algorithm is presented. Some design issues for IC (integrated circuit) implementation of a Viterbi decoder are considered and discussed. Finally, a new decoding algorithm based on the principle of compare-select-add is presented. This new algorithm can be applied to both block and convolutional codes and is more efficient than the conventional Viterbi algorithm based on the add-compare-select principle. This algorithm is particularly efficient for rate 1/n antipodal convolutional codes and their high-rate punctured codes. It reduces computational complexity by one-third compared with the Viterbi algorithm. Lin, Shu Goddard Space Flight Center NAG5-931; NAG5-2938

Scientific and Technical Aerospace Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 486 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Wireless Connectivity

Author : Petar Popovski
Publisher : John Wiley & Sons
ISBN 13 : 1119577004
Total Pages : 410 pages
Book Rating : 4.1/5 (195 download)

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Book Synopsis Wireless Connectivity by : Petar Popovski

Download or read book Wireless Connectivity written by Petar Popovski and published by John Wiley & Sons. This book was released on 2020-02-12 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wireless Connectivity: An Intuitive and Fundamental Guide Wireless connectivity has become an indispensable part, a commodity associated with the way we work and play. The latest developments, the 5G, next-generation Wi-Fi and Internet of Things connectivity, are the key enablers for widespread digitalization of practically all industries and public sector segments. This immense development within the last three decades have been accompanied by a large number of ideas, articles, patents, and even myths. This book introduces the most important ideas and concepts in wireless connectivity and discusses how these are interconnected, whilst the mathematical content is kept minimal. The book does not follow the established, linear structure in which one starts from the propagation and channels and then climbs up the protocol layers. The structure is, rather, nonlinear, in an attempt to follow the intuition used when one creates a new technology to solve a certain problem. The target audience is: Students in electronics, communication, and networking Wireless engineers that are specialized in one area, but want to know how the whole system works, without going through all the details and math Computer scientists that want to understand the fundamentals of wireless connectivity, the requirements and, most importantly, the limitations Engineers in energy systems, logistics, transport and other vertical sectors that are increasingly reliant on wireless technology

Applied Science & Technology Index

Author :
Publisher :
ISBN 13 :
Total Pages : 2948 pages
Book Rating : 4.:/5 (4 download)

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Book Synopsis Applied Science & Technology Index by :

Download or read book Applied Science & Technology Index written by and published by . This book was released on 1997 with total page 2948 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Encyclopedia of Information Science and Technology, Fifth Edition

Author : Khosrow-Pour D.B.A., Mehdi
Publisher : IGI Global
ISBN 13 : 1799834808
Total Pages : 1966 pages
Book Rating : 4.7/5 (998 download)

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Book Synopsis Encyclopedia of Information Science and Technology, Fifth Edition by : Khosrow-Pour D.B.A., Mehdi

Download or read book Encyclopedia of Information Science and Technology, Fifth Edition written by Khosrow-Pour D.B.A., Mehdi and published by IGI Global. This book was released on 2020-07-24 with total page 1966 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rise of intelligence and computation within technology has created an eruption of potential applications in numerous professional industries. Techniques such as data analysis, cloud computing, machine learning, and others have altered the traditional processes of various disciplines including healthcare, economics, transportation, and politics. Information technology in today’s world is beginning to uncover opportunities for experts in these fields that they are not yet aware of. The exposure of specific instances in which these devices are being implemented will assist other specialists in how to successfully utilize these transformative tools with the appropriate amount of discretion, safety, and awareness. Considering the level of diverse uses and practices throughout the globe, the fifth edition of the Encyclopedia of Information Science and Technology series continues the enduring legacy set forth by its predecessors as a premier reference that contributes the most cutting-edge concepts and methodologies to the research community. The Encyclopedia of Information Science and Technology, Fifth Edition is a three-volume set that includes 136 original and previously unpublished research chapters that present multidisciplinary research and expert insights into new methods and processes for understanding modern technological tools and their applications as well as emerging theories and ethical controversies surrounding the field of information science. Highlighting a wide range of topics such as natural language processing, decision support systems, and electronic government, this book offers strategies for implementing smart devices and analytics into various professional disciplines. The techniques discussed in this publication are ideal for IT professionals, developers, computer scientists, practitioners, managers, policymakers, engineers, data analysts, and programmers seeking to understand the latest developments within this field and who are looking to apply new tools and policies in their practice. Additionally, academicians, researchers, and students in fields that include but are not limited to software engineering, cybersecurity, information technology, media and communications, urban planning, computer science, healthcare, economics, environmental science, data management, and political science will benefit from the extensive knowledge compiled within this publication.