Implementation and Evaluation of a Threshold Decodable Code for Error Correction PDF Download

Author: Rayfield Kenneth Wert
Publisher:
ISBN:
Category :
Languages : en
Pages : 130

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Author: George C. Clark Jr.
Publisher: Springer Science & Business Media
ISBN: 9780306406157
Category : Technology & Engineering
Languages : en
Pages : 452

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Book Description
Error-correction coding is being used on an almost routine basis in most new communication systems. Not only is coding equipment being used to increase the energy efficiency of communication links, but coding ideas are also providing innovative solutions to many related communication problems. Among these are the elimination of intersymbol interference caused by filtering and multipath and the improved demodulation of certain frequency modulated signals by taking advantage of the "natural" coding provided by a continuous phase. Although several books and nu merous articles have been written on coding theory, there are still noticeable deficiencies. First, the practical aspects of translating a specific decoding algorithm into actual hardware have been largely ignored. The information that is available is sketchy and is widely dispersed. Second, the information required to evaluate a particular technique under situations that are en countered in practice is available for the most part only in private company reports. This book is aimed at correcting both of these problems. It is written for the design engineer who must build the coding and decoding equipment and for the communication system engineer who must incorporate this equipment into a system. It is also suitable as a senior-level or first-year graduate text for an introductory one-semester course in coding theory. The book U"Ses a minimum of mathematics and entirely avoids the classical theorem/proof approach that is often seen in coding texts.

Author: Rino Micheloni
Publisher: Springer Science & Business Media
ISBN: 1402083912
Category : Technology & Engineering
Languages : en
Pages : 338

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Nowadays it is hard to find an electronic device which does not use codes: for example, we listen to music via heavily encoded audio CD's and we watch movies via encoded DVD's. There is at least one area where the use of encoding/decoding is not so developed, yet: Flash non-volatile memories. Flash memory high-density, low power, cost effectiveness, and scalable design make it an ideal choice to fuel the explosion of multimedia products, like USB keys, MP3 players, digital cameras and solid-state disk. In ECC for Non-Volatile Memories the authors expose the basics of coding theory needed to understand the application to memories, as well as the relevant design topics, with reference to both NOR and NAND Flash architectures. A collection of software routines is also included for better understanding. The authors form a research group (now at Qimonda) which is the typical example of a fruitful collaboration between mathematicians and engineers.

Author: Naval Research Laboratory (U.S.)
Publisher:
ISBN:
Category : Naval research
Languages : en
Pages : 666

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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 750

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Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Author: Brian J. Malley
Publisher:
ISBN: 9781369339291
Category : Error-correcting codes (Information theory)
Languages : en
Pages : 72

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Abstract: Soft errors caused by radiation are a common problem in spaceflight due to the intense radiation environment of space. Single Error Correction (SEC) Error Correcting Codes (ECCs) are a traditional approach to solve this problem, but with the increasing density of IC architectures, multiple-bit errors are becoming more common. Double Error Correction (DEC) ECCs are costly, but codes between DEC and SEC, which take advantage of the spatial locality of bit errors and correct only adjacent double-bit errors, have been found by others. In this thesis, one of those codes is implemented and evaluated on a Spartan-6 FPGA. The results of several error trials are presented herein, along with implementation details, including the source code. Tables of the trial results and the specific FPGA resources used are also presented. The implementation is found to have a non-negligible area cost, but low latency cost. Another implementation of this same ECC with potentially low area but high latency is also described. When errors well beyond the ECC's capability, such as multiple single-bit errors, or four-bit errors, are injected, around 30% of the time the code erroneously claims to have fixed an error. In these same circumstances, however, the ECC implementation hardly ever (0.2%) claims that no error has occurred. This suggests that a simple extension to a more conservative ECC which flushes data on any error could be used in situations with error rates that surpass the ECC's capability to maintain data integrity.

Author: William Wesley Peterson
Publisher: MIT Press
ISBN: 9780262160391
Category : Computers
Languages : en
Pages : 584

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The coding problem; Introduction to algebra; Linear codes; Error correction capabilities of linear codes; Important linear block codes; Polynomial rings and galois fields; Linear switching circuits; Cyclic codes; Bose-chaudhuri-hocquenghem codes; Arithmetic codes.

Author: Man Young Rhee
Publisher: McGraw-Hill Companies
ISBN:
Category : Computers
Languages : en
Pages : 488

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Author: Florence Jessie MacWilliams
Publisher: North Holland
ISBN:
Category : Computers
Languages : en
Pages : 794

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Author: Nichigai Asoshiētsu
Publisher:
ISBN:
Category : Electric engineering
Languages : en
Pages : 1156

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