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Performance Analysis of Convolutional CODEC for Distributed and Burst Errors

S.V. Viraktamath, Dr. Girish V. Attimarad


Viterbi Decoders are employed frequently in wireless digital communication systems. Many digital communication channels are affected by distributed and burst errors. In this paper the performance analysis of Convolutional encoder and Decoder (CODEC) for the distributed errors and burst errors is done, considering different constraint lengths, generator polynomials. The hard decision with ½ rate coding technique is considered in this paper. Performance analysis in terms of error correction capability of CODEC is shown through VHDL simulation.


Burst Errors, Decoder (VD), Distributed Errors, Scrambling Interleaver, Trellis Diagram.

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C.E. Shannon, “A mathematical theory of communication”, Bell System. Technical Journal Vol. 27, pp. 379-423 (part I) and pp. 623-656 (part II), July 1948

A.J. Viterbi, “Convolutional codes and their performance in communication systems”, IEEE Transaction Communication Technology, Vol.19, pp. 751-772, Oct. 1971.

J.H. Yuen, “Modulation and Coding for Satellite and Space Communications”, IEEE Proceedings, Vol. 78, No. 7, pp. 1250-1266, July 1990

B. Sklar, Digital Communications: “Fundamentals and Applications”, 2nd edition, Prentice-Hall, Upper Saddle River, N J, 2001.

G.C. Clark Jr. and J.B. Cain, “Error-Correction Coding for Digital Communications”, Plenum Press, NY, 1981

A.J. Viterbi and J.K. Omura, “Principles of Digital Communications and Coding”, McGraw-Hill, NY, 1979

A.J. Viterbi, “Error Bounds for Convolutional Codes and an Asymptotically Optimum Decoding Algorithm”, IEEE. Transaction of Information Theory, vol. IT-13, pp. 260-269, Apr. 1967

Hema .S, Suresh babu .V, Ramesh .P “FPGA Implementation of Viterbi Decoder” Proceedings of the 6th WSEAS Int. Conf. on Electronics, Hardware, Wireless and Optical Communications, Corfu Island, Greece, February 16-19, 2007 page no 162

Jeich Mar. Senior Member, IEEE, Chi-Chenng KnL “Performance Improvement of a High Mobility Vehicular Communication Systemn Using Fuzy-Decision Viterbi Decoder” 2006 6th International Conference on ITS Telecommunications Proceedings page 1083

Abdul Fattah Mohammad Obeid, Alberto Garc´ıa Ortiz, Ralf Ludewig and Manfred Glesner “Prototyping of a High Performance Generic Viterbi Decoder”, Proceedings of 13 th IEEE International Workshop on Rapid System Prototyping (RSP‟02) 2002

Shuji Kubota, Shuzo Kato and Tsunehachi Ishitan, “Novel Viterbi Decoder VLSI Implementation and its Performance” IEEE Transactions on Communications, vol. 41, No. 8, august 1993

Hari T. Moorthy, Shu Lin, and Gregory T. Uehara “Good Trellises for IC Implementation of Viterbi Decoders for Linear Block Codes”, IEEE transactions on communications, vol. 45, No. 1, January 1997


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