A modified Blahut algorithm for decoding Reed-Solomon codes beyond the half the minimum distance

Egorov, S. and Markarian, G. and Pickavance, K. (2004) A modified Blahut algorithm for decoding Reed-Solomon codes beyond the half the minimum distance. IEEE Transactions on Communications, 52 (12). pp. 2052-2056. ISSN 0090-6778

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Abstract

A modification of the Blahut algorithm is proposed for decoding of Reed-Solomon codes beyond half the minimum distance. An effective method is offered for the searching of unknown discrepancies needed for analytical continuation of the Berlekamp-Massey algorithm through two additional iterations. This reduces the search time by 2(q-1)n/((n+t+1)(n-t)) times, compared with the Blahut algorithm. An architecture of a searcher for unknown discrepancies is given. The coding gain of the proposed algorithm is shown for some practical codes.

Item Type:

Journal Article

Journal or Publication Title:

IEEE Transactions on Communications

Additional Information:

This paper describes a new decoding algorithm that allows the decoding of Reed-Solomon codes beyond the conventional error correction bound. The results of this research was implemented in the professional DVB-S receivers and as a VHDL code offered to customers. RAE_import_type : Journal article RAE_uoa_type : Electrical and Electronic Engineering

Uncontrolled Keywords:

/dk/atira/pure/subjectarea/asjc/2200/2208

Subjects:

?? dcs-publications-idart-906dcs-publications-personnel-id141electrical and electronic engineeringqa75 electronic computers. computer science ??

Departments:

Faculty of Science and Technology > Engineering
Faculty of Science and Technology > School of Computing & Communications

ID Code:

2639

Deposited By:

ep_importer

Deposited On:

27 Mar 2008 16:17