Title
Near Maximum-Likelihood Performance of Some New Cyclic Codes Constructed in the Finite-Field Transform Domain
Abstract
It is shown that some well-known and some new cyclic codes with orthogonal parity-check equations can be constructed in the finite-field transform domain. It is also s hown that, for some binary linear cyclic codes, the performance of the iterative decoder can be improved by substituting some of the dual code codewords in the parity-check matrix with other dual code codewords formed from linear combinations. This technique can bring the performance of a code closer to its maximum- likelihood performance, which can be derived from the erroneous decoded codeword whose euclidean distance with the respect to the received block is smaller than that of the correct codeword. For (63, 37), (93, 47) and (105, 53) cyclic codes, the maximum- likelihood performance is realised with this technique.
Year
Venue
Keywords
2005
Clinical Orthopaedics and Related Research
euclidean distance,finite field,information theory,cyclic code,maximum likelihood
Field
DocType
Volume
Discrete mathematics,Concatenated error correction code,Parity-check matrix,Low-density parity-check code,Block code,Cyclic code,Linear code,Code word,Mathematics,Dual code
Journal
abs/cs/050
Citations 
PageRank 
References 
0
0.34
5
Authors
5
Name
Order
Citations
PageRank
C. Tjhai1246.02
Martin Tomlinson210619.89
R. Horan361.00
A. Ambroze47013.00
Mohammed Ahmed582.50