Title
A Scheme for Collective Encoding and Iterative Soft-Decision Decoding of Cyclic Codes of Prime Lengths: Applications to Reed–Solomon, BCH, and Quadratic Residue Codes
Abstract
A novel scheme is presented for encoding and iterative soft-decision decoding of cyclic codes of prime lengths. The encoding of a cyclic code of a prime length is performed on a collection of codewords which are mapped through Galois Fourier transform into a codeword in a low-density parity-check code with a binary parity-check matrix for transmission. Using this matrix, binary iterative soft-decision decoding algorithm is applied to jointly decode a collection of codewords from the cyclic code. The joint-decoding allows for information sharing among the received vectors corresponding to the codewords in the collection during the iterative decoding process. For decoding Reed-Solomon and BCH codes of prime lengths, the proposed decoding scheme not only requires much lower decoding complexity than other soft-decision decoding algorithms for these codes, but also yields superior performance. The proposed decoding scheme can also achieve a joint-decoding gain over the maximum likelihood decoding of individual codewords. The decoding scheme is also applied to quadratic residue codes.
Year
DOI
Venue
2020
10.1109/TIT.2020.2978383
IEEE Transactions on Information Theory
Keywords
DocType
Volume
BCH code,collective encoding,cyclic code,Galois Fourier transform,joint iterative soft-decision decoding,LDPC code,parity-check matrix,prime code length,quadratic residue code,Reed–Solomon code
Journal
66
Issue
ISSN
Citations 
9
0018-9448
1
PageRank 
References 
Authors
0.36
0
4
Name
Order
Citations
PageRank
S. Lin11280124.59
Khaled A. S. Abdel-Ghaffar2616122.03
Juane Li3435.68
Keke Liu4253.69