DocumentCode
1463435
Title
Performance of Weighted Nonbinary Repeat-Accumulate Codes over GF(q) with q-ary Orthogonal Modulation
Author
Kim, Yongsang ; Cheun, Kyungwhoon ; Lim, Hyuntack
Volume
59
Issue
5
fYear
2011
fDate
5/1/2011 12:00:00 AM
Firstpage
1208
Lastpage
1212
Abstract
An approximate upper bound is derived to the maximum likelihood decoding threshold of weighted nonbinary repeat-accumulate (WNRA) codes over GF(q) with q-ary orthogonal modulation and coherent detection over the additive white Gaussian noise channel. As with binary RA codes, WNRA codes show the potential for achieving the channel capacity with decreasing code rate for large enough q.
Keywords
AWGN channels; binary codes; channel capacity; maximum likelihood decoding; modulation; orthogonal codes; signal detection; WNRA code; additive white Gaussian noise channel; approximate upper bound; binary RA code; channel capacity; code rate; coherent detection; maximum likelihood decoding threshold; q-ary orthogonal modulation; weighted nonbinary repeat-accumulate code; AWGN channels; Approximation methods; Channel capacity; Coherence; Decoding; Modulation; Upper bound; Channel capacity; orthogonal modulation; repeat-accumulate codes;
fLanguage
English
Journal_Title
Communications, IEEE Transactions on
Publisher
ieee
ISSN
0090-6778
Type
jour
DOI
10.1109/TCOMM.2011.022811.090194
Filename
5723043
Link To Document