DocumentCode
961371
Title
Adaptive offset min-sum algorithm for low-density parity check codes
Author
Jiang, Ming ; Zhao, Chunming ; Zhang, Li ; Xu, Enyang
Author_Institution
Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing
Volume
10
Issue
6
fYear
2006
fDate
6/1/2006 12:00:00 AM
Firstpage
483
Lastpage
485
Abstract
An improvement is presented to the offset min-sum decoding algorithm for low-density parity check codes. The proposed algorithm introduces a more efficient adjustment for check-node update computation in view of different minimum values. According to the optimal correction factor of normalized min-sum algorithm, we can determine the adaptive offset item. The improved algorithm achieves a noticeable performance gain with only a modest increase in computation complexity
Keywords
adaptive codes; adaptive decoding; computational complexity; parity check codes; LDPC codes; adaptive offset algorithm; computation complexity; decoding; low-density parity check codes; normalized min-sum algorithm; AWGN; Approximation algorithms; Belief propagation; Costs; Degradation; Iterative algorithms; Iterative decoding; Linear approximation; Parity check codes; Performance gain;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/LCOMM.2006.1638623
Filename
1638623
Link To Document