TY - GEN
T1 - A systematic optimized comparison algorithm for LDPC decoder
AU - Hung, Jui Hui
AU - Hung, Jui-Hung
AU - Chen, Sau-Gee
PY - 2008/5/28
Y1 - 2008/5/28
N2 - This paper proposes a novel systematic optimized comparison algorithm for LDPC codes with arbitrary code lengths. Based on the presented algorithm, we also design a corresponding decoder architecture which has a short comparison delay time of [log2(n-1)] and a very low comparator complexity of n× [log2 (n-1)] , where n is the input number to CNU. Besides, the proposed design is general, systematic and flexible, which can be applied to arbitrary input number of a CNU. The designed CNU is favorable to the existing CNU designs which are non-systematically designed with either longer critical path delays or higher comparator counts than the proposed designs. The proposed design is particularly good for long code length cases, when it is impractical to do customized optimized designs by hand, due to high design complexity.
AB - This paper proposes a novel systematic optimized comparison algorithm for LDPC codes with arbitrary code lengths. Based on the presented algorithm, we also design a corresponding decoder architecture which has a short comparison delay time of [log2(n-1)] and a very low comparator complexity of n× [log2 (n-1)] , where n is the input number to CNU. Besides, the proposed design is general, systematic and flexible, which can be applied to arbitrary input number of a CNU. The designed CNU is favorable to the existing CNU designs which are non-systematically designed with either longer critical path delays or higher comparator counts than the proposed designs. The proposed design is particularly good for long code length cases, when it is impractical to do customized optimized designs by hand, due to high design complexity.
KW - Architecture
KW - Decoder
KW - LDPC
UR - http://www.scopus.com/inward/record.url?scp=44149120093&partnerID=8YFLogxK
U2 - 10.1109/ICACT.2008.4494066
DO - 10.1109/ICACT.2008.4494066
M3 - Conference contribution
AN - SCOPUS:44149120093
SN - 9788955191356
T3 - International Conference on Advanced Communication Technology, ICACT
SP - 1513
EP - 1516
BT - 10th International Conference on Advanced Communication Technology, ICACT 2008 - Proceedings
T2 - 2008 10th International Conference on Advanced Communication Technology
Y2 - 17 February 2008 through 20 February 2008
ER -