DocumentCode :
2539876
Title :
Techniques for improving block error rate of LDPC decoders
Author :
Zheng, X. ; Lau, F.C.M. ; Tse, C.K. ; Wong, S.C.
Author_Institution :
Dept. of Electron. & Inf. Eng., Hong Kong Polytech. Univ., Kowloon
fYear :
2006
fDate :
21-24 May 2006
Lastpage :
2264
Abstract :
In the study of low-density-parity-check (LDPC) codes, most researchers are interested in their bit error rate performance. However, block error rate (BLER) is another important measure of the system performance because it provides the rate at which the blocks/packets need to be re-sent again - the smaller the better. In this paper, we apply a simple feedback technique to the decoding of LDPC codes. Extensive simulations have been performed. Results show that the proposed method can effectively improve the BLER of the codes at the waterfall region while not degrading the BER performance at the high SNR region
Keywords :
block codes; codecs; decoding; error correction codes; feedback; parity check codes; BLER; LDPC code; LDPC decoders; block error rate; feedback technique; low-density-parity-check; Bifurcation; Bit error rate; Chaotic communication; Degradation; Error analysis; Feedback; Iterative algorithms; Iterative decoding; Maximum likelihood decoding; Parity check codes;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
Type :
conf
DOI :
10.1109/ISCAS.2006.1693071
Filename :
1693071
Link To Document :
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