DocumentCode :
586683
Title :
Unequal error protection QC-LDPC codes via Masking
Author :
Chi-Jen Wu ; Chung-Hsuan Wang ; Chi-chao Chao
Author_Institution :
Inst. of Commun. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan
fYear :
2012
fDate :
28-31 Oct. 2012
Firstpage :
546
Lastpage :
550
Abstract :
In this paper, a generalized construction of quasi-cyclic low-density parity-check (QC-LDPC) codes for unequal error protection (UEP) is proposed based on the masking technique. We can obtain UEP QC-LDPC codes as long as the Tanner graph of the masking matrix satisfies a general condition which can include our previous UEP construction as a special case. A sufficient condition to have flexible choice of protection levels is then presented. Simulation results show that the constructed codes can indeed provide codeword bits with different bit-error-rate performance.
Keywords :
cyclic codes; error statistics; parity check codes; QC-LDPC codes; Tanner graph; bit-error-rate; codeword bits; constructed codes; masking matrix; quasicyclic low-density parity-check codes; unequal error protection; Bit error rate; Block codes; Educational institutions; Error correction codes; Parity check codes; Simulation; Sparse matrices;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information Theory and its Applications (ISITA), 2012 International Symposium on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4673-2521-9
Type :
conf
Filename :
6400996
Link To Document :
بازگشت