Title :
Design of Binary LDPCA Codes with Source Revealing Rate-Adaptation
Author :
Shin, Sang-Yun ; Jang, Min ; Kim, Sang-Hyo ; Jeon, Byeungwoo
Author_Institution :
Coll. of Inf. & Commun. Eng., Sungkyunkwan Univ., Suwon, South Korea
fDate :
11/1/2012 12:00:00 AM
Abstract :
In this letter, we consider binary low density parity check accumulate (LDPCA) codes with source revealing rate-adaptation for distributed source coding (DSC) applications. We propose an effective algorithm for selecting source symbols to the source revealing. Numerical results demonstrate that the proposed scheme significantly outperforms the conventional LDPCA codes in the high compression rate region in asymmetric DSC systems.
Keywords :
parity check codes; source coding; asymmetric DSC systems; binary LDPCA codes; binary low density parity check accumulate codes; distributed source coding applications; source revealing rate-adaptation; source symbols; Correlation; Decoding; Indexes; Parity check codes; Source coding; Vectors; Distributed source coding; LDPCA codes; low-density parity-check nodes; rate-adaptation; source revealing;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2012.092112.120791
