Title :
New Distributed Source Coding scheme based on LDPC codes with source revealing rate-adaptation
Author :
Shin, Sang-Yun ; Jang, Min ; Kang, Jin Whan ; Kim, Sang-Hyo
Author_Institution :
Sch. of Inf. & Commun. Eng., Sungkyunkwan Univ., Suwon, South Korea
Abstract :
In this paper, we propose a new Distributed Source Coding (DSC) scheme based on Low-Density Parity-Check (LDPC) codes with source revealing rate-adaptation. This scheme consists of LDPC codes which are well designed at their respective operating rates. The member codes do not need to be designed with any rate-adaptation criterion. Instead, when decoding fails, source revealing method is used. Numerical results show that the proposed scheme performs within average 5.6% of the Slepian-Wolf bound over the entire compression rate region. The decoding complexity also dramatically decreases by 57%.
Keywords :
decoding; parity check codes; source coding; LDPC codes; Slepian-Wolf bound; compression rate region; decoding complexity; distributed source coding; low-density parity-check codes; rate-adaptation criterion; source revealing rate-adaptation; Correlation; Decoding; Error correction codes; Indexes; Parity check codes; Source coding;
Conference_Titel :
Communications, Computers and Signal Processing (PacRim), 2011 IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
978-1-4577-0252-5
Electronic_ISBN :
1555-5798
DOI :
10.1109/PACRIM.2011.6033018