Bit-mapping Schemes of LDPC Codes for Partial Chase Combining
부분 체이스 결합을 위한 LDPC 부호의 비트 매핑 기법

Hyeong-Gun Joo, Dong-Joon Shin
2012 The Journal of Korean Institute of Communications and Information Sciences  
In this paper, a bit-mapping scheme is proposed for partial Chase combining in LDPC-coded systems. Contrary to the previously known bit mapping that assigns the information bits to more reliable channels, the proposed mapping assigns the codeword bits of irregular LDPC codes to distinct Gaussian channels by considering the characteristics of LDPC codes and channels. The recursion equation for partial Chase combining is derived by using the density evolution technique, based on it, the best bit
more » ... apping among the various bit-mapping schemes is derived, and the validity of them is confirmed through simulation. ※ 본 연구는 한국연구재단 기초연구과제
doi:10.7840/kics.2012.37a.5.311 fatcat:syfsozairfbylgarct7tv3esqa