通信学报2012，Vol.33Issue(4)：69-76,8.
H-ARQ信道上高性能全分集LDPC码的构造与性能分析
High performance full diversity LDPC codes construction and performance analysis for H-ARQ channels
摘要
Abstract
In order to improve the performance of communication system with hybrid automatic repeat request (H-ARQ), a kind of full diversity low density parity check(LDPC) codes on H-ARQ block-fading channels was proposed. First, the outage probability and inherent diversity were analyzed, then a kind of full diversity PDPC codes for H-ARQ channel was designed. The new proposed LDPC codes connected the initial transmission with the repeated transmissions by root-connection to get extern diversity gain. In addition, the relationship between the structure of full diversity LDPC codes and the coding gain was given, and an algorithm to improve coding gain was brought forward by increasing the proportion of full diversity parity bits. Simulation results show that the proposed algorithm can not only achieve full diversity, but also get better performance than constructed LDPC codes at present.关键词
H-ARQ/块衰落/全分集/LPDC/编码增益Key words
H-ARQ/ block-fading/ full diversity/ LDPC/ coding gain分类
信息技术与安全科学引用本文复制引用
郭锐,胡方宁,刘济林..H-ARQ信道上高性能全分集LDPC码的构造与性能分析[J].通信学报,2012,33(4):69-76,8.基金项目
国家自然科学基金资助项目(60972049) （60972049）
浙江省自然科学基金资助项目(Y1100579) （Y1100579）
