Performance Analysis of RB-HARQ with LDPC
In this paper, we combined Reliability-Based Hybrid Automatic Repeat request (RB-HARQ) with Low Density Parity Check (LDPC) codes together and studied its performance. We analyzed the asymptotic performance of LDPC coded HARQ with Gaussian Approximation (GA), and investigated the most important factor to the improvement of performance. According to our research, the degrees of the variable nodes play an important role in the system performance. Since RB-HARQ selects bits with least reliabilities to retransmit, we found the selecting method of RB-HARQ is not optimal for LDPC coded HARQ system.
LDPC code RB-HARQ GA
Yiqing Cao Yafeng Wang Hongwen Yang
Wireless Communication Research Center Beijing University of Posts & Telecommunications Beijing P.R. State Key Laboratory of Mobile Communications South East University Nanjing P.R.China
国际会议
武汉
英文
411-414
2005-09-23（万方平台首次上网日期，不代表论文的发表时间）