Comparison of Concatenated Reed-Solomon Coding with Hard-decision to Soft-decision LDPC Coding for the Rayleigh Fading Channel
Reed-Solomon (RS) codes C(n,k,n-k + 1) are commonly used error-control codes, because they are Maximum Distance Separable (MDS)codes. Over a Binary Erasure Channel, RS codes perform with optimal results and approach the maximum channel capacity. In this paper, we apply RS codes to packet wireless transmission over the uncorrelated flat Rayleigh fading channel. It is shown that by using an RS code concatenated with BCH codes and using hard decisions, better results are obtained than using bit interleaved LDPC codes, with soft-decision decoding. The BCH code is used to correct small numbers of errors due to noise and also to detect the presence of deep fades, in which case the entire packet is erased. Erased packets are corrected by the RS code.We also discuss the effect of overall code rate on the net performance.
J.Cai M.Tomlinson C.Tjhai M.Ambroze M.Ahmed
Fixed and Mobile Communications Research, University of Plymouth, PL4 8AA, United Kingdom
国际会议
2006年IEEE信息理论国际会议(Proceedings of 2006 IEEE Information Theory Workshop ITW06)
成都
英文
135-139
2006-10-22（万方平台首次上网日期，不代表论文的发表时间）