A Simplified Method for Turbo Decoding over Rayleigh Fading Channels

摘要：

In this paper, we investigate the signal-to-noise ratio (SNR) sensitivity of the Log-MAP turbo decoder over Rayleigh fading channels. It is shown that the use of the channel reliability factor proposed by Frenger is equivalent to an SNR underestimation when the channel estimate is not perfect. In addition, we propose s simplified method to compute the channel reliability factor, which leads to reduction of the computing complexity while causes no performance degradation.

关键词： Channel estimation, Log-MAP decoding, Rayleigh fading channels, signal-to-noise ratio (SNR), turbo codes

作者: Ke Xu Jianwei Wan Zhan Xu

作者单位: Department of Electrical Science and Engineering, National University of Defense Technology Changsha, Hunan, P.R.China, 410073

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 1601-1603

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）