频率选择性衰落信道中V-BLAST系统的改进概率译码算法

赵东峰; 莫勇; 李道本

doi:10.3724/SP.J.1146.2008.00747

频率选择性衰落信道中V-BLAST系统的改进概率译码算法

doi: 10.3724/SP.J.1146.2008.00747

基金项目:

国家自然科学基金(90604035)资助课题

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出版历程
- 收稿日期: 2008-06-06
- 修回日期: 2008-10-06
- 刊出日期: 2009-06-19

An Improved Iterative Decoding Algorithm for V-BLAST in the Frequency Selective Channel

摘要

摘要: 该文结合双向M-BCJR算法，提出了一种用于频率选择性信道条件下的V-BLAST系统的改进迭代译码算法。该算法通过改进度量函数与引入Kullback-Leibler距离计算进行双向搜索的方法，在保持算法低复杂度的基础上，提高了算法性能。仿真结果验证了该算法的性能。
- 迭代译码;V-BLAST;M-BCJR
Abstract: An improved algorithm based on the bi-directional M-BCJR algorithm for V-BLAST in the frequency selective channel is proposed in this paper. The improved algorithm improves the performance of the bi-directional M-BCJR algorithm with little complexity increase by using a new metric and using the Kullback-Leibler distance for bi-directional search. The performance of the improved algorithm is confirmed by simulations.

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