基于变换域插值的残余码间干扰消除算法

为了在正交频分复用系统中解决符号间干扰以及子信道干扰导致系统性能下降的问题,采用了一种新的基于变换域插值信道估计的残余消除算法的方法,进行了理论分析和实验验证,取得了科学准确的数据。利用MATLAB模拟仿真的结果表明,在宽带无线局域网中,当循环保护前缀长度不足时,采用该算法经过有限次迭代后,正交频分复用系统性能得到明显的改善,同时降低了计算的难度。这一结果对光通信技术的研究是有帮助的。

RISIC scheme based on transform-domain processing channel estimation

In order to solve the problem of declining performance caused by inter-symbol interference (ISI) and the sub-channel interference (ICI) in the orthogonal frequency division multiplexing (OFDM) systems, using a new method of residual elimination algorithm based on transform-domain processing channel estimation, and conducting a theoretical analysis and experimental validation, which obtain a scientific and accurate data. The results that Using MATLAB simulation indicated: in the broadband wireless LAN, when the cyclic prefix length is insufficient to protect the algorithm used, through finite iterations, the orthogonal frequency division multiplexing system performance is significantly improved, and also reduced the difficult in the calculation. The result is helpful for the study of optical communication technology.