西安电子科技大学学报（自然科学版）Issue(5)：139-146,8.DOI:10.3969/j.issn.1001-2400.2015.05.024
符号间干扰信道的迭代均衡合成算法
Iterative equalization combining algorithm in intersymbol interference channel
摘要
Abstract
To realize joint optimization of spatial diversity and equalization combining in the intersymbol interference ( ISI ) channel , an iterative equalization combining algorithm is proposed . The proposed algorithm uses the coefficients of Turbo equalization to calculate the combination weights without estimating the signal to noise ratio in each diversity branch . The equalized symbols from different diversity branches are combined , and the extrinsic information output from the decoder is fed back to the equalizers , so as to exchange soft information between the equalizers and the decoder . The performance of the proposed algorithm is analyzed using the extrinsic information transfer ( EXIT ) chart and verified by simulations . Results show that our approach fully exploits time domain information from the multipath channel and spatial domain information from multi receiving antennas , which efficiently improve the performance of the receiver in the severe ISI channel .关键词
空间分集/Turbo均衡/符号间干扰/外信息传递图Key words
spatial diversity/Turbo equalization/intersymbol interference/extrinsic information transfer (EXIT)chart分类
信息技术与安全科学引用本文复制引用
乔良,郑辉..符号间干扰信道的迭代均衡合成算法[J].西安电子科技大学学报（自然科学版）,2015,(5):139-146,8.基金项目
国家自然科学基金资助项目 （）
