基于恒模性质的按序串行干扰消除MIMO判决反馈
Ordered Successive Interference Cancellation MIMO Decision Feedback Equalization Based on Constant Modulus Property
基于恒模性质的按序串行干扰消除MIMO判决反馈算法在应用改进的对数正态误差恒模算法得到的前馈数据向量中按序将已检测并判决出的信号进行消除,并将前馈数据向量合并到反馈数据向量中,避免了已判决出的信号对前馈数据向量的干扰,使系统检测性能得到了明显改善。在多散射物的无线通信环境下进行仿真实验,结果表明与传统的采用迭代最小二乘按序判决反馈算法相比,所提算法检测性能提高,误码率显著下降。
he ordered successive interference cancellation MIMO decision feedback equalization based on constant modulus property is obtained by canceling decided symbols from the received symbols successively with the decision feed-forward equalizer (DFE) solution as a well known expression encountered in improved log-normal error function based on CMA (ILNCMA-OSIC-DFE) adaptive algorithms. The decision feedback equalizer replaces a convolution of the decision feed-forward equalizer with the channel. The ILNCMA-OSIC-DFE algorithm avoids the interference of the decided symbols and improves the detection performance. In the environment where lots of wireless communications were scattered over, simulation testing and the results showed that the detection performance of proposed algorithm is dramatically improved in comparison with the traditional ordered decision feedback equalization based on recursive least square algorithm (RLS-O-DFE).
汪晋宽、解志斌、王赟
无线通信通信
对数正态误差恒模算法按序串行干扰消除判决反馈
log-normal error function based on CMAordered successive interference cancellationdecision feedback
汪晋宽,解志斌,王赟.基于恒模性质的按序串行干扰消除MIMO判决反馈[EB/OL].(2008-03-25)[2025-08-02].http://www.paper.edu.cn/releasepaper/content/200803-749.点此复制
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