Widely linear decision-feedback equalizer for time-dispersive linear MIMO channels

被引：28

作者：

Mattera, D ^{[1
]}

Paura, L ^{[1
]}

Sterle, F ^{[1
]}

机构：

[1] Univ Naples Federico II, Dipartimento Ingn Elettron & Telecommun, I-80125 Naples, Italy

来源：

IEEE TRANSACTIONS ON SIGNAL PROCESSING | 2005年 / 53卷 / 07期

关键词：

decision feedback equalizers; FIR digital filters; MIMO systems;

D O I：

10.1109/TSP.2005.849196

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The paper deals with the transmission over multiple-input/multiple-output channels exhibiting time-dispersion. A minimum mean-square error equalizer based on widely linear processing combined with the decision-feedback (DF) strategy is implemented via finite-impulse-response filters. The proposed equalizer provides considerable performance gain at the expense of a limited increase in computational complexity. The performance analysis has been carried out accounting for mismatch conditions always present in practice. The results confirm the stronger sensitivity of the DF-based equalizers with respect to the feedforward-based ones when system parameters are not accurately known.

引用

页码：2525 / 2536

页数：12

共 14 条

[1] The finite-length multi-input multi-output MMSE-DFE [J].