標題: Adaptive two-stage GSC-based PIC detection for time-varying MIMO channels
作者: Lee, Yinman
Wu, Wen-Rong
電信工程研究所
Institute of Communications Engineering
關鍵字: multiple-input multiple-output (MIMO);parallel interference cancellation (PIC);least-mean-square (LMS) algorithm;generalized sidelobe canceller (GSC)
公開日期: 1-四月-2008
摘要: Adaptive parallel interference cancellation (PIC) has been recently proposed for the signal detection in multiple-input multiple-output (MIMO) systems. However, it suffers from error propagation when operated in time-varying channels. In this letter, an adaptive two-stage PIC with the minimum variance (MV) criterion is proposed to solve the problem. Adaptation with the MV criterion is realized with a decision feedback generalized sidelobe canceller (DFGSC). In the first-stage cancellation, a special structure involving dual DFGSCs is developed. All adaptation operations are implemented with the least-mean-square (LMS) algorithm. Simulations show that the proposed adaptive PIC detection can significantly outperform the conventional adaptive PIC detection in time-varying MIMO channel environments.
URI: http://dx.doi.org/10.1109/TWC.2008.060238
http://hdl.handle.net/11536/9482
ISSN: 1536-1276
DOI: 10.1109/TWC.2008.060238
期刊: IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
Volume: 7
Issue: 4
起始頁: 1105
結束頁: 1110
顯示於類別:期刊論文


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