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Space-Time Adaptive Multiuser Detection for Direct-Sequence UWB-MIMO Systems

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3 Author(s)
Zhonghua Liang ; Dept. of Inf. & Commun. Eng., Jiaotong Univ., Xi''an ; Shihua Zhu ; Shaopeng Wang

In this paper, a multiuser detection (MUD) scheme employing joint adaptive filter and space-time signal processing is discussed and experimentally investigated for direct-sequence (DS) ultra-wideband (UWB) multiple-input multiple-output (MIMO) systems. In dense multipath environments, by taking advantage of the space-time filter structure in conjunction with simple transmit and/or receive diversity approaches, the investigated MUD scheme is capable of significantly improving the performance in combating multiuser interference (MUI) compared with the temporal MUD method based on single-antenna systems. The effects of transmit and/or receive diversity are also examined via the Monte-Carlo simulations.

Published in:

Wireless Communications and Networking Conference, 2007.WCNC 2007. IEEE

Date of Conference:

11-15 March 2007