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

Author

Liang, Zhonghua ; Zhu, Shihua ; Wang, Shaopeng

Author_Institution

Dept. of Inf. & Commun. Eng., Jiaotong Univ., Xi´´an

fYear

2007

fDate

11-15 March 2007

Firstpage

1588

Lastpage

1592

Abstract

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.

Keywords

MIMO communication; Monte Carlo methods; adaptive filters; diversity reception; interference (signal); multiuser detection; ultra wideband communication; Monte-Carlo simulations; direct-sequence ultra-wideband systems; multiple-input multiple-output systems; multiuser detection; multiuser interference; receive diversity; space-time filter; transmit diversity; Adaptive filters; Fading; Interference suppression; Intersymbol interference; MIMO; Multipath channels; Multiuser detection; Sampling methods; Transmitting antennas; Ultra wideband antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

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

Conference_Location

Kowloon

ISSN

1525-3511

Print_ISBN

1-4244-0658-7

Electronic_ISBN

1525-3511

Type

conf

DOI

10.1109/WCNC.2007.299

Filename

4224544