Performance analysis of an over-sampling multi-channel equalization for a multi-band uwb system

Author

Wong, Sai Ho ; Peng, Xiaoming ; Chin, Francois ; Madhukumar, AS

Author_Institution

Inst. for Infocomm Res.

Volume

5

Issue

7

fYear

2006

fDate

7/1/2006 12:00:00 AM

Firstpage

1610

Lastpage

1615

Abstract

This paper proposes an over-sampling multi-channel equalizer per sub-band for multi-band ultra-wideband (UWB) system and compares its performance with conventional RAKE receiver when operating in practical UWB channel models. Three transmission modes have been considered, and inter-symbol interference (ISI) is found to be inherent to certain transmission modes due to the large UWB channel delay spreads. Through detailed analytical and simulation studies, the proposed over-sampled minimum mean square error (MMSE) equalizer is shown to be able to handle ISI under any channel conditions or transmission modes, with an acceptable BER. In addition, the rich multipath diversity of the UWB channels is harnessed by the over-sampling scheme, for output SNR improvement. Over-sampling is done in the expense of an increase in system complexity

Keywords

equalisers; error statistics; intersymbol interference; ultra wideband communication; BER; MMSE equalizer; RAKE receiver; UWB channel delay spreads; bit error rate; intersymbol interference; multiband UWB system; multipath diversity; over-sampled minimum mean square error equalizer; over-sampling multichannel equalization; ultrawideband system; Analytical models; Bit error rate; Delay; Equalizers; Fading; Intersymbol interference; Mean square error methods; Multipath channels; Performance analysis; Ultra wideband technology;

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/TWC.2006.1673069

Filename

1673069