A low complexity MMSE-RAKE receiver in a realistic UWB channel and in the presence of NBI

Author

Boubaker, N. ; Letaief, K.B.

Author_Institution

Electr. & Electron. Eng. Dept., Hong Kong Univ. of Sci. & Technol., China

Volume

1

fYear

2003

fDate

20-20 March 2003

Firstpage

233

Abstract

Ultra-wideband (UWB) radio systems have attracted a lot of attention during the last few years. These systems are very low transmission power and spread over a bandwidth of several gigahertz. The very low transmission power and the large bandwidth used, enable a UWB system to co-exist with other narrow band systems. Nevertheless, these narrow band systems may cause interference, which may jam the UWB receiver completely. This paper presents a novel narrow band interference suppression technique for UWB radio systems. It consists of selecting the first strongest multipath components and combining them using a RAKE receiver based on the minimum mean square error (MMSE) criterion. Simulation results reveal that this reduced complexity technique can almost completely eliminate the effect of narrow band interference.

Keywords

broadband networks; interference suppression; least mean squares methods; multipath channels; radio receivers; radiofrequency interference; NBI; low complexity MMSE-RAKE receiver; minimum mean square error criterion; multipath components; narrow band interference suppression technique; realistic UWB channel; reduced complexity technique; ultra-wideband radio systems; Bandwidth; Degradation; Fading; Frequency; Interference suppression; Mean square error methods; Multipath channels; Narrowband; RAKE receivers; Ultra wideband technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking, 2003. WCNC 2003. 2003 IEEE

Conference_Location

New Orleans, LA, USA

ISSN

1525-3511

Print_ISBN

0-7803-7700-1

Type

conf

DOI

10.1109/WCNC.2003.1200351

Filename

1200351