A novel NBI suppression scheme for UWB communications using multiple receive antennas

Author

Ibrahim, Jihad ; Buehrer, R.Michael

Author_Institution

Mobile & Portable Radio Res. Group, Virginia Tech, Blacksburg, VA, USA

fYear

2006

Firstpage

507

Lastpage

510

Abstract

In this paper, a narrowband interference (NBI) mitigation scheme for ultra-wide bandwidth (UWB) signals using multiple receive antennas is examined. The low spatial fading of UWB signals compared to NBI signals is exploited to provide "interference diversity". Whereas classical diversity techniques are designed to increase the desired received signal power, the aim of interference diversity is to minimize the effective NBI power. Selection diversity (SD), equal gain combining (EGC) and maximal ratio combining (MRC) methods are investigated. It is shown that SD and ECG result in a 3-dB performance improvement when the number of receive antennas is doubled. Also, MRC yields additional gains over SD and ECG. The proposed methods are mathematically analyzed, then verified by simulation.

Keywords

antenna arrays; diversity reception; interference suppression; mathematical analysis; receiving antennas; ultra wideband communication; 3 dB; ECG; UWB communications; equal gain combining; interference diversity; mathematically analysis; maximal ratio combining methods; multiple receive antennas; narrowband interference suppression scheme; selection diversity; ultrawide bandwidth signals; Analytical models; Bandwidth; Diversity reception; Electrocardiography; Fading; Interference; Narrowband; Receiving antennas; Signal design; Ultra wideband communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio and Wireless Symposium, 2006 IEEE

Print_ISBN

0-7803-9412-7

Type

conf

DOI

10.1109/RWS.2006.1615205

Filename

1615205