Suppression of IEEE 802.11a Interference Based on SVD Algorithm for DS-UWB Communication Systems in Wireless Multipath Channels

Author

Xu, Shaoyi ; Bai, Zhiquan ; Yang, Qinghai ; Kwak, Kyung Sup

Author_Institution

Graduate Sch. of Inf. Technol. & Telecommun., Inha Univ., Inchon

fYear

2006

fDate

Aug. 2006

Firstpage

1

Lastpage

5

Abstract

Operating around 5 GHz, IEEE 802.11a systems overlap the band of UWB signals will interfere with UWB systems significantly. In this paper, a novel narrow-band interferences (NBI) suppression technique based on singular value decomposition (SVD) algorithm is presented in direct sequence ultra-wideband (DS-UWB) system. SVD is used to approximate the interferences which then are subtracted from the received signals. By comparing our algorithm with the conventional suppression methods such as notch filter and maximal-ratio combining partial RAKE (MRC PRAKE) receiver, we could conclude that our technique is very effective

Keywords

approximation theory; interference suppression; multipath channels; singular value decomposition; spread spectrum communication; ultra wideband communication; wireless LAN; wireless channels; DS-UWB; IEEE 802.11a system; NBI; SVD; approximation; direct sequence ultra-wideband system; narrow-band interferences suppression technique; singular value decomposition algorithm; wireless multipath channels; AWGN; Binary phase shift keying; Diversity reception; Filters; Interference suppression; Multipath channels; Narrowband; RAKE receivers; Ultra wideband technology; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2006. APCC '06. Asia-Pacific Conference on

Conference_Location

Busan

Print_ISBN

1-4244-0574-2

Electronic_ISBN

1-4244-0574-2

Type

conf

DOI

10.1109/APCC.2006.255872

Filename

4023177