Spreading sequence selection scheme for NBI suppression IN DS-UWB systems

Author

Wang, C. ; Ying, R. ; Wei, Y. ; Yang, Y.

Author_Institution

Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai, China

fYear

2010

fDate

6-10 Sept. 2010

Firstpage

186

Lastpage

188

Abstract

Interference suppression is important for the ultra-wideband (UWB) systems to operate over spectrum occupied by pre-existing narrowband systems. In this paper, a spreading sequence selection scheme is proposed for code-aided interference suppression in direct-sequence UWB (DS-UWB) systems. Compared with a randomly selected spreading sequence, the presented scheme can ensure the system achieves suboptimal performance. Compared with our recently proposed eigenvector sign (EVS) spreading sequence, an equalizer can be avoided for high speed application by using the selected spreading sequence, which reduces the complexity of system implementation.

Keywords

eigenvalues and eigenfunctions; interference suppression; ultra wideband technology; DS-UWB systems; NBI suppression; code-aided interference suppression; direct-sequence UWB systems; eigenvector sign spreading sequence; narrowband systems; spreading sequence selection scheme; ultra-wideband systems; Complexity theory; Eigenvalues and eigenfunctions; Interference suppression; Narrowband; Signal to noise ratio; Ultra wideband technology; Ultra-wideband (UWB); narrowband interference (NBI) suppression;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrawideband and Ultrashort Impulse Signals (UWBUSIS), 2010 5th International Conference on

Conference_Location

Sevastopol

Print_ISBN

978-1-4244-7470-7

Electronic_ISBN

978-1-4244-7469-1

Type

conf

DOI

10.1109/UWBUSIS.2010.5609145

Filename

5609145