Low-complexity iterative MUD algorithm for asynchronous UWB systems

Author

Wang, Xialoli ; Huang, Lei ; Ko, Chichug

Author_Institution

Dept. of Electr. & Comput. Eng., Singapore Univ.

fYear

2004

fDate

7-7 Sept. 2004

Firstpage

16

Lastpage

19

Abstract

In this paper, a low-complexity iterative multiuser detection (MUD) algorithm specifically designed for asynchronous multiple access ultra-wideband (UWB) systems is proposed. The maximum a posteriori criterion is applied in the detection process by subtracting the multiple access interference precisely, and the computational complexity is reduced in an iterative manner. Considering the asynchronous scenario, a truncated detection window is introduced and studied. The simulation results demonstrate that the proposed iterative MUD algorithm can achieve a satisfactory bit-error-rate performance while maintain a considerably low complexity

Keywords

computational complexity; error statistics; interference suppression; iterative methods; maximum likelihood estimation; multi-access systems; multiuser detection; radiofrequency interference; ultra wideband communication; asynchronous UWB system; bit-error-rate performance; computational complexity; low-complexity iterative MUD algorithm; maximum a posteriori criterion; multiple access interference; multiple access ultrawideband system; multiuser detection; truncated detection window; Algorithm design and analysis; Computational modeling; Delay; Iterative algorithms; Multiuser detection; Pulse modulation; Pulse shaping methods; Signal resolution; Ultra wideband communication; Ultra wideband technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications Systems, 2004. ICCS 2004. The Ninth International Conference on

Conference_Location

Singapore, China

Print_ISBN

0-7803-8549-7

Type

conf

DOI

10.1109/ICCS.2004.1359330

Filename

1359330