The multi-user interference mitigation for UWB base on TR technology

Author

He, Wei ; Wang, Yukai ; Tian, Zengshan ; Chen, Guoping

Author_Institution

Sch. of Commun. & Inf. Eng., Chongqing Univ. of Posts & Telecommun., Chongqing, China

fYear

2011

fDate

9-11 Sept. 2011

Firstpage

557

Lastpage

560

Abstract

Ultra-wideband (UWB) communications technology is a kind of new indoor high speed transmission wireless communication technology. When the multi-users share the same channel, the complex indoor environment of multi-path propagation will seriously deteriorates communication performance. This paper uses a new Time Reversal (TR) technology for UWB systems, for the TR has temporal and spatial focus characteristics. The signals are pre-coded after transmitting, and the channel characteristics are used as the pre-code facts. Thus the channel itself becomes a filter fulfill the temporal and spatial focus characteristics of TR technique. Meanwhile the adaptive filtering can be observed. Simulation results show that it reduces the Bits Error Rate (BER) under the circumstance of indoor multi-user with serious multipath.

Keywords

indoor radio; multi-access systems; radiofrequency interference; telecommunication channels; ultra wideband communication; BER; bits error rate; indoor high speed transmission wireless communication technology; multi-path propagation; multi-user interference mitigation; time reversal technology; ultra-wideband communications technology; Bit error rate; Fading; Interference; Multipath channels; Receivers; Transmitters; Wireless communication; BER; TR; UWB; channel equalization; multi-user;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Communications and Control (ICECC), 2011 International Conference on

Conference_Location

Ningbo

Print_ISBN

978-1-4577-0320-1

Type

conf

DOI

10.1109/ICECC.2011.6066628

Filename

6066628