A novel interference cancellation receiver in DS-CDMA-MIMO system

Author

Xingliang Yin ; Hang Long ; Hua Zhu ; Hui Zhao ; Kan Zheng

Author_Institution

Wireless Signal Process. & Network Lab., Beijing Univ. of Posts & Telecommun., Beijing, China

fYear

2012

fDate

8-10 Aug. 2012

Firstpage

503

Lastpage

507

Abstract

In DS-CDMA-MIMO system, the interference from adjacent cells received by user equipment (UE) is space-time related which could be used to design interference cancellation receivers. In this paper, by studying of interference relevance properties, we propose an improved interference cancellation receiver which could be used in actual Multi-antenna Multi-path DS-CDMA systems. Moreover, to further optimize the performance, we also present a new spatial whitening filter. Combined with the filter, the receiver achieves much better BER performance with slightly additional complexity. Simulation results show that when SNR grows, the BER of the proposed receiver drops faster than existing interference cancellation receivers.

Keywords

MIMO communication; code division multiple access; error statistics; interference suppression; spread spectrum communication; BER; DS-CDMA-MIMO system; interference cancellation receiver; interference relevance properties; multiantenna multipath DS-CDMA systems; spatial whitening filter; user equipment; Complexity theory; Equalizers; Integrated circuits; Interference; Multiaccess communication; Receivers; Simulation; DS-CDMA; interference cacellation; multiple antennas; spatial whitening filter;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Networking in China (CHINACOM), 2012 7th International ICST Conference on

Conference_Location

Kun Ming

Print_ISBN

978-1-4673-2698-8

Electronic_ISBN

978-1-4673-2697-1

Type

conf

DOI

10.1109/ChinaCom.2012.6417535

Filename

6417535