Title :
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
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;
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
DOI :
10.1109/ChinaCom.2012.6417535
