一种阵列天线与干扰抵消技术相结合的宽带CDMA接收机

Journal of Applied Sciences ›› 2005, Vol. 23 ›› Issue (3): 225-229.

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A Wide-Band CDMA Receiver of Adaptive Antenna Arrays Combined with Interference Cancellation

YAN Yong-qing, ZHAO Chun-ming, YOU Xiao-hu

National Mobile Communication Research Laboratory, Southeast University, Nanjing 210096, China

Received:2004-03-20 Revised:2004-06-18 Online:2005-05-31 Published:2005-05-31

Abstract

Abstract: A wide-band CDMA receiver combined with adaptive antenna arrays and partial parallel interference cancellation (PPIC) is proposed.An novel pilot aided spatial-temporal receiver architecture for wide-band CDMA reverse links is proposed in the first stage to separate the signals in space.An improved parallel interference cancellation is employed for further reduction of residual multiple access interference (MAI) especially for in-beam MAI.Simulation results show that the performance of the receiver proposed is superior to the traditional adaptive antenna arrays or PPIC used alone in time variant Rayleigh fading channels.

Key words: beamforming, adaptive antenna array, CDMA, interference cancellation

CLC Number:

TN929.533

YAN Yong-qing, ZHAO Chun-ming, YOU Xiao-hu. A Wide-Band CDMA Receiver of Adaptive Antenna Arrays Combined with Interference Cancellation[J]. Journal of Applied Sciences, 2005, 23(3): 225-229.

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A Wide-Band CDMA Receiver of Adaptive Antenna Arrays Combined with Interference Cancellation

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