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Virtual uplink beamforming and power control for space-time coding scheme in DS-CDMA systems with two array antennas

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3 Author(s)
Xiao-Ying Sun ; Inst. of Commun. Eng., Jilin Univ., Changchun, China ; Shu-Xun Wang ; Feng-Ye Hu

Virtual uplink beamforming and power control technique (V-UBPCT) is an effective means for improving downlink performance in DS-CDMA systems. We present a modified V-UBPCT algorithm for block space-time coding scheme with two array antennas, in which the downlink beamforming weight and transmitted power vectors are generated iteratively when the total transmitted power is minimized while received signal-to-interference-and-noise (SINR) requirements are maintained. Simulations compare the total transmitted power and SINR between conventional orthogonal space-time coding scheme and our method.

Published in:

Neural Networks and Signal Processing, 2003. Proceedings of the 2003 International Conference on  (Volume:2 )

Date of Conference:

14-17 Dec. 2003