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Smart antenna for combined downlink beam-forming with transmit diversity in TDD-CDMA system

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3 Author(s)
Zhenfei Tang ; Beijing Univ. of Posts & Telecommun., China ; Weifeng Cao ; Wenbo Wang

Downlink beam-forming algorithms are applied to the smart antenna system to reduce the transmission power and resist intra-cell interference (MAI). On the other hand transmit diversity technique is used to overcome the multipath fading environment by providing better channel conditions. This work proposes a hybrid scheme combining downlink beam-forming with transmit diversity in TDD-CDMA radio mobile system. This hybrid scheme is found to provide a significant gain over conventional beam-forming with the same complexity. This new hybrid scheme of smart antenna is analyzed and the simulation results are also given.

Published in:

Emerging Technologies: Frontiers of Mobile and Wireless Communication, 2004. Proceedings of the IEEE 6th Circuits and Systems Symposium on  (Volume:2 )

Date of Conference:

31 May-2 June 2004