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

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 pr...

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Bibliographic Details
Main Authors: Zhenfei Tang, Weifeng Cao, Wenbo Wang
Format: Conference Proceeding
Language:English
Subjects:
Antenna arrays
Diversity methods
Diversity reception
Downlink
Fading
Mobile antennas
Multiple access interference
Receiving antennas
Solid modeling
Transmitting antennas
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Summary: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.
DOI:10.1109/CASSET.2004.1321994