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Progress In Electromagnetics Research
ISSN: 1070-4698, E-ISSN: 1559-8985
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COMBINED BEAMFORMING WITH ALAMOUTI CODING USING DOUBLE ANTENNA ARRAY GROUP FOR MULTIUSER INTERFERENCE CANCELLATION

By Y. Wang, G. Liao, Z. Ye, and X. Wang

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Abstract:
This paper propose a new multiple-input multiple-output (MIMO) signal processing scheme that combines optimum transmit and receive beamforming with the Alamouti space-time block code (STBC) transmission and modifies the decoding process. The scheme uses double antenna array groups to achieve stable performance regardless of direction of arrived (DOA) and angular spread (AS). In a multiuser MIMO communications scenario, the beamforming suppresses co-channel interference (CCI) by maximizing the uplink signal-to-noise-plus-interference-ratio (SINR) and suppress CCI independently while preserving orthogonality of the MIMO channel. It is shown that the beamforming process provides array gain by increasing the bit-error-rate (BER) performance and maximizes the available uplink channel capacity for each user in the presence of CCI.

Citation:
Y. Wang, G. Liao, Z. Ye, and X. Wang, "Combined Beamforming with Alamouti Coding Using Double Antenna Array Group for Multiuser Interference Cancellation," Progress In Electromagnetics Research, Vol. 88, 213-226, 2008.
doi:10.2528/PIER08102702
http://www.jpier.org/PIER/pier.php?paper=08102702

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