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Generation of Multiple Weights in the Opportunistic Beamforming Systems
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Wireless Sensor Network·Volume 01 (2009)·Pages 189–195·Published 15 October 2009·DOI10.4236/wsn.2009.13025
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Abstract
A new scheme to generate multiple weights used in opportunistic beamforming (OBF) system is proposed to deal with the performance degradation due to the fewer active users in the OBF system. In the proposed scheme, only two mini-slots are employed to create effective channels, while more channel candidates can be obtained via linearly combining the two effective channels obtained during the two mini-slots, thus increas-ing the multiuser diversity and the system throughputs. The simulation results verify the effectiveness of the proposed scheme.
KeywordsOpportunistic Beamforming (OBF)Multiuser DiversitySystem ThroughputsScheduling
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