A Utility Based Multiuser Scheduling Algorithm in Downlink SDM/OFDMA System

Xu Ning; Zhou Bei; Wang Ying; Zhang Ping

doi:10.3724/SP.J.1146.2006.01776

Volume 30 Issue 6

Dec. 2010

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Article Navigation > Journal of Electronics & Information Technology > 2008 > 30(6): 1428-1431

Xu Ning, Zhou Bei, Wang Ying, Zhang Ping . A Utility Based Multiuser Scheduling Algorithm in Downlink SDM/OFDMA System[J]. Journal of Electronics & Information Technology, 2008, 30(6): 1428-1431. doi: 10.3724/SP.J.1146.2006.01776

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Xu Ning, Zhou Bei, Wang Ying, Zhang Ping . A Utility Based Multiuser Scheduling Algorithm in Downlink SDM/OFDMA System[J]. Journal of Electronics & Information Technology, 2008, 30(6): 1428-1431. doi: 10.3724/SP.J.1146.2006.01776

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A Utility Based Multiuser Scheduling Algorithm in Downlink SDM/OFDMA System

doi: 10.3724/SP.J.1146.2006.01776

Received Date: 2006-11-13
Rev Recd Date: 2007-09-10
Publish Date: 2008-06-19

Abstract

Abstract

The multiuser scheduling issue in Spatial Division Multiplexing/Orthogonal Frequency Division Multiple Access (SDM/OFDMA) wireless communication system is studied. This issue is characterized as three dimensions of time, frequency, and space. A utility based multiuser scheduling algorithms is proposed to both improve the system resource utilization and maximize the users utility. The computer simulation results show that the performance of the proposed algorithms is similar to the exhaustive searching algorithm while the complexity is highly reduced.

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References(1)

References

Spencer Q H, Swindlehurst A L, and Haardt M. Zero-Forcingmethods for downlink spatial multiplexing in multiuserMIMO channels[J].IEEE Trans. on Signal Processing.2004,52(2):461-471[2]Choi L U and Murch R D. A transmit preprocessingtechnique for multiuser MIMO systems using a decompositionapproach[J].IEEE Transactions on Wireless Communications.2004, 3(1):20-24[3]Anton-Haro C, Svedman P, Bengtsson M, Alexiou A, andGameiro A. Cross-layer scheduling for multi-user MIMOsystems. IEEE Communications Magazine, 2006, 44(9): 39-45.[4]Xu Ning, Wang Ying, and Zhang Ping. Multiuser schedulingin downlink MIMO/OFDMA system with transmitpreprocessing, APCC 2006, Busan, Korea. 2006: 1-5.[5]3GPP, Spatial channel model for Multiple Input MultipleOutput (MIMO) simulations. TR 25.996, V 6.1.0, 2003.

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