Proportional Fairness Algorithm for Multiuser MIMO-OFDM Systems Based on the Application Time Window

Xu Lei; Xu Da-zhuan; Zhang Xiao-fei

doi:10.3724/SP.J.1146.2008.01264

Volume 31 Issue 10

Dec. 2010

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Article Navigation > Journal of Electronics & Information Technology > 2009 > 31(10): 2359-2363

Xu Lei, Xu Da-zhuan, Zhang Xiao-fei. Proportional Fairness Algorithm for Multiuser MIMO-OFDM Systems Based on the Application Time Window[J]. Journal of Electronics & Information Technology, 2009, 31(10): 2359-2363. doi: 10.3724/SP.J.1146.2008.01264

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Xu Lei, Xu Da-zhuan, Zhang Xiao-fei. Proportional Fairness Algorithm for Multiuser MIMO-OFDM Systems Based on the Application Time Window[J]. Journal of Electronics & Information Technology, 2009, 31(10): 2359-2363. doi: 10.3724/SP.J.1146.2008.01264

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Proportional Fairness Algorithm for Multiuser MIMO-OFDM Systems Based on the Application Time Window

doi: 10.3724/SP.J.1146.2008.01264

Received Date: 2008-10-06
Rev Recd Date: 2009-07-02
Publish Date: 2009-10-19

Abstract

Abstract

A novel proportional fairness algorithm based on the application time window for multiuser MIMO- OFDM systems with delay channel state information is presented in this paper. With the goal of maximizing overall data throughput in a finite time window W subject to user proportional rate constraints and user power constraints the algorithm of resource allocation is proposed. This algorithm firstly designs constellation distance which meets users bit error rate. Then it maps every user into the corresponding virtual users according to the proportion. Finally in accordance with the shadow price of optimization theory it optimally allocates subcarrier to virtual users. The simulation results show the algorithm can improve total throughput efficiently under the condition of guaranteeing the proportional fairness of users.

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References(1)

References

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