Double proportional fair user pairing algorithm for uplink virtual MIMO systems

Authors:
Xia Chen;Honglin Hu;Haifeng Wang;Hsiao-hwa Chen;M. Guizani
Affiliations:
Shanghai Res. Center for Wireless Commun., Chinese Acad. of Sci., Shanghai;-;-;-;-
Venue:
IEEE Transactions on Wireless Communications
Year:
2008

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Abstract

In this letter, we study the user pairing algorithms for uplink virtual multiple-input multiple-output (V-MIMO) systems, and propose a new double proportional fair (D-PF) algorithm for user pairing of the uplink V-MIMO systems. The proposed D-PF algorithm uses the PF criterion to decide the first user, and a modified PF criterion is suggested to choose the pairing user. Simulation results show that the proposed D- PF algorithm outperforms the conventional determinant formula (DF) algorithm in terms of both throughput and fairness performances. Moreover, if compared with the conventional single PF (S-PF) algorithm, the proposed D-PF algorithm achieves a fairly good trade-off between the throughput and fairness, being able to trade with 5% throughput loss for 15% fairness enhancement.