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Joint Power Allocation and Scheduling of Multi-Antenna OFDM System in Broadcast Channel

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5 Author(s)
Feng She ; Dept. of Electron. Eng., Shanghai Jiaotong Univ., Shanghai, China ; Wen Chen ; Hanwen Luo ; Tingshan Huang
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This paper considers the general multiuser downlink scheduling problem and power minimization with multiuser rate constraints. We present joint user selection algorithms for DPC, ZF-DPC, ZFBF and TDMA for multi-antenna OFDM system in broadcast channels, and we also present a practical waterfilling solution in this paper. By the selected users with the consideration of fairness, we derive the power optimization algorithm with multiuser rate constraints. Simulation results show that the presented user scheduling algorithms and power minimization algorithms can achieve good power performance. Meanwhile, simulation results also show that the scheduling algorithm can guarantee fairness.

Published in:

Communications, 2009. ICC '09. IEEE International Conference on

Date of Conference:

14-18 June 2009