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A New Sub-carrier and Power Allocation Algorithm in Multi-user OFDM Systems

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3 Author(s)
Renlin Dai ; Nanchang Univ., Nanchang ; Chisheng Li ; Guojin Wan

This paper describes a new resource allocation algorithm which performs dynamic sub-carrier and power allocation in multi-user OFDM systems. The aim is to maximize the sum of data rate while achieving proportional fairness among users under a total power and bit error rate constraint. Meanwhile, we maintain individual minimum rate requirements and QoS constraints. Simulation results are shown to compare the performance of the proposed algorithm with that of the previous algorithms, such as LINEAR, ITERATIVE and static TDMA. And the proposed method yields higher data rates and better performance in simulation. We also simulate the relation

Published in:

Microwave and Millimeter Wave Technology, 2007. ICMMT '07. International Conference on

Date of Conference:

18-21 April 2007

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