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Integrated Downlink Resource Management for Multiservice WiMAX Networks

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3 Author(s)
Bo Rong ; Dept. of Electr. & Comput. Eng., Puerto Rico Univ., Mayaguez ; Yi Qian ; Kejie Lu

In this paper, we propose a novel downlink resource management framework for multiservice WiMAX (worldwide interoperability for microwave access) networks. Our framework consists of two major components: adaptive power allocation (APA) and call admission control (CAC). We formulate each of them as an optimization problem, where the demands of both WiMAX service providers and subscribers are taken into account. To solve the optimization problems, we develop a fairness-constrained greedy revenue algorithm for downlink APA optimization and a utility-constrained greedy approximation algorithm for downlink CAC optimization. Our simulation results show that, when combining the APA and CAC optimization methods together, the proposed resource management framework can meet the expectations of both service providers and subscribers

Published in:

Mobile Computing, IEEE Transactions on  (Volume:6 ,  Issue: 6 )