Distributed Resource Allocation in Two-Hierarchy Networks

ETRI Journal

关键词: cross-tier interference;    femtocell;    macrocell;    Distributed resource allocation;   

Others  :  1186397
DOI  :  10.4218/etrij.12.0111.0451

【 摘 要 】

In this paper, a new distributed resource allocation algorithm is proposed to alleviate the cross-tier interference for orthogonal frequency division multiplexing access macrocell and femtocell overlay. Specifically, the resource allocation problem is modeled as a non-cooperative game. Based on game theory, we propose an iterative algorithm between subchannel and power allocation called distributed resource allocation which requires no coordination among the two-hierarchy networks. Finally, a macrocell link quality protection process is proposed to guarantee the macrocell UE's quality of service to avoid severe cross-tier interference from femtocells. Simulation results show that the proposed algorithm can achieve remarkable performance gains as compared to the pure waterfilling algorithm.

   

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