A distributed resource management framework for interference mitigation in OFDMA femtocell networks

Authors:
Jongwon Yoon;Mustafa Y. Arslan;Karthikeyan Sundaresan;Srikanth V. Krishnamurthy;Suman Banerjee
Affiliations:
University of Wisconsin-Madison, Madison, WI, USA;University of California, Riverside, Riverside, CA, USA;NEC Labs America Inc., Princeton, NJ, USA;University of California, Riverside, Riverside, CA, USA;University of Wisconsin-Madison, Madison, WI, USA
Venue:
Proceedings of the thirteenth ACM international symposium on Mobile Ad Hoc Networking and Computing
Year:
2012

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Abstract

Next generation wireless networks (i.e., WiMAX, LTE) provide higher bandwidth and spectrum efficiency leveraging smaller (femto) cells with orthogonal frequency division multiple access (OFDMA). The uncoordinated, dense deployments of femtocells however, pose several unique challenges relating to interference and resource management in these networks. Towards addressing these challenges, we propose RADION, a distributed resource management framework that effectively manages interference across femtocells. RADION's core building blocks enable femtocells to opportunistically find the available resources in a completely distributed and efficient manner. Further, RADION's modular nature paves the way for different resource management solutions to be incorporated in the framework. We implement RADION on a real WiMAX femtocell testbed deployed in a typical indoor setting. We extensively evaluate two solutions integrated with RADION, both via prototype implementation and simulations and quantify their performance in terms of quick and efficient self-organization.