Advanced interference mitigation with frequency reuse schemes in the IEEE 802.16m uplink

Authors:
Florian Wamser;David Mittelstädt;Dirk Staehle;Phuoc Tran-Gia
Affiliations:
University of Würzburg, Würzburg, Germany;University of Würzburg, Würzburg, Germany;University of Würzburg, Würzburg, Germany;University of Würzburg, Würzburg, Germany
Venue:
Proceedings of the 13th ACM international conference on Modeling, analysis, and simulation of wireless and mobile systems
Year:
2010

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Abstract

Fractional frequency reuse is one of the key interference mitigation schemes of the IEEE 802.16m draft standard. This paper proposes a resource allocation strategy for the uplink fractional frequency reuse in the variant soft frequency reuse. Soft frequency reuse means that the resources of every sector are separated into a home partition and two side partitions. While resources of the home partition may be allocated to all users, resources of the side partitions are available for cell center users only. The main contribution of this paper is to use the most robust and power-efficient modulation and coding schemes on the side partitions as long as resources are available. A simulation study shows that with non-saturated users the system capacity can be increased when preferring power-efficient modulation and coding schemes on the side partitions.