An Improved Inter-cell Interference Coordination (ICIC) for OFDMA multi-cell systems

Conference: European Wireless 2013 - 19th European Wireless Conference
04/16/2013 - 04/18/2013 at Guildford, UK

Proceedings: European Wireless 2013

Pages: 5Language: englishTyp: PDF

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Kosta, Chrysovalantis (University of Surrey, Centre for Communication Systems Research (CCSR), Guildford, Surrey, United Kingdom)
Hunt, Bernard; Quddus, Atta U.; Tafazolli, Rahim (University of Surrey, Centre for Communication Systems Research (CCSR))

In this paper, we propose an improved Inter-Cell Interference Coordination (ICIC) for emerging multi-cell wireless systems. The ICIC provided in this paper gives a proper inter-cell resource allocation by employing the concept of interference avoidance and describes the inter-relationship of all base stations in a holistic way. We use a semi-centralized ICIC scheme which divides the global optimum problem into a multicell and multi-user problem. Our performance metrics are the aggregate sector throughput and the critical throughput of a multi-cell system. The critical throughput is defined as the 5th percentile of the aggregate user throughput. Simulation results confirm the increased effectiveness of the proposed ICIC in both metrics over a number of state-of-the-art interference avoidance schemes. Keywords - component; Inter-cell RRM; Semi-centralized RRM; Linear/Binary Optimization; Inter-Cell Interference Coordination.