06087865

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06087865 Necker, Marc C. A novel algorithm for distributed dynamic interference coordination in cellular networks. Luttenberger, Norbert (ed.) et al., 17th GI/ITG conference on communication in distributed systems (KiVS 2011). Proceedings of the conference, March 8--11, 2011, Kiel, Germany. Wadern: Schloss Dagstuhl -- Leibniz Zentrum f\"ur Informatik (ISBN 978-3-939897-27-9). OASIcs -- OpenAccess Series in Informatics 17, 233-238, electronic only (2011). 2011 Wadern: Schloss Dagstuhl -- Leibniz Zentrum f\"ur Informatik EN 3GPP LTE 802.16e OFDMA WiMAX beamforming graph coloring interference coordination scheduling

doi:10.4230/OASIcs.KiVS.2011.233

Summary: Wireless systems based on orthogonal frequency division multiple access (OFDMA) multiplex different users in time and frequency. One of the main problems in OFDMA-systems is the inter-cell interference. A promising approach to solve this problem is interference coordination (IFCO). In this paper, we present a novel distributed IFCO scheme, where a central coordinator communicates coordination information in regular time intervals. This information is the basis for a local inner optimization in every basestation. The proposed scheme achieves an increase of more than 100\% with respect to the cell edge throughput, and a gain of about 30\% in the aggregate spectral efficiency compared to a reuse 3 system.