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Erschienen in:
2006 | OriginalPaper | Buchkapitel
Interference Aware Dynamic Subchannel Allocation in a Multi-cellular OFDMA System Based on Traffic Situation
verfasst von : Banani Roy, Chanchal Kumer Roy, Michael Einhaus
Erschienen in: Parallel and Distributed Processing and Applications
Verlag: Springer Berlin Heidelberg
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This paper presents the development and evaluation of a dynamic subchannel allocation scheme for downlink multi-cellular Orthogonal Frequency Division Multiple Access (OFDMA) systems. In the considered system each Access Point (AP) and the associated Mobile Terminals (MTs) are not operating on a frequency channel with a fixed bandwidth, rather the channel bandwidth for each AP is dynamically adapted according to the traffic load. The subchannels assignment procedure is based on quality estimations due to the interference measurements and the current traffic load. The developed dynamic subchannel allocation ensures Quality of Service (QoS), better traffic adaptability and higher spectrum efficiency with less computational complexity.