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Cell-by-Cell Dynamic Spectrum Allocation in Multi-Radio Environments

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2 Author(s)
Thilakawardana, D. ; Mobile Communications Research Group Centre for Communication Systems Research University of Surrey Guildford, GU2 7XH, UK ; Moessner, K.

The spectral efficiency gain achieved through a cell-by-cell dynamic spectrum allocation scheme is investigated in this work. A WCDMA hierarchical cell structure comprising (micro) UMTS and (macro) DVB-T cells is considered in the study and a simulator has been developed and implemented in C++. Both, temporal and spatial traffic load distributions are considered simultaneously in the cell-by-cell dynamic spectrum allocation scheme. The temporal traffic load distribution is predicted based on the real life spectrum occupancy measurements, taken in New York City in 2004. Simulation results show, under the defined scenarios, an increase of 39% in spectrum efficiency over the conventional fixed allocation scheme and a 9% increase over the previously studied contiguous dynamic spectrum allocation scheme.

Published in:

Wireless Conference 2006 - Enabling Technologies for Wireless Multimedia Communications (European Wireless), 12th European

Date of Conference:

2-5 April 2006