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Dynamic Spectrum Sharing Algorithm Between Two UMTS Operators in the UMTS Extension Band

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3 Author(s)
Salami, G. ; Centre for Commun. Syst. Res., Univ. of Surrey, Guildford, UK ; Thilakawardana, S. ; Tafazolli, R.

This paper proposes a fast scale spectrum sharing algorithm to exploit instantaneous spectrum use during the peak hour between two Universal Mobile Telecommunication System (UMTS) operators. The algorithm is based on a joint call admission framework between the two UMTS operators. The process is both coordinated and cooperative. An intelligent network agent is used. A simulation platform has been developed in order to evaluate the performance of the algorithm. The performance of the fast-scale Dynamic Spectrum Allocation (DSA) algorithm is compared with Fixed Spectrum Allocation (FSA) when no spectrum sharing takes place. The impact of uniform and non-uniform traffic on the performance of the algorithm has been investigated. The non-uniform traffic case includes hotspot cells which have higher call volume. The results show a decrease in the spectrum sharing gain from 5% (Uniform traffic) to 2% (Non-Uniform traffic) due to these hotspot cells.

Published in:

Communications Workshops, 2009. ICC Workshops 2009. IEEE International Conference on

Date of Conference:

14-18 June 2009