Mobility

Dynamic Spectrum Allocation with Admission Control Based on Cognitive Radio for QoS Support in Multiple Wireless Network

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Executive Summary

Cognitive radio is an emerging technology in wireless access, aimed at vastly improving the way radio spectrum is utilized. In this paper, the authors investigate the performance improvement gained by applying cognitive radio to a multiple Wireless Service Providers (WSPs). They consider several WSPs and two types of users: primary (licensed) and secondary (unlicensed) users. Two different schemes are proposed for unlicensed users to manage their handoff. These two schemes are different in the sense that one allows to each WSP to give more priority to his own unlicensed users by dropping low priority users, while the other does not allow that.

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