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http://dx.doi.org/10.11627/jkise.2012.35.4.162

The Analysis of an Opportunistic Spectrum Access with a Strict T-preemptive Priority Discipline  

Kim, Kilhwan (Department of Management Engineering, Sangmyung University)
Publication Information
Journal of Korean Society of Industrial and Systems Engineering / v.35, no.4, 2012 , pp. 162-170 More about this Journal
Abstract
We propose a new priority discipline called the strict T-preemptive priority discipline, and derive the waiting time distributions of each class in the strict T-preemptive priority M/G/1 queue. Using this queueing analysis, we evaluate the performance of an opportunistic spectrum access in cognitive radio networks, where a communication channel is divided into time slots, a licensed primary user is assigned to one channel, and multiple unlicensed secondary users may opportunistically exploit time slots unused by the primary user. We also present a numerical example of the analysis of the opportunistic spectrum access where the arrival rates and service times distributions of each users are identical.
Keywords
Priority Queues; Strict T-Preemptive Priority Discipline; Opportunistic Spectrum Access; Cognitive Radio Networks;
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