Analysis of Cognitive Radio Networks Based on a Queueing Model With Server Interruptions
In this paper, the authors introduce a queueing approach with server interruptions to analyze the performance of a Cognitive Radio (CR) link subject to recurrent failures and interruptions. This general model can be used to analyze the traffic metrics as a function of different recovery schemes, channel bandwidth variations and service differentiation. As a first step, they solve in this paper the queueing model without service variation and differentiation. Numerical results to illustrate the analysis accuracy are provided. Wireless services have recently enjoyed tremendous success because users increasingly appreciate the ability to access information anywhere and anytime.