Mobility

Joint Bandwidth and Power Allocations for Cognitive Radio Networks With Imperfect Spectrum Sensing

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Executive Summary

In this paper, the authors study the joint bandwidth and power allocations for Cognitive Radio Networks (CRNs), which opportunistically operate on a set of channels unused by Primary Users (PUs) networks. Their objective is to minimize the total power allocation of all coexisting Secondary Users (SUs) in the network and guarantee their quality of service (QoS) requirements at the same time. Specifically, they consider the imperfect spectrum sensing of CRNs in their formulation and adopt the interference constraint to address PUs' protection when miss-detection happens. They, then propose an efficient joint allocation algorithm to solve the formulated problem. Sufficient numerical simulations are carried out to verify the validity of the proposed algorithm (including convergence and robustness to asynchronism).

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