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Cognitive radio networks (CRNs) are drawing more and more attention along with the increasingly scarce spectrum resource. A CRN can be easily invalid due to stochastic activities of primary users. How to sustain the connectivity of CRNs and prolong the lifetime of CRNs become challenging issues. Inspired by the success of constructing a connected dominating set (CDS) as a virtual backbone in traditional...
Along with the spectrum resources increasingly scarce, the Cognitive Radio Networks (CRNs) are drawn more and more attention. Most of existing results on CRNs aim at utilizing wireless spectrum efficiently, however, the network becomes invalid easily due to stochastic activities of Primary Users (PUs). How to sustain the connectivity of the network becomes more and more challenging. In traditional...
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