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In this paper, we study the routing and resource allocation problem in multi-hop cognitive radio networks. The collision between primary users (PUs) and secondary users (SUs) is taken into consideration, which is unavoidable if activities of PUs and SUs are not synchronized with each other. Our objective is to maximize the average throughput of a secondary(More)
In multi-hop cognitive radio networks (CRNs), channel switching and rerouting for a secondary user's (SU's) traffic flow protect the transmission of the primary users (PUs); however, due to the extra overhead and delay, they deteriorate the quality of the SU's transmission. In this paper, aiming to achieve a stable end-to-end delivery for a secondary flow,(More)
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