Spectrum pooling: an innovative strategy for the enhancement of spectrum efficiency
IEEE Communications Magazine
A survey on spectrum management in cognitive radio networks
IEEE Communications Magazine
Decentralized cognitive MAC for opportunistic spectrum access in ad hoc networks: A POMDP framework
IEEE Journal on Selected Areas in Communications
A POMDP-based spectrum handoff protocol for partially observable cognitive radio networks
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Spectrum management techniques with QoS provisioning in cognitive radio networks
ISWPC'10 Proceedings of the 5th IEEE international conference on Wireless pervasive computing
Spectrum handoff strategies for multiple channels cognitive radio network
Proceedings of the ACM CoNEXT Student Workshop
Coordination of multi-link spectrum handoff in multi-radio multi-hop cognitive networks
Journal of Parallel and Distributed Computing
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Spectrum handoff occurs when the primary users appear in the licensed band occupied by the secondary users. Spectrum handoff procedures aim to help the secondary users to vacate the occupied licensed spectrum and find suitable target channel to resume the unfinished transmission. In this paper, we discuss how to select the target channels to minimize the total service time with multiple spectrum handoffs. We propose a preemptive resume priority (PRP) M/G/1 queueing network model to evaluate total service time for various target channels selections. Then, we suggest a low-complexity greedy algorithm to select target channels. Numerical results show that a spectrum handoff scheme based on greedy selection strategy can reduce total service time compared to the randomly selection scheme.