Channel Reservation Strategies for Multiple Secondary Users in Cognitive Radio Networks

Qiang Peng; Yan Jiang; Gan Liu; Fei Cui; Guo Bao He; Wei Min Wu

doi:10.4028/www.scientific.net/AMR.989-994.3889

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 989-994Channel Reservation Strategies for Multiple...

Channel Reservation Strategies for Multiple Secondary Users in Cognitive Radio Networks

Abstract:

In cognitive radio networks (CRNs), improving the performance of SUs is the main aspect of present study. In this paper, we focus on the optimal access strategy to provide QoS guarantees for multi-services. The contribution of this paper is as follows. Firstly, we formulate and solve the optimal spectrum access problem with different channel reservation scheme. Secondly, we take account of buffer for handoff secondary users and propose a handoff scheme for multi-services. In addition, the computation complexity of solving the optimal channel reservation problem is simplified by a binary search. The system is analyzed using a continuous-time Markov chain model. The numerical results confirm the validity of the proposed scheme.

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Periodical:

Advanced Materials Research (Volumes 989-994)

Pages:

3889-3892

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https://doi.org/10.4028/www.scientific.net/AMR.989-994.3889

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Online since:

July 2014

Authors:

Qiang Peng, Yan Jiang*, Gan Liu, Fei Cui, Guo Bao He, Wei Min Wu

Keywords:

Channel Reservation, Cognitive Radio Networks, Markov Chain, QoS

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