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Erschienen in:
2013 | OriginalPaper | Buchkapitel
Scheme of Cognitive Channel Allocation for Multiple Services without Spectrum Handover
verfasst von : Haoman Xu, Yinglei Teng, Mei Song, Yifei Wei, Yong Zhang
Erschienen in: Pervasive Computing and the Networked World
Verlag: Springer Berlin Heidelberg
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In the system of primary users and cognitive users sharing spectrum resource, dynamic spectrum allocation becomes a key issue to face with, especially when the services are various. A cognitive channel allocation scheme is put forward to maximize the throughput and to reduce the blocking rate of multiple services in the premise of not increasing the interruption probability. In the scheme, cognitive users do not need the capability of spectrum handover, and just by adjusting the index of channels timely, the allocation becomes orderly and simple. Markov chain is used to analyze the performance of the proposed allocation scheme. The numerical results show that the proposed scheme can achieve better performances.