Scheme of cognitive channel allocation for multiple services without spectrum handover

Authors:
Haoman Xu;Yinglei Teng;Mei Song;Yifei Wei;Yong Zhang
Affiliations:
ICN&CAD Center, Beijing University of Posts and Telecommunications, Beijing, P.R.C.;ICN&CAD Center, Beijing University of Posts and Telecommunications, Beijing, P.R.C.;ICN&CAD Center, Beijing University of Posts and Telecommunications, Beijing, P.R.C.;ICN&CAD Center, Beijing University of Posts and Telecommunications, Beijing, P.R.C.;ICN&CAD Center, Beijing University of Posts and Telecommunications, Beijing, P.R.C.
Venue:
ICPCA/SWS'12 Proceedings of the 2012 international conference on Pervasive Computing and the Networked World
Year:
2012

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Abstract

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.