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Flexible Spectrum Access for Opportunistic Secondary Operation in Cognitive Radio Networks | IEEE Journals & Magazine | IEEE Xplore

Flexible Spectrum Access for Opportunistic Secondary Operation in Cognitive Radio Networks


Abstract:

In this letter a Discrete-Time Markov Chain (DTMC) framework is adopted to capture the effect of flexible spectrum channelization for the opportunistic access of secondar...Show More

Abstract:

In this letter a Discrete-Time Markov Chain (DTMC) framework is adopted to capture the effect of flexible spectrum channelization for the opportunistic access of secondary users (SUs) in a primary-secondary shared spectrum scenario. Two implementation alternatives are proposed: a fixed channelization scheme (FCS) and an adaptive channelization scheme (ACS). Moreover, service-type characterization of SUs is also addressed by defining time vs. volume based services. Results indicate the suitability of the ACS over the FCS.
Published in: IEEE Transactions on Communications ( Volume: 59, Issue: 10, October 2011)
Page(s): 2659 - 2664
Date of Publication: 21 July 2011

ISSN Information:


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