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An HMM-based spectrum access algorithm for cognitive radio systems

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Details

Original languageEnglish
Title of host publication2015 International Conference on Information and Communication Technology Research, ICTRC 2015
PublisherThe Institute of Electrical and Electronics Engineers, Inc.
Pages116-119
Number of pages4
ISBN (Print)9781479989669
DOIs
Publication statusPublished - 14 Jul 2015
Publication typeA4 Article in a conference publication
EventInternational Conference on Information and Communication Technology Research - , United Arab Emirates
Duration: 1 Jan 2015 → …

Conference

ConferenceInternational Conference on Information and Communication Technology Research
CountryUnited Arab Emirates
Period1/01/15 → …

Abstract

In this paper, we propose an improved spectrum access algorithm for cognitive radio applications using a Hidden Markov Model (HMM) for learning the primary user channel usage pattern. The proposed scheme maximizes the channel utilization without causing significant interference to the primary user. Simulation results show that the proposed algorithm provides about 3 times improvement in channel utilization compared to the system proposed in [1], with a slight degradation in collision probability. It is also observed that the proposed scheme performance is robust to variations in the primary user behavior.

Keywords

  • cognitive radio, hidden Markov models, spectrum access

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