Dynamic spectrum access with two channel sensing in cognitive radio networks

Jin Lai*, Eryk Dutkiewicz, Ren Ping Liu, Rein Vesilo, Changliang Zheng

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

    5 Citations (Scopus)

    Abstract

    In this paper we present a novel dynamic spectrum sensing and access model in cognitive radio networks. This model allows secondary users (SUs) to sequentially sense two channels in a single time slot and provides coordinated access of multiple SUs to the available channels. The presented access model is formulated as a channel assignment optimization problem which is shown to be NP-hard. We subsequently propose and analyze a Markov chain based greedy channel assignment scheme (MCGA) which allows for sequential sensing of two channels with a priority order per time slot. Finally, we analyze and evaluate the performance of our approach in a saturated network. Our analytical results, validated by simulation, indicate that compared to the existing work, our approach can achieve significant improvements in terms of SU throughput and MAC delay.

    Original languageEnglish
    Title of host publication2012 IEEE International Conference on Communications, ICC 2012
    Place of PublicationPiscataway, NJ
    PublisherInstitute of Electrical and Electronics Engineers (IEEE)
    Pages1757-1762
    Number of pages6
    ISBN (Print)9781457720529
    DOIs
    Publication statusPublished - 2012
    Event2012 IEEE International Conference on Communications, ICC 2012 - Ottawa, ON, Canada
    Duration: 10 Jun 201215 Jun 2012

    Other

    Other2012 IEEE International Conference on Communications, ICC 2012
    CountryCanada
    CityOttawa, ON
    Period10/06/1215/06/12

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    Cite this

    Lai, J., Dutkiewicz, E., Liu, R. P., Vesilo, R., & Zheng, C. (2012). Dynamic spectrum access with two channel sensing in cognitive radio networks. In 2012 IEEE International Conference on Communications, ICC 2012 (pp. 1757-1762). [6364284] Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/ICC.2012.6364284