Throughput enhancing cooperative spectrum sensing strategies for cognitive radios

Kyounghwan Lee, Aylin Yener

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

    15 Scopus citations

    Abstract

    We consider a wireless communication scenario where multiple unlicensed cognitive users seek to access unused frequency channels licensed to the primary users. A main challenge in this case is to design a spectrum sensing strategy that aids the cognitive users acquire the unused spectrum and limits the interference to primary users. Towards addressing this challenge, we propose a cooperative spectrum sensing strategy in which cognitive users collaborate to share their decisions regarding spectrum occupancy of the primary users. We demonstrate the effectiveness of the proposed cooperative sensing strategy which aims to equip all cognitive users with the occupancy information of as many channels as possible, and observe that the proposed cooperative spectrum sensing strategy improves the throughput of the cognitive users and decreases the interference to the primary users as compared to the non-cooperative scheme.

    Original languageEnglish (US)
    Title of host publicationConference Record of the 41st Asilomar Conference on Signals, Systems and Computers, ACSSC
    Pages2045-2049
    Number of pages5
    DOIs
    StatePublished - Dec 1 2007
    Event41st Asilomar Conference on Signals, Systems and Computers, ACSSC - Pacific Grove, CA, United States
    Duration: Nov 4 2007Nov 7 2007

    Publication series

    NameConference Record - Asilomar Conference on Signals, Systems and Computers
    ISSN (Print)1058-6393

    Other

    Other41st Asilomar Conference on Signals, Systems and Computers, ACSSC
    CountryUnited States
    CityPacific Grove, CA
    Period11/4/0711/7/07

    All Science Journal Classification (ASJC) codes

    • Signal Processing
    • Computer Networks and Communications

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