Performance analysis of incremental opportunistic relaying over identically and non-identically distributed cooperative paths

Kyu Sung Hwang, Young Chai Ko, Mohamed Slim Alouini

    Research output: Contribution to journalArticlepeer-review

    115 Citations (Scopus)

    Abstract

    In this paper, we consider an incremental relaying protocol based on an amplify-and-forward transmission in conjunction with the best relay selection scheme over non-identically distributed relay channels. In order to satisfy the spectral efficiency and the bit error rate (BER) requirements, adaptive modulation is applied to our proposed scheme. We derive the average spectral efficiency, average BER and outage probability for the performance analysis of our proposed scheme. For a more tractable analysis, we start with an upper bound for the combined signal-to-noise ratio at the destination and provide closed-form expressions for independent non-identically distributed Rayleigh fading conditions. Our analytical-based numerical results are validated by some computer-based simulations. These results show that our proposed scheme leads to a considerable improvement in the performance of cooperative diversity systems.

    Original languageEnglish
    Article number4907461
    Pages (from-to)1953-1961
    Number of pages9
    JournalIEEE Transactions on Wireless Communications
    Volume8
    Issue number4
    DOIs
    Publication statusPublished - 2009 Apr

    Bibliographical note

    Funding Information:
    This work was supported in part by the IT R&D program of MKE/IITA [2008-F-006-01, Wireless Local Area Communication Systems on Tera Hertz Band] and in part by a NPRP grant from the Qatar National Research Fund (a member of Qatar Foundation). Digital Object Identifier 10.1109/TWC.2009.080381

    Keywords

    • Adaptive modulation
    • Amplify-and-forward
    • Cooperative diversity
    • Incremental relaying
    • Opportunistic relaying

    ASJC Scopus subject areas

    • Computer Science Applications
    • Electrical and Electronic Engineering
    • Applied Mathematics

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