Multiple Codebook-Based Non-Orthogonal Multiple Access

Ameha T. Abebe, Chung G. Kang

    Research output: Contribution to journalArticlepeer-review

    11 Citations (Scopus)

    Abstract

    Observing that employing a single codebook (CB) per user transmission block in the conventional CB-based non-orthogonal multiple access (NOMA) schemes doesn't exploit code and interference diversity and has limitations in some unfavorable channel conditions, this letter presents multiple CB-based NOMA (MC-NOMA) in which multiple CBs are employed by a user in a round robin manner. Performance of schemes such as sparse code multiple access (SCMA) and pattern division multiple access (PDMA) is improved by MC-NOMA without incurring any additional receiver complexity and loss in spectral efficiency. Furthermore, to fully exploit code and interference diversity for MC-NOMA, CBs assignment algorithm is presented.

    Original languageEnglish
    Article number8957418
    Pages (from-to)683-687
    Number of pages5
    JournalIEEE Wireless Communications Letters
    Volume9
    Issue number5
    DOIs
    Publication statusPublished - 2020 May

    Bibliographical note

    Funding Information:
    Manuscript received December 15, 2019; accepted January 4, 2020. Date of publication January 13, 2020; date of current version May 8, 2020. This work was supported in part by Samsung Research in Samsung Electronics and in part by Korea University. The associate editor coordinating the review of this article and approving it for publication was B. Makki. (Corresponding author: Chung G. Kang.) The authors are with the Department of Electrical Engineering, Korea University, Seoul 136-713, South Korea (e-mail: [email protected]; [email protected]). Digital Object Identifier 10.1109/LWC.2020.2965939

    Publisher Copyright:
    © 2012 IEEE.

    Keywords

    • Non-orthogonal multiple access (NOMA)
    • multiple codebook NOMA (MC-NOMA)
    • pattern division multiple access (PDMA)
    • sparse code multiple access (SCMA)

    ASJC Scopus subject areas

    • Control and Systems Engineering
    • Electrical and Electronic Engineering

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