Multi-Cell Performance of Grant-Free and Non-Orthogonal Multiple Access

Ameha T. Abebe, Joonsung Lee, Minjoog Rim, Chung G. Kang

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

    5 Citations (Scopus)

    Abstract

    The compressive sensing-based random access may get impacted largely by other cell interference (OCI), which may shatter the sparsity of the received signal model unless the signature space assignment among interfering cells is carefully handled. In this paper, we investigate the performance of multi-sequence spreading-based random access (MSRA) scheme under multi-cell environment. In particular, a grant-free random access scenario is considered to indicate its particular attributes that fundamentally affect the cellular performance. We also give the performance of MSRA in comparison with sparse code multiple access (SCMA). We show that if a proper signature assignment is undertaken, the OCI in MSRA and other CS-based schemes can be modeled as a dispersed noise which does not critically undermine the underlying sparsity.

    Original languageEnglish
    Title of host publication2017 IEEE 85th Vehicular Technology Conference, VTC Spring 2017 - Proceedings
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    ISBN (Electronic)9781509059324
    DOIs
    Publication statusPublished - 2017 Nov 14
    Event85th IEEE Vehicular Technology Conference, VTC Spring 2017 - Sydney, Australia
    Duration: 2017 Jun 42017 Jun 7

    Publication series

    NameIEEE Vehicular Technology Conference
    Volume2017-June
    ISSN (Print)1550-2252

    Other

    Other85th IEEE Vehicular Technology Conference, VTC Spring 2017
    Country/TerritoryAustralia
    CitySydney
    Period17/6/417/6/7

    Bibliographical note

    Funding Information:
    ————————————————————————————– This work was supported in part by Institute for Information & communications Technology Promotion (IITP) grant funded by the Korea government (MSIP) (No. R0101-17-244, Development of 5G Mobile Communication Technologies for Hyper-connected smart services) and in part by the Nokia donation program.

    Publisher Copyright:
    © 2017 IEEE.

    Keywords

    • Machine-Type Communication (MTC)
    • Multi-Sequence Spreading Random Accees (MSRA)
    • Multiuser Detection (MUD)
    • Other-Cell Interference (OCI)

    ASJC Scopus subject areas

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

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