On the DoF of Parallel MISO BCs with Partial CSIT: Total order and separability

Hamdi Joudeh, Bruno Clerckx

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

    Abstract

    We study the degrees of freedom (DoF) of a K-user parallel MISO broadcast channel with arbitrary levels of partial CSIT over each subchannel. We derive a sum-DoF upperbound which depends on the average CSIT quality of each user. This upperbound is shown to be tight under total order, i.e. when the order of users with respect to their CSIT qualities is preserved over all subchannels. In this case, it is shown that separate coding over each subchannel is optimum in a sum-DoF sense.

    Original languageEnglish
    Title of host publication2017 IEEE Global Communications Conference, GLOBECOM 2017 - Proceedings
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages1-6
    Number of pages6
    ISBN (Electronic)9781509050192
    DOIs
    Publication statusPublished - 2017 Jul 1
    Event2017 IEEE Global Communications Conference, GLOBECOM 2017 - Singapore, Singapore
    Duration: 2017 Dec 42017 Dec 8

    Publication series

    Name2017 IEEE Global Communications Conference, GLOBECOM 2017 - Proceedings
    Volume2018-January

    Other

    Other2017 IEEE Global Communications Conference, GLOBECOM 2017
    Country/TerritorySingapore
    CitySingapore
    Period17/12/417/12/8

    Bibliographical note

    Funding Information:
    This work is partially supported by the U.K. Engineering and Physical Sciences Research Council (EPSRC) under grant EP/N015312/1.

    Publisher Copyright:
    © 2017 IEEE.

    ASJC Scopus subject areas

    • Computer Networks and Communications
    • Hardware and Architecture
    • Safety, Risk, Reliability and Quality

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