Waveform optimization for large-scale multi-antenna multi-sine wireless power transfer

Yang Huang, Bruno Clerckx

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

    12 Citations (Scopus)

    Abstract

    Wireless power transfer (WPT) is expected to be a technology reshaping the landscape of low-power applications such as the Internet of Things, machine-to-machine communications and radio frequency identification networks. Although there has been some progress towards multi-antenna multi-sine WPT design, the large-scale design of WPT, reminiscent of massive multiple-input multiple-output (MIMO) in communications, remains an open problem. Considering the nonlinear rectifier model, a multiuser waveform optimization algorithm is derived based on successive convex approximation (SCA). A lower-complexity algorithm is derived based on asymptotic analysis and sequential approximation (SA). It is shown that the difference between the average output voltage achieved by the two algorithms can be negligible provided the number of antennas is large enough. The performance gain of the nonlinear model based design over the linear model based design can be large, in the presence of a large number of tones.

    Original languageEnglish
    Title of host publicationSPAWC 2016 - 17th IEEE International Workshop on Signal Processing Advances in Wireless Communications
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    ISBN (Electronic)9781509017492
    DOIs
    Publication statusPublished - 2016 Aug 9
    Event17th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2016 - Edinburgh, United Kingdom
    Duration: 2016 Jul 32016 Jul 6

    Publication series

    NameIEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC
    Volume2016-August

    Other

    Other17th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2016
    Country/TerritoryUnited Kingdom
    CityEdinburgh
    Period16/7/316/7/6

    Bibliographical note

    Publisher Copyright:
    © 2016 IEEE.

    Copyright:
    Copyright 2017 Elsevier B.V., All rights reserved.

    Keywords

    • Wireless power transfer
    • convex optimization
    • massive MIMO
    • nonlinear model

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Computer Science Applications
    • Information Systems

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