Greedy tree search for Internet of Things signal detection

Jaeseok Lee, Byonghyo Shim

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

    Abstract

    In this paper, we propose a greedy tree search algorithm for Internet of Things (IoT) signal detection. The proposed method, referred to as matching pursuit with integer tree search (MP-ITS), recovers integer sparse vector (sparse vector whose nonzero elements are chosen from a set of finite alphabets) using the tree search. In order to control the computational burden yet maintains the effectiveness of the tree search, MP-ITS employs two strategies, viz., pre-screening to put a limitation on columns of the channel matrix and tree pruning to eliminate unpromising candidates from the tree. We show from the restricted isometry property (RIP) analysis and empirical simulations on realistic IoT scenarios that the proposed method is effective in recovering the sparse vector with integer constraint.

    Original languageEnglish
    Title of host publicationProceedings - 2015 IEEE International Symposium on Information Theory, ISIT 2015
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages2563-2567
    Number of pages5
    ISBN (Electronic)9781467377041
    DOIs
    Publication statusPublished - 2015 Sept 28
    EventIEEE International Symposium on Information Theory, ISIT 2015 - Hong Kong, Hong Kong
    Duration: 2015 Jun 142015 Jun 19

    Publication series

    NameIEEE International Symposium on Information Theory - Proceedings
    Volume2015-June
    ISSN (Print)2157-8095

    Other

    OtherIEEE International Symposium on Information Theory, ISIT 2015
    Country/TerritoryHong Kong
    CityHong Kong
    Period15/6/1415/6/19

    Bibliographical note

    Publisher Copyright:
    © 2015 IEEE.

    ASJC Scopus subject areas

    • Theoretical Computer Science
    • Information Systems
    • Modelling and Simulation
    • Applied Mathematics

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