Friendly Jamming in LoRa Physical Layer Using Imperfect Orthogonality of Spreading Factor

Soo Jung Moon, Wonjun Lee

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

    3 Citations (Scopus)

    Abstract

    As the Internet of Things (IoT) requires communication technologies to interconnect many devices, a low-power wide-Area network (LPWAN), especially LoRa, has emerged due to its power and range benefits. Since the physical layer of LoRa remains susceptible to deliberate jamming attacks, we propose a friendly jamming scheme that protects the legitimate communication against attacks by using the imperfect orthogonality of the spreading factor (SF). SF imperfect orthogonality allows a stronger signal to disrupt weaker signal with different SF, therefore we use the strong friendly jamming signal to hide the legitimate signal from attackers. The legitimate receiver can cancel the friendly jamming signal and retrieve the initial data. We implement the scheme with software-defined radios, showing that our friendly jamming scheme is efficacious to impede the jamming attack.

    Original languageEnglish
    Title of host publication36th International Conference on Information Networking, ICOIN 2022
    PublisherIEEE Computer Society
    Pages423-428
    Number of pages6
    ISBN (Electronic)9781665413329
    DOIs
    Publication statusPublished - 2022
    Event36th International Conference on Information Networking, ICOIN 2022 - Virtual, Jeju Island, Korea, Republic of
    Duration: 2022 Jan 122022 Jan 15

    Publication series

    NameInternational Conference on Information Networking
    Volume2022-January
    ISSN (Print)1976-7684

    Conference

    Conference36th International Conference on Information Networking, ICOIN 2022
    Country/TerritoryKorea, Republic of
    CityVirtual, Jeju Island
    Period22/1/1222/1/15

    Bibliographical note

    Publisher Copyright:
    © 2022 IEEE.

    Keywords

    • IoT
    • LPWAN
    • LoRa
    • friendly jamming
    • spreading factor

    ASJC Scopus subject areas

    • Computer Networks and Communications
    • Information Systems

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