Safeguarding 5G wireless communication networks using physical layer security

Nan Yang, Lifeng Wang, Giovanni Geraci, Maged Elkashlan, Jinhong Yuan, Marco Di Renzo

    Research output: Contribution to journalArticlepeer-review

    817 Citations (Scopus)

    Abstract

    The fifth generation (5G) network will serve as a key enabler in meeting the continuously increasing demands for future wireless applications, including an ultra-high data rate, an ultrawide radio coverage, an ultra-large number of devices, and an ultra-low latency. This article examines security, a pivotal issue in the 5G network where wireless transmissions are inherently vulnerable to security breaches. Specifically, we focus on physical layer security, which safeguards data confidentiality by exploiting the intrinsic randomness of the communications medium and reaping the benefits offered by the disruptive technologies to 5G. Among various technologies, the three most promising ones are discussed: heterogenous networks, massive multiple-input multiple-output, and millimeter wave. On the basis of the key principles of each technology, we identify the rich opportunities and the outstanding challenges that security designers must tackle. Such an identification is expected to decisively advance the understanding of future physical layer security.

    Original languageEnglish
    Article number7081071
    Pages (from-to)20-27
    Number of pages8
    JournalIEEE Communications Magazine
    Volume53
    Issue number4
    DOIs
    Publication statusPublished - 1 Apr 2015

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