A Survey of Physical Layer Security Techniques for 5G Wireless Networks and Challenges Ahead

Physical layer security which safeguards data confidentiality based on the information-theoretic approaches has received significant research interest recently. The key idea behind physical layer security is to utilize the intrinsic randomness of the transmission channel to guarantee the security in...

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Bibliographic Details
Published in:IEEE journal on selected areas in communications 2018-04, Vol.36 (4), p.679-695
Main Authors: Wu, Yongpeng, Khisti, Ashish, Xiao, Chengshan, Caire, Giuseppe, Wong, Kai-Kit, Gao, Xiqi
Format: Article
Language:English
Subjects:
5G mobile communication
Cybersecurity
Encoding
full duplex
heterogeneous network
Information theory
massive MMO
Millimeter waves
mmWave
Network security
NOMA
Parity check codes
Physical layer
physical layer security
Wireless communications
Wireless networks
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Summary:Physical layer security which safeguards data confidentiality based on the information-theoretic approaches has received significant research interest recently. The key idea behind physical layer security is to utilize the intrinsic randomness of the transmission channel to guarantee the security in physical layer. The evolution toward 5G wireless communications poses new challenges for physical layer security research. This paper provides a latest survey of the physical layer security research on various promising 5G technologies, including physical layer security coding, massive multiple-input multiple-output, millimeter wave communications, heterogeneous networks, non-orthogonal multiple access, full duplex technology, and so on. Technical challenges which remain unresolved at the time of writing are summarized and the future trends of physical layer security in 5G and beyond are discussed.
ISSN:0733-8716
1558-0008
DOI:10.1109/JSAC.2018.2825560