Physical-layer security in 6G networks

Mucchi, Lorenzo and Jayousi, Sara and Caputo, Stefano and Panayirci, Erdal and Shahabuddin, Shahriar and Bechtold, Jonathan and Morales, Iván and Stoica, Razvan-Andrei and Abreu, Giuseppe and Haas, Harald (2021) Physical-layer security in 6G networks. IEEE Open Journal of the Communications Society, 2. pp. 1901-1914. ISSN 2644-125X (

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The sixth generation (6G) of mobile network will be composed by different nodes, from macro-devices (satellite) to nano-devices (sensors inside the human body), providing a full connectivity fabric all around us. These heterogeneous nodes constitute an ultra dense network managing tons of information, often very sensitive. To trust the services provided by such network, security is a mandatory feature by design. In this scenario, physical-layer security (PLS) can act as a first line of defense, providing security even to low-resourced nodes in different environments. This paper discusses challenges, solutions and visions of PLS in beyond-5G networks.