Physical-Layer Security in 6G Networks

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 managing tons information, often very sensitive. To trust services provided such network, security is mandatory feature design. In this scenario, physical-layer (PLS) can act as first line defense, even low-resourced in environments. This paper discusses challenges, solutions and visions PLS beyond-5G networks.