… Finally, we suggest applying physical layer security at two levels: the sub-… schemes such
as data encryption and integrity, device/message authentication, and/or availability schemes, …

… Abstract—We analyze the physical layer (PHY) security of a communication scheme …
probability, and we show that the PHY security can be considerably enhanced when multiple …

… [94] considered the problem of resource allocation scheme for physical layer security in
cooperative OFDM networks using amplify-andforward (AF) strategy. To maximize the secrecy …

… knowledge, and the achieved security can be quantified precisely. … schemes in addition
to the exploitation of any available channel state information, physical layer security schemes …

… This is important to evaluate the usefulness of the physical layer based security schemes
and evaluate their performance in a practical transmission environment. Both WiFi …

… schemes that could be used to achieve physical layer … physical layer security for wireless
networks have been discussed in a tutorial manner. Numerous existing physical layer security …

… to show the physicallayer security improvement by exploiting … direct transmission as a
benchmark scheme, where the source … selection scheme for physical-layer security improvement. …

… to implement any extra security schemes or algorithms on other layers above the physical
layer. This survey introduces the fundamental theories of PHY-security, covering confidentiality …

… Although security is typically addressed via cryptographic … security at the physical layer,
following the pioneering work of [9]. Recently, wireless physical (PHY) layer based security from …

… Before designing a secure transmission scheme with limited power and energy, we first
analyse the factors of power consumption in wireless networks [163]. According to [164], the total …