The broadcast nature of wireless communication systems makes wireless trans-mission extremely susceptible to eavesdropping and even malicious interference.Physical layer security technology can e ectively protect the ...The broadcast nature of wireless communication systems makes wireless trans-mission extremely susceptible to eavesdropping and even malicious interference.Physical layer security technology can e ectively protect the private information sent by the trans-mitter from being listened to by illegal eavesdroppers,thus ensuring the privacy and security of communication between the transmitter and legitimate users.Thus,the main design goal of physical layer security is to increase the performance di erence between the link of the legitimate receiver and that of the eavesdropper using well-designed transmission schemes.The development of mobile communication presents new challenges to physical layer security research.This paper provides a survey of the physical layer security research on various promising mobile technologies from secure key generation and keyless techniques,including secure key generation,directional modulation(DM),spatial modulation(SM),covert communication,and intelligent re ecting surface(IRS)-aided communication.Finally,the future topics and the unresolved technical challenges are presented in physical layer security for mobile communications.展开更多
基金the National Natural Science Foundation of China(Nos.62071234,62071289,61972093,and 62001116)the Hainan Province Science and Technology Special Fund(ZDKJ2021022)+2 种基金the Scienti c Research Fund Project of Hainan University under Grant KYQD(ZR)-21008the National Key R&D Program of China under Grant 2018YFB180110the Natural Science Foundation of Fujian Province under Grant 2020J05106.
文摘The broadcast nature of wireless communication systems makes wireless trans-mission extremely susceptible to eavesdropping and even malicious interference.Physical layer security technology can e ectively protect the private information sent by the trans-mitter from being listened to by illegal eavesdroppers,thus ensuring the privacy and security of communication between the transmitter and legitimate users.Thus,the main design goal of physical layer security is to increase the performance di erence between the link of the legitimate receiver and that of the eavesdropper using well-designed transmission schemes.The development of mobile communication presents new challenges to physical layer security research.This paper provides a survey of the physical layer security research on various promising mobile technologies from secure key generation and keyless techniques,including secure key generation,directional modulation(DM),spatial modulation(SM),covert communication,and intelligent re ecting surface(IRS)-aided communication.Finally,the future topics and the unresolved technical challenges are presented in physical layer security for mobile communications.
