摘要
As the development of next-generation(NextG)communication networks continues,tremendous devices are accessing the network and the amount of information is exploding.However,with the increase of sensitive data that requires confidentiality to be transmitted and stored in the network,wireless network security risks are further amplified.Physical-layer key generation(PKG)has received extensive attention in security research due to its solid information-theoretic security proof,ease of implementation,and low cost.Nevertheless,the applications of PKG in the NextG networks are still in the preliminary exploration stage.Therefore,we survey existing research and discuss(1)the performance advantages of PKG compared to cryptography schemes,(2)the principles and processes of PKG,as well as research progresses in previous network environments,and(3)new application scenarios and development potential for PKG in NextG communication networks,particularly analyzing the effect and prospects of PKG in massive multiple-input multipleoutput(MIMO),reconfigurable intelligent surfaces(RISs),artificial intelligence(AI)enabled networks,integrated space-air-ground network,and quantum communication.Moreover,we summarize open issues and provide new insights into the development trends of PKG in NextG networks.
基金
supported in part by the National Key R&D Program of China under Grant 2022YFB2902202
in part by the National Natural Science Foundation of China(No.U22A2001,No.62171121)
in part by the Natural Science Foundation of Jiangsu Province under Grant BK20211160
作者简介
Corresponding author:Guyue Li,email:guyuelee@seu.edu.cn,received the B.Sc.degree in Information Science and Technology and the Ph.D.degree in Information Security from Southeast University,Nanjing,China,in 2011 and 2017,respectively.From June 2014 to August 2014,she was a Visiting Student with the Department of Electrical Engineering,Tampere University of Technology,Finland.She is currently an associate professor with the School of Cyber Science and Engineering,Southeast University.Her research interests include physical layer security,secret key generation,radio frequency fingerprint and link signature;Qingjiang Xiao,received the B.Eng.degree from the College of Computer and Data Science,Fuzhou University.He is currently pursuing the M.Sc.degree with the School of Cyber Science and Engineering,Southeast University.His current research interests include physical layer security and secret key generation;Jinrong Zhao,received the B.Sc.degree in computer science and technology from Shenyang Aerospace University,Shenyang,China,in 2021.She is currently pursuing the M.S.degree in electronic information with Southeast University,Nanjing,China.Her research interests include physical layer security and secret key generation;Sheng Feng,received the B.Eng.degree in electronic information from the School of Information and Communication Engineering,Nanjing Institute of Technology,Nanjing,China,in 2022.He is currently working toward the M.Eng.degree in the School of Cyber Science and Engineering,Southeast University,Nanjing,China.His research interests include physical layer security and secret key generation;Aiqun Hu,received the B.Sc.(Eng.),the M.Sc.(Eng.)and Ph.D.degrees from Southeast University in 1987,1990,and 1993 respectively.He was invited as a post-doc research fellow in The University of Hong Kong from 1997 to 1998,and TCT fellow in Nanyang Technological University in 2006.He is currently a Professor at the National Mobile Communications Research Laboratory,Southeast University.His research interests include data transmission and secure communication technology
