TY - JOUR
T1 - Enhancing physical layer security via channel feedback
T2 - a survey
AU - Dai, Bin
AU - Li, Chong
AU - Liang, Yingbin
AU - Poor, H. Vincent
AU - (Shitz), Shlomo Shamai
N1 - Funding Information:
The work of Bin Dai was supported by the National Natural Science Foundation of China under Grants 61671391, U1734209 and U1709219, Key Project of Sichuan Province (No. 2017SZYZF0002), the China Scholarship Council (file No. 201807005013), and the 111 Project No.111-2-14. The work of Yingbin Liang was supported by the U.S. National Science Foundation under Grant CCF-1801846. The work of H. Vincent Poor was supported by the U.S. National Science Foundation under grants CCF-0939370 and CCF-1513915. The work of Shlomo Shamai was supported by the European Union’s Horizon 2020 Research And Innovation Programme under grant 694630.
Publisher Copyright:
© 2020, The Author(s).
PY - 2020/12/1
Y1 - 2020/12/1
N2 - Physical layer security (PLS), which is based on information-theoretic principles of message confidentiality, has attracted considerable attention in recent years. This paper provides a comprehensive survey of using channel feedback (CF) to enhance the quality of PLS of various communication models. To be specific, the survey starts from the secret key-based CF scheme and its variations for the wiretap channel (WTC) and other communication models. Then, for the WTC and its generalized models, an improved feedback scheme and its variations are respectively introduced, where the improved scheme combines the secret key-based CF scheme with the Wyner-Ziv scheme for source coding with side information. It has been shown that these improved schemes perform better than the original secret key-based schemes for several cases. Next, the Schalkwijk-Kailath (SK) feedback scheme and its variations are introduced, which are optimal for the Gaussian WTC and its variations. Finally, the already existing CF schemes are summarized and the future challenges of using CF to enhance PLS are discussed.
AB - Physical layer security (PLS), which is based on information-theoretic principles of message confidentiality, has attracted considerable attention in recent years. This paper provides a comprehensive survey of using channel feedback (CF) to enhance the quality of PLS of various communication models. To be specific, the survey starts from the secret key-based CF scheme and its variations for the wiretap channel (WTC) and other communication models. Then, for the WTC and its generalized models, an improved feedback scheme and its variations are respectively introduced, where the improved scheme combines the secret key-based CF scheme with the Wyner-Ziv scheme for source coding with side information. It has been shown that these improved schemes perform better than the original secret key-based schemes for several cases. Next, the Schalkwijk-Kailath (SK) feedback scheme and its variations are introduced, which are optimal for the Gaussian WTC and its variations. Finally, the already existing CF schemes are summarized and the future challenges of using CF to enhance PLS are discussed.
KW - Channel feedback
KW - Physical layer security
KW - Wiretap channel
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U2 - 10.1186/s13638-020-01673-w
DO - 10.1186/s13638-020-01673-w
M3 - Review article
AN - SCOPUS:85081173088
SN - 1687-1472
VL - 2020
JO - Eurasip Journal on Wireless Communications and Networking
JF - Eurasip Journal on Wireless Communications and Networking
IS - 1
M1 - 58
ER -