TY - GEN
T1 - Feedback capacity of Gaussian multiple-access wiretap channel with degraded message sets
AU - Dai, Bin
AU - Li, Chong
AU - Liang, Yingbin
AU - Ma, Zheng
AU - Shamai, Shlomo
N1 - Publisher Copyright: ©2021 IEEE
PY - 2021/4/11
Y1 - 2021/4/11
N2 - The Schalkwijk-Kailath (SK) feedback scheme is a capacity-achieving coding scheme for the point-to-point white Gaussian channel with feedback. Recently, it has been shown that the SK scheme, which is not designed with consideration of secrecy, already achieves perfect weak secrecy by itself, i.e., the secrecy capacity of the Gaussian wiretap channel with feedback equals the capacity of the same model without secrecy constraint. In this paper, we propose a capacity-achieving SK type feedback scheme for the two-user Gaussian multiple-access channel with degraded message sets (GMAC-DMS). Similarly to the inherent secrecy nature of the classical SK scheme, we show that the proposed scheme is also secure by itself, which indicates that the feedback secrecy capacity of the two-user Gaussian multiple-access wiretap channel with degraded message sets (GMAC-WT-DMS) equals the capacity of the same model without secrecy constraint.
AB - The Schalkwijk-Kailath (SK) feedback scheme is a capacity-achieving coding scheme for the point-to-point white Gaussian channel with feedback. Recently, it has been shown that the SK scheme, which is not designed with consideration of secrecy, already achieves perfect weak secrecy by itself, i.e., the secrecy capacity of the Gaussian wiretap channel with feedback equals the capacity of the same model without secrecy constraint. In this paper, we propose a capacity-achieving SK type feedback scheme for the two-user Gaussian multiple-access channel with degraded message sets (GMAC-DMS). Similarly to the inherent secrecy nature of the classical SK scheme, we show that the proposed scheme is also secure by itself, which indicates that the feedback secrecy capacity of the two-user Gaussian multiple-access wiretap channel with degraded message sets (GMAC-WT-DMS) equals the capacity of the same model without secrecy constraint.
KW - Feedback
KW - Gaussian multiple-access wiretap channel
KW - Secrecy capacity region
UR - http://www.scopus.com/inward/record.url?scp=85113315519&partnerID=8YFLogxK
U2 - 10.1109/ITW46852.2021.9457631
DO - 10.1109/ITW46852.2021.9457631
M3 - منشور من مؤتمر
T3 - 2020 IEEE Information Theory Workshop, ITW 2020
BT - 2020 IEEE Information Theory Workshop, ITW 2020
T2 - 2020 IEEE Information Theory Workshop, ITW 2020
Y2 - 11 April 2021 through 15 April 2021
ER -