Impact of Action-Dependent State and Channel Feedback on Gaussian Wiretap Channels

被引：16

作者：

Dai, Bin ^{[1
]}

Li, Chong ^{[2
]}

Liang, Yingbin ^{[3
]}

Ma, Zheng ^{[1
]}

Shamai , Shlomo ^{[4
]}

机构：

[1] Southwest Jiaotong Univ, Sch Informat Sci & Technol, Chengdu 610031, Peoples R China

[2] Nakamoto & Turing Labs, New York, NY 10018 USA

[3] Ohio State Univ, Dept Elect & Comp Engn, Columbus, OH 43220 USA

[4] Technion Israel Inst Technol, Dept Elect Engn, Technion, IL-32000 Haifa, Israel

来源：

IEEE TRANSACTIONS ON INFORMATION THEORY | 2020年 / 66卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Transmitters; Channel models; Upper bound; Channel capacity; Receivers; Channel state information; Interference; Action-dependent channel; dirty paper channel; feedback; secrecy capacity; wiretap channel; BROADCAST CHANNELS; NOISE CHANNELS; CODING SCHEME; DIRTY PAPER; INFORMATION; CAPACITY; TAPE;

D O I：

10.1109/TIT.2020.2967757

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

We investigate the state-dependent Gaussian wiretap channel with noncausal channel state information at the transmitter (GWTC-N-CSIT), and explore whether three strategies (i.e., taking action on the state, legitimate receiver's channel output feedback, and combining the former two strategies together) help to enhance the secrecy capacity of the GWTC-N-CSIT. To be specific, we first determine the secrecy capacity of the GWTC-N-CSIT with noiseless feedback. Next, we derive lower and upper bounds on the secrecy capacity of the GWTC-N-CSIT with action-dependent state. Finally, we derive lower and upper bounds on the secrecy capacity of the GWTC-N-CSIT with both action-dependent state and noiseless feedback, and show that these bounds meet for a special case. Numerical results of this paper indicate that all three strategies enhance the secrecy capacity of the GWTC-N-CSIT. The study of this paper offers new options for enhancing the secrecy rates of the state-dependent wiretap channel models.

引用

页码：3435 / 3455

页数：21

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