Covert Communication Over a Compound Discrete Memoryless Channel

被引：0

作者：

Ahmadipour, Mehrasa ^{[1
]}

Salehkalaibar, Sadaf ^{[1
]}

Yassaee, Mohammad Hossein ^{[2
]}

Tan, Vincent Y. F. ^{[3
]}

机构：

[1] Univ Tehran, Coll Engn, ECE Dept, Tehran, Iran

[2] Inst Res Fundamental Sci IPM, Tehran, Iran

[3] Natl Univ Singapore, Dept ECE, Singapore, Singapore

来源：

2019 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY (ISIT) | 2019年

关键词：

D O I：

10.1109/isit.2019.8849494

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, we study covert communication over a compound discrete memoryless channel (DMC). There are two channel states in which one of them is arbitrarily chosen and remains fixed during the transmission. The objective is to reliably send a message from the transmitter to the receiver. An adversary who is observing the channel output should not be able to infer the channel state. Two covertness metrics are considered. In the first metric, covertness is measured using the KL-divergence of the channel output marginal of each state with a fixed distribution. Different cases where such a distribution can be specified, are studied. The optimal transmission rate of each case is established. In the second metric, the covertness is measured by using the total variation distance of the channel output marginals of the two states. Upper and lower bounds on the optimal transmission covert rate are derived. The bounds match for a special case and characterize the optimal throughput.

引用

页码：982 / 986

页数：5

共 11 条

[1]

Ahmadipour M., Covert communication over a compound discrete memoryless channel

[2]

Arumugam KSK, 2016, IEEE INT SYMP INFO, P2229, DOI 10.1109/ISIT.2016.7541695

[3]

Bash B. A., 2013, IEEE J SELECT AREAS, V31

[4] Covert Communication Over Noisy Channels: A Resolvability Perspective [J].