130 citations · 416 across the 32 of their papers we have counts for
8 papers · 1 filter
Quickest Change Detection in Continuous-Time in Presence of a Covert Adversary
Amir Reza Ramtin, Philippe Nain, Don Towsley
We investigate the problem of covert quickest change detection in a continuous-time setting, where a Brownian motion experiences a drift change at an unknown time. Unlike classical…
LPD Communication: A Sequential Change-Point Detection Perspective
Ke-Wen Huang, Hui-Ming Wang, Don Towsley +1
In this paper, we establish a framework for low probability of detection (LPD) communication from a sequential change-point detection (SCPD) perspective, where a transmitter, Alice…
Covert Single-hop Communication in a Wireless Network with Distributed Artificial Noise Generation
Ramin Soltani, Boulat Bash, Dennis Goeckel +2
Covert communication, also known as low probability of detection (LPD) communication, prevents the adversary from knowing that a communication is taking place. Recent work has demo…
Covert Communications on Poisson Packet Channels
Ramin Soltani, Dennis Goeckel, Don Towsley +1
Consider a channel where authorized transmitter Jack sends packets to authorized receiver Steve according to a Poisson process with rate packets per second for a time period $T…
Covert Communications on Renewal Packet Channels
Ramin Soltani, Dennis Goeckel, Don Towsley +1
Security and privacy are major concerns in modern communication networks. In recent years, the information theory of covert communications, where the very presence of the communica…
Physical Layer Security in Heterogeneous Cellular Networks
Hui-Ming Wang, Tong-Xing Zheng, Jinhong Yuan +2
The heterogeneous cellular network (HCN) is a promising approach to the deployment of 5G cellular networks. This paper comprehensively studies physical layer security in a multi-ti…
Covert Optical Communication
Boulat A. Bash, Andrei H. Gheorghe, Monika Patel +4
Encryption prevents unauthorized decoding, but does not ensure stealth---a security demand that a mere presence of a message be undetectable. We characterize the ultimate limit of…
Covert Communication Gains from Adversary's Ignorance of Transmission Time
Boulat A. Bash, Dennis Goeckel, Don Towsley
The recent square root law (SRL) for covert communication demonstrates that Alice can reliably transmit bits to Bob in uses of an additive white Gaussia…