9 papers
Fundamental Limits of Quantized MIMO ISAC under Gaussian Signaling
Hossein Atrsaei, Mireille Sarkiss, Michèle Wigger
We study a quantized multiple-input multiple-output (MIMO) integrated sensing and communication (ISAC) system in which the communication and sensing receivers each apply analog spa…
Channel Capacity under the Subtractive Dithered Quantization Model
Hossein Atrsaei, Mireille Sarkiss, Michèle Wigger
We study the capacity of an additive white Gaussian noise (AWGN) channel followed by a subtractive dithered uniform quantizer. Under the Schuchman conditions and with negligible ov…
Distributed Detection under Stringent Resource Constraints
Abdelaziz Bounhar, Mireille Sarkiss, Michèle Wigger
This paper identifies the Stein-exponent of distributed detection when the sensor communicates to the decision center over a discrete memoryless channel (DMC) subject to one of thr…
Distributed Hypothesis Testing Under A Covertness Constraint
Ismaila Salihou Adamou, Michèle Wigger
We study distributed hypothesis testing under a covertness constraint in the non-alert situation, which requires that under the null-hypothesis an external warden be unable to dete…
Multi-Sensor Distributed Hypothesis Testing in the Low-Power Regime
Cécile Bouette, Michèle Wigger
We characterize the Stein-exponent of a distributed hypothesis testing scenario where two sensors transmit information through a memoryless multiple access channel (MAC) subject to…
Typicality with Feedback
Thomas Sturma, Michèle Wigger
The main objective of this paper is to analyze a closed-loop feedback system where a transmitter probes a discrete memoryless channel (DMC) and can adapt its inputs based on the pr…
Whispering Secrets in a Crowd: Leveraging Non-Covert Users for Covert Communications
Abdelaziz Bounhar, Mireille Sarkiss, Michèle Wigger
This paper establishes the fundamental limits of a multi-access system where multiple users communicate to a legitimate receiver in presence of an external warden. Only a specific…
Unveiling Covert Semantics: Joint Source-Channel Coding Under a Covertness Constraint
Abdelaziz Bounhar, Mireille Sarkiss, Michèle Wigger
The fundamental limit of Semantic Communications (joint source-channel coding) is established when the transmission needs to be kept covert from an external warden. We derive infor…
Covert Multi-Access Communication with a Non-Covert User
Abdelaziz Bounhar, Mireille Sarkiss, Michèle Wigger
In this paper, we characterize the fundamental limits of a communication system with three users (i.e., three transmitters) and a single receiver where communication from two cover…