3 papers
cs.IT2025
On PIR and SPIR Over Gaussian MAC
Or Elimelech, Asaf Cohen
This paper revisits the problems of Private Information Retrieval (PIR) and Symmetric PIR (SPIR). In PIR, a user retrieves a desired message from replicated, non-communicating…
cs.IT2025
Covert Adversarial Actuators in Finite MDPs
Edoardo David Santi, Gongpu Chen, Deniz Gündüz +1
We consider a Markov decision process (MDP) in which actions prescribed by the controller are executed by a separate actuator, which may behave adversarially. At each time step, th…
cs.IT2025
PIR Over Wireless Channels: Achieving Privacy With Public Responses
Or Elimelech, Asaf Cohen
In this paper, we address the problem of Private Information Retrieval (PIR) over a public Additive White Gaussian Noise (AWGN) channel. In such a setup, the server's responses are…