Mutual Information Games in Multi-user Channels with Correlated Jamming
Shabnam Shafiee, Sennur Ulukus

TL;DR
This paper analyzes a non-cooperative game involving two users and a jammer in AWGN channels, exploring optimal strategies and the impact of channel fading and correlation on solution existence.
Contribution
It introduces a game-theoretic framework for mutual information maximization in multi-user channels with correlated jamming, including solutions for non-fading and fading scenarios.
Findings
Optimal strategies are Gaussian signaling and linear jamming in non-fading channels.
Solutions exist when the jammer is uncorrelated in fading channels.
When the jammer is correlated, optimal strategies may not exist, but max-min strategies are characterized.
Abstract
We investigate the behavior of two users and one jammer in an AWGN channel with and without fading when they participate in a non-cooperative zero-sum game, with the channel's input/output mutual information as the objective function. We assume that the jammer can eavesdrop the channel and can use the information obtained to perform correlated jamming. Under various assumptions on the channel characteristics, and the extent of information available at the users and the jammer, we show the existence, or otherwise non-existence of a simultaneously optimal set of strategies for the users and the jammer. In all the cases where the channel is non-fading, we show that the game has a solution, and the optimal strategies are Gaussian signalling for the users and linear jamming for the jammer. In fading channels, we envision each player's strategy as a power allocation function over the channel…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsWireless Communication Security Techniques · Advanced Wireless Network Optimization · Cooperative Communication and Network Coding
