Covert Communication Over a Quantum MAC with a Helper

2025/04/26 by Hassan ZivariFard, Rémi A. Chou, ZivariFard, Hassan +3
Computer Science · Engineering · #Quantum Information and Cryptography #Wireless Communication Security Techniques #Cryptography and Data Security

paper · pdf · doi:10.48550/arxiv.2504.18747

Abstract

We study covert classical communication over a quantum multiple-access channel (MAC) with a helper. Specifically, we consider three transmitters, where one transmitter helps the other two transmitters communicate covertly with a receiver. We demonstrate the feasibility of achieving a positive covert rate over this channel and establish an achievable rate region. Our result recovers as a special case known results for classical communication over classical MACs with a degraded message set, classical communication over quantum MACs, and classical communication over MACs with a helper. To the best of our knowledge, our result is the first to achieve covert communication with positive rates over both classical and quantum MACs.

Citations

• Covert Communication via Action-Dependent States
• Three-Receiver Quantum Broadcast Channels: Classical Communication with Quantum Non-unique Decoding
• The Quantum Multiple-Access Channel with Cribbing Encoders
• Private Classical Communication over Quantum Multiple-Access Channels
• Keyless Covert Communication via Channel State Information
• Fundamental limits of quantum-secure covert communication over bosonic channels
• Cooperative Resolvability and Secrecy in the Cribbing Multiple-Access Channel
• Covert Communication over a K-User Multiple Access Channel
• Covert Communication with Channel-State Information at the Transmitter
• Covert Communication in the Presence of an Uninformed Jammer
• Optimal Throughput for Covert Communication Over a Classical-Quantum Channel
• Fundamental Limits of Covert Communication over Classical-Quantum Channels
• Reliable Deniable Communication: Hiding Messages in Noise
• Limits of Reliable Communication with Low Probability of Detection on AWGN Channels
• Security of Quantum Key Distribution
• Entanglement-Assisted Capacity of Quantum Multiple-Access Channels
• Optimal sequence of quantum measurements in the sense of Stein's lemma in quantum hypothesis testing
• Noncommuting Mixed States Cannot Be Broadcast
• Fidelity for Mixed Quantum States
• The “transition probability” in the state space of a ∗-algebra

Related

• Achievability of Covert Quantum Communication
• Private Classical Communication over Quantum Multiple-Access Channels
• The Classical-Quantum Multiple Access Channel with Conferencing Encoders and with Common Messages
• One-shot inner bounds for sending private classical information over a quantum MAC
• Optimal Throughput for Covert Communication Over a Classical-Quantum Channel