Multiple Access Channels with Generalized Feedback and Confidential Messages

Abstract

This paper considers the problem of secret communication over a multiple access channel with generalized feedback. Two trusted users send independent confidential messages to an intended receiver, in the presence of a passive eavesdropper. In this setting, an active cooperation between two trusted users is enabled through using channel feedback in order to improve the communication efficiency. Based on rate-splitting and decode-and-forward strategies, achievable secrecy rate regions are derived for both discrete memoryless and Gaussian channels. Results show that channel feedback improves the achievable secrecy rates.

To appear in the Proceedings of the 2007 IEEE Information Theory Workshop on Frontiers in Coding Theory, Lake Tahoe, CA, September 2-6, 2007

References in corpus (2)

• The Relay-Eavesdropper Channel: Cooperation for Secrecy
• The Gaussian Multiple Access Wire-Tap Channel

Cited by in corpus (8)

• Towards the Secrecy Capacity of the Gaussian MIMO Wire-tap Channel: The 2-2-1 Channel
• Interference Assisted Secret Communication
• Interference-Assisted Secret Communication
• On the Throughput of Secure Hybrid-ARQ Protocols for Gaussian Block-Fading Channels
• The Wiretap Channel with Generalized Feedback: Secure Communication and Key Generation
• Strong Secrecy for Multiple Access Channels
• Compound Multiple Access Channel with Confidential Messages
• Information-Theoretic Security in Wireless Networks