Interference Assisted Secret Communication

Abstract

Wireless communication is susceptible to eavesdropping attacks because of its broadcast nature. This paper illustrates how interference can be used to counter eavesdropping and assist secrecy. In particular, a wire-tap channel with a helping interferer (WT-HI) is considered. Here, a transmitter sends a confidential message to its intended receiver in the presence of a passive eavesdropper and with the help of an independent interferer. The interferer, which does not know the confidential message, helps in ensuring the secrecy of the message by sending an independent signal. An achievable secrecy rate and several computable outer bounds on the secrecy capacity of the WT-HI are given for both discrete memoryless and Gaussian channels.

submitted to IEEE Transactions on Information Theory

References in corpus (3)

• Providing Secrecy With Structured Codes: Tools and Applications to Two-User Gaussian Channels
• Sum Capacity of the Gaussian Interference Channel in the Low Interference Regime
• Cognitive Interference Channels with Confidential Messages

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• The Secrecy Rate Region of the Broadcast Channel
• A Secure Communication Game with a Relay Helping the Eavesdropper
• Secure Degrees of Freedom of One-hop Wireless Networks with No Eavesdropper CSIT
• Secure Degrees of Freedom of Wireless X Networks Using Artificial Noise Alignment
• Joint Power Control in Wiretap Interference Channels
• Multiple-Access Relay Wiretap Channel
• Generalized Interference Alignment --- Part II: Application to Wireless Secrecy
• Secrecy Rate Region of the Broadcast Channel with an Eavesdropper
• Multi-Phase Smart Relaying and Cooperative Jamming in Secure Cognitive Radio Networks
• On the Application of Noisy Network Coding to the Relay-Eavesdropper Channel
• On the Capacity of the 2-User Interference Channel with Transmitter Cooperation and Secrecy Constraints
• A Broadcast Approach To Secret Key Generation Over Slow Fading Channels
• Air Dominance in Sensor Networks: Guarding Sensor Motes using Selective Interference
• On the Secrecy Capacity Region of the 2-user Z Interference Channel with Unidirectional Transmitter Cooperation
• Outer Bounds on the Secrecy Capacity Region of the 2-user Z Interference Channel With Unidirectional Transmitter Cooperation
• Finite State Markov Wiretap Channel with Delayed Feedback
• Relay Broadcast Channel with Confidential Messages
• Optimal Secure GDoF of Symmetric Gaussian Wiretap Channel with a Helper
• Spectrum Leasing via Cooperation for Enhanced Physical-Layer Secrecy
• Perfect Secrecy in Physical Layer Network Coding Systems from Structured Interference
• Dispensing with Noise Forward in the "Weak" Relay-Eavesdropper Channel
• Secrecy-Optimized Resource Allocation for Device-to-Device Communication Underlaying Heterogeneous Networks
• Physical Layer Security Jamming: Theoretical Limits and Practical Designs in Wireless Networks
• Simultaneous Wireless Information Power Transfer for MISO Secrecy Channel
• Control of Wireless Networks with Secrecy
• Jammer-Assisted Resource Allocation in Secure OFDMA With Untrusted Users