A Semantic Model for Physical Layer Deception

TL;DR

A novel semantic model for PLD is established that derives the receiver's optimal decryption strategy, and consequently, the transmitter's optimal deception strategy from semantic distortion at varying levels of knowledge on the receiver's part regarding the key.

Abstract

Physical layer deception (PLD) is a novel security mechanism that combines physical layer security (PLS) with deception technologies to actively defend against eavesdroppers. In this paper, we establish a novel semantic model for PLD that evaluates its performance in terms of semantic distortion. By analyzing semantic distortion at varying levels of knowledge on the receiver's part regarding the key, we derive the receiver's optimal decryption strategy, and consequently, the transmitter's optimal deception strategy. The proposed semantic model provides a more generic understanding of the PLD approach independent from coding or multiplexing schemes, and allows for efficient real-time adaptation to fading channels.

Figures (6)

• Figure 1: System model for physical layer deception
• Figure 2: Dual-channel model of pld
• Figure 3: Model of the primary transport channel
• Figure 4: Model of the secondary transport channel
• Figure 5: The minimum semantic distortion and the strategy