A Semantic Model for Physical Layer Deception

TL;DR

This paper introduces a semantic model for physical layer deception (PLD) that assesses its effectiveness through semantic distortion, enabling optimized deception strategies and real-time adaptation in secure communications.

Contribution

It presents a novel semantic framework for PLD that is independent of coding schemes and supports real-time adaptation to fading channels.

Findings

Derived the receiver's optimal decryption strategy.

Established the transmitter's optimal deception strategy.

Provided a generic understanding of PLD performance.

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.