Blockchain-aided Secure Semantic Communication for AI-Generated Content in Metaverse

by   Yijing Lin, et al.

The construction of virtual transportation networks requires massive data to be transmitted from edge devices to Virtual Service Providers (VSP) to facilitate circulations between the physical and virtual domains in Metaverse. Leveraging semantic communication for reducing information redundancy, VSPs can receive semantic data from edge devices to provide varied services through advanced techniques, e.g., AI-Generated Content (AIGC), for users to explore digital worlds. But the use of semantic communication raises a security issue because attackers could send malicious semantic data with similar semantic information but different desired content to break Metaverse services and cause wrong output of AIGC. Therefore, in this paper, we first propose a blockchain-aided semantic communication framework for AIGC services in virtual transportation networks to facilitate interactions of the physical and virtual domains among VSPs and edge devices. We illustrate a training-based targeted semantic attack scheme to generate adversarial semantic data by various loss functions. We also design a semantic defense scheme that uses the blockchain and zero-knowledge proofs to tell the difference between the semantic similarities of adversarial and authentic semantic data and to check the authenticity of semantic data transformations. Simulation results show that the proposed defense method can reduce the semantic similarity of the adversarial semantic data and the authentic ones by up to 30 scheme.


page 1

page 4

page 5

page 9


Stochastic Resource Allocation for Semantic Communication-aided Virtual Transportation Networks in the Metaverse

The physical-virtual world synchronization to develop the Metaverse will...

YOLO-based Semantic Communication with Generative AI-aided Resource Allocation for Digital Twins Construction

Digital Twins play a crucial role in bridging the physical and virtual w...

Blockchain-Empowered Lifecycle Management for AI-Generated Content (AIGC) Products in Edge Networks

The rapid development of Artificial IntelligenceGenerated Content (AIGC)...

Cooperative Resource Management in Quantum Key Distribution (QKD) Networks for Semantic Communication

Increasing privacy and security concerns in intelligence-native 6G netwo...

A Unified Blockchain-Semantic Framework for Wireless Edge Intelligence Enabled Web 3.0

Web 3.0 enables user-generated contents and user-selected authorities. W...

Adaptive Bitrate Video Semantic Communication over Wireless Networks

This paper investigates the adaptive bitrate (ABR) video semantic commun...

Blockchain based AI-enabled Industry 4.0 CPS Protection against Advanced Persistent Threat

Industry 4.0 is all about doing things in a concurrent, secure, and fine...

Please sign up or login with your details

Forgot password? Click here to reset