Rate-Distortion-Perception Theory for Semantic Communication ...

• Main Authors: Chai, Jingxuan, Xiao, Yong, Shi, Guangming, Saad, Walid
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: arXiv 2023
• Subjects: Information Theory cs.IT; Artificial Intelligence cs.AI; Networking and Internet Architecture cs.NI; FOS Computer and information sciences; Iceland
• Online Access: https://dx.doi.org/10.48550/arxiv.2312.05437; https://arxiv.org/abs/2312.05437

Semantic communication has attracted significant interest recently due to its capability to meet the fast growing demand on user-defined and human-oriented communication services such as holographic communications, eXtended reality (XR), and human-to-machine interactions. Unfortunately, recent study suggests that the traditional Shannon information theory, focusing mainly on delivering semantic-agnostic symbols, will not be sufficient to investigate the semantic-level perceptual quality of the recovered messages at the receiver. In this paper, we study the achievable data rate of semantic communication under the symbol distortion and semantic perception constraints. Motivated by the fact that the semantic information generally involves rich intrinsic knowledge that cannot always be directly observed by the encoder, we consider a semantic information source that can only be indirectly sensed by the encoder. Both encoder and decoder can access to various types of side information that may be closely related to ... : accepted at IEEE International Conference on Network Protocols (ICNP) Workshop, Reykjavik, Iceland, October 10-13, 2023 ...