CSA-SHE: Channel and Spatial Attention With Selective Homomorphic Encryption for Privacy-Preserving Semantic Communication in Space–Air–Ground Integrated Networks
Space-Air-Ground Integrated Networks (SAGINs) represent a revolutionary paradigm to attain seamless and ubiquitous connectivity by incorporating space-based, aerial, and ground communication systems. Semantic communication in SAGINs is a promise to improve transmission efficiency by conveying only the meaning of data r...