List of Contributions xiii -- Preface xvii -- 1 Intelligent Transceiver Design for Semantic Communication 1 Yiwen Wang, Yijie Mao, and Zhaohui Yang -- 1.1 Knowledge Base 1 -- 1.2 Source and Channel Coding 4 -- 1.3 Multiuser SC 7 -- 1.4 Transceiver Design for Single-Modal and Multimodal Data 13 -- 1.5 Challenges and Future Directions 16 -- 2 Joint Cell Association and Spectrum Allocation in Semantic Communication Networks 23 Le Xia, Yao Sun, and Muhammad Ali Imran -- 2.1 Introduction 23 -- 2.2 Semantic Communication Model 26 -- 2.3 Optimal CA and SA Solution in the PKM-Based SC-Net 32 -- 2.4 Optimal CA and SA Solution in the IKM-Based SC-Net 35 -- 2.5 Numerical Results and Discussions 38 -- 2.6 Conclusions 44 -- 3 An End-to-End Semantic Communication Framework for Image Transmission 47 Lei Feng, Yu Zhou, and Wenjing Li -- 3.1 Introduction 47 -- 3.2 The End-to-End Image Semantic Communication Framework Driven by Knowledge Graph 50 -- 3.3 Semantic Similarity Measurement 59 -- 3.4 Simulation 62 -- 3.5 Conclusion 63 -- 4 Robust Semantic Communications and Privacy Protection 67 Xuefei Zhang -- 4.1 Motivation and Introduction 67 -- 4.2 Robust Semantic Communication 68 -- 4.3 Knowledge Discrepancy-Oriented Privacy Protection for Semantic Communication 75 -- 4.4 Conclusion 84 -- 5 Interplay of Semantic Communication and Knowledge Learning 87 Fei Ni, Bingyan Wang, Rongpeng Li, Zhifeng Zhao, and Honggang Zhang -- 5.1 Introduction 87 -- 5.2 Basic Concepts and RelatedWorks 88 -- 5.3 A KG-enhanced SemCom System 91 -- 5.4 A KG Evolving-based SemCom System 99 -- 5.5 LLM-assisted Data Augmentation for the KG Evolving-Based SemCom System 104 -- 5.6 Conclusion 105 -- 6 VISTA: A Semantic Communication Approach for Video Transmission 109 Chengsi Liang, Xiangyi Deng, Yao Sun, Runze Cheng, Le Xia, Dusit Niyato, and Muhammad Ali Imran -- 6.1 Introduction 109 -- 6.2 Video Transmission Framework in VISTA 110 -- 6.3 SLG-Based Transceiver Design in VISTA 111 -- 6.4 Simulation Results and Discussions 116 -- 6.5 Conclusions 120 -- 7 Content-Aware Robust Semantic Transmission of Images over Wireless Channels with GANs 123 Xuyang Chen, Daquan Feng, Qi He, Yao Sun, and Xiang-Gen Xia -- 7.1 Introduction 123 -- 7.2 System Model 124 -- 7.3 System Architecture 127 -- 7.4 Experimental Results 127 -- 7.5 Conclusion 130 -- 8 Semantic Communication in the Metaverse 133 Yijing Lin, Zhipeng Gao, Hongyang Du, Jiacheng Wang, and Jiakang Zheng -- 8.1 Introduction 133 -- 8.2 RelatedWork 134 -- 8.3 Unified Framework for SemCom in the Metaverse 137 -- 8.4 Zero-Knowledge Proof-Based Semantic Verification 142 -- 8.5 Diffusion Model-Based Resource Allocation 147 -- 8.6 Simulation Results 152 -- 8.7 Future Directions 155 -- 8.8 Conclusion 157 -- 9 Large Language Model-Assisted Semantic Communication Systems 163 Shuaishuai Guo, Yanhu Wang, Biqian Feng, and Chenyuan Feng -- 9.1 Introduction 163 -- 9.2 SSSC Using Pretrained LLMs 165 -- 9.3 SIAC Using Pretrained LLMs 171 -- 9.4 Future Direction of Using LLMs: Semantic Correction 178 -- 9.5 Conclusion 180 -- 10 RIS-Enhanced Semantic Communication 183 Bohao Wang, Ruopeng Xu, Zhaohui Yang, and Chongwen Huang -- 10.1 RIS-Empowered Communications 183 -- 10.2 Beamforming Design for RISs Enhanced Semantic Communications 184 -- 10.3 Privacy Protection in RIS-Assisted Semantic Communication System 189 -- 10.4 AI for RIS-Assisted Semantic Communications 191 -- 10.5 Conclusion 195 -- Acronyms 195 -- References 196 -- Index 199.