This book covers the foundations and system design of semantic wireless communications from a joint communication and computation perspective. It introduces semantic and task-oriented communication, semantic information metrics, and key modeling tools such as autoencoders, semantic entropy, knowledge graphs, and probability graphs. It then develops resource-allocation methods for semantic similarity maximization and equivalent-rate and energy optimization under practical wireless constraints.Later chapters connect these ideas to emerging 6G scenarios. This includes probabilistic semantic communication over space-air-ground integrated networks, federated learning for audio semantic communication, integrated sensing/computing/semantic communication for e-healthcare, semantic feature multiple access with generative AI, and security and privacy. This book is intended for researchers and graduate students, as well as engineers building wireless, edge-intelligence, and AI-native network systems. It combines mathematical models, optimization formulations, algorithm design, simulation studies, and open research directions.
How did people solve their disputes over debt, compensation, inheritance and other civil matters in early China? Did they go to court? How did the authorities view those problems? Using recently excavated early Chinese legal materials, Zhang Zhaoyang makes the compelling argument that civil law was not only developed, but also acquired a certain degree of sophistication during the Qin and Han dynasties. The state promulgated detailed regulations to deal with economic and personal relationships between individuals. The authorities formed an integral part of the formal justice system, and heard civil cases on a regular basis.