Abstract: Semantic information has the characteristics of high abstraction, intelligence and simplicity. Semantic communication introduces a new semantic dimension and focuses on information content rather than coding symbols, which will greatly improve the efficiency of information transmission. With the deep integration of artificial intelligence and communication technology, semantic communication has been widely concerned by the academic and industrial circles, which will help solve the problems of super-large-scale connection and massive data transmission in intelligent machine communication, and play an important role in realizing efficient communication between machines. Based on information theory and guided by artificial intelligence, this paper summarizes the design method of end-to-end intelligent semantic communication system, presents the description and measurement of semantic information, investigates the encoding and decoding methods and analyses the evaluation indexes of semantic communication system.

Key words: Semantic information, Semantic communication, Intelligent communication, Intelligent Machine