The transmission of discrete information

The term 'discrete information' is meant to imply that a finite number of items of information is provided by an information source during a given time interval. The fundamental concepts and principles of a transmission of discrete information are examined, taking into account definitions of basic terms, the conversion of information into signals, the entropy of the information source, noise in communication channels, the classification of communication channels, and networks for the transmission of discrete information. Signals in discrete information systems and communication channels are considered along with the principles of channel construction, problems of synchronization, transmitting and receiving terminal installations, methods for enhancing the accuracy of the transmission of information, principles of network construction for information transmission, the construction of telegraph communication networks, methods for raising system and network reliability, and the fundamentals of facsimile transmission techniques.