The subject of digital communications (DCOMM) involves the transmission of information in digital form from a source that generates the information to one or more destinations. Of particular importance in the analysis and design of communication systems are the characteristics of the physical channels though which the information is transmitted.
In DCOMM, the characteristics of a channel greatly affect the design of the basic building blocks of the communication system. As such, digital communications research strives to come to a understanding about all physical elements of a communication system and its functions.
Digital Communications makes use of functions and methods such as statistical channel modeling, modulation and demodulation techniques, optimal receiver design, performance analysis techniques, source coding, quantization, and fundamentals of information theory.