3
Digital Transmission
Digital transmission consists of converting data into a waveform suitable for the path along which they are to be sent allied to the adherence to some protocol or data structure that allows the receiving device correctly to interpret the data.
In this chapter the fundamentals of digital transmission are introduced along with descriptions of the coding and error-correction techniques used in practical applications.
3.1 Introduction
The generic term for the path down which information is sent is the channel. In a transmission application, the channel may be a point-to-point cable, a network stage or a radio link.
In digital circuitry there is a great deal of noise immunity because the signal has only two states, which are ...
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