Modulation is a signal-processing operation that is used to provide for the efficient transmission of digital information over the channel.
- In this chapter, we study another important signal-processing operation, namely, channel coding, which is used to provide for the reliable transmission of digital information over the channel.
- In particular, we present a survey of error-control coding techniques that rely on the systematic addition of redundant symbols to the transmitted information so as to facilitate two basic objectives at the receiver error detection and error correction.