DCS (Digital Communication System)?

A digital communication system comprises six fundamental blocks. The functional blocks at the transmitter are liable for processing the input message, encoding, and sending over the communication channel. The functional blocks at the receiver execute the reverse process to retrieve the original message. The main goal of a digital communication system is to send the message proficiently over the communication channel by joining different information compressions, encoding and modulation techniques, in order to reproduce the message in the receiver with the least errors.