Symbol

Symbol mapping in digital communication

Symbol mapping in digital communication
  1. What is symbols in digital communication?
  2. What is a symbol in digital modulation?

What is symbols in digital communication?

Symbols. A symbol may be described as either a pulse in digital baseband transmission or a tone in passband transmission using modems. A symbol is a waveform, a state or a significant condition of the communication channel that persists, for a fixed period of time.

What is a symbol in digital modulation?

In digital modulation, the Symbol Rate determines the rate (frequency) at which symbols occur. A symbol may consist of one or more bits as determined by the modulation format. For example, in a BPSK. system, each symbol represents 1 bit; in a QPSKQuadrature phase shift keying system, each symbol represents 2 bits.

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