Howtosignalprocessing
- What is channel encoding in digital communication?
- Why do we do channel encoding?
- Is encoding the same as modulation?
- What is channel encoding and decoding?
What is channel encoding in digital communication?
Channel coding is often used in digital communication systems to protect the digital information from noise and interference and reduce the number of bit errors. Channel coding is mostly accomplished by selectively introducing redundant bits into the transmitted information stream.
Why do we do channel encoding?
The primary purpose of channel coding is to protect the data from being corrupted in the transmission channel. Encoding takes place in the encoder, while the decoder (Fig. 8.2) performs the reverse operation. By coding, a stream of bits is transformed into a different stream of bits, which has some desired properties.
Is encoding the same as modulation?
What is the difference between Encoding and Modulation? Modulation is about changing a signal, whereas encoding is about representing a signal. Encoding is about converting digital or analog data to digital signal, whereas modulation is about converting digital or analog data to an analog signal.
What is channel encoding and decoding?
In computers, encoding is the process of putting a sequence of characters (letters, numbers, punctuation, and certain symbols) into a specialized format for efficient transmission or storage. Decoding is the opposite process -- the conversion of an encoded format back into the original sequence of characters.
