- See main article Error correction and detection.
In digital telecommunications, channel coding is a pre-transmission mapping applied to a digital signal or data file, usually designed to make error-correction (or at least error detection) possible.
Error correction is implemented by using more digits (bits in case of a binary channel) than the number strictly necessary for the samples, and having the receiver compute the most likely valid message that could have resulted in the received one.
Types of channel coding include:
- Parity checks
- Hamming code
- Reed-Muller code
- Reed-Solomon code
- Turbo coding
Read more about this topic: Node-to-node Data Transfer
Famous quotes containing the word channel:
“There may sometimes be ungenerous attempts to keep a young man down; and they will succeed too, if he allows his mind to be diverted from its true channel to brood over the attempted injury. Cast about, and see if this feeling has not injured every person you have ever known to fall into it.”
—Abraham Lincoln (1809–1865)