This includes error detection as well as correction.īasically, error detection coding corresponds to the analysis where the receiver gets to know that error exists in the received sequence but fails to get the erroneous bit. Thus, detection, as well as correction of errors at the receiver, is quite an important task and this can be achieved by introducing redundancies in the actual message bits.Įrror-correcting codes are used to deal with the introduction of errors while transmission. However, during transmission, a high possibility of introduction of errors within the message bits exists because of factors like noise or any other interference. We all are aware of the fact that message signal (in the form of bits) is transmitted from one end to the other via the proper channel in digital communication. The aim behind introducing it was to detect up to 2-bit errors at the same time and can correct a single bit error. In the year 1950, R W Hamming proposed an efficient array of algorithms as a technique for error correction, which was named hamming codes.
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