What are the various error detection schemes?
• The error detection codes send extra bits than the original data contained. This follows a “systematic” process. The transmitter sends a series of original data bits, followed by a series of fixed check bits that owe their origin to the original data only by a deterministic algorithm. This same algorithm is again used by the receiver who makes a comparative analysis of the received data bits and the received check bits. The error detection results when their values are found to be mismatched. There can also be “unsystematic” error detection process. In such codes, the transmitter sends only the data bits transformed as code bits. • In the Repetition schemes, the stream of data is broken down into blocks of bits that are sent in some previously determined number of times. During the repetition of these bits, similarity between the groups is observed. In case a certain mismatching is found in the series, it is pointed out as an error. However, this process has its own problems and cert
