AN-VE: AN IMPROVED HAMMING CODING TECHNIQUE Page No: 2639-2647

Egwali Annie O and Akwukwuma V V N

Keywords: Error, code, parity, hamming, parity.

Abstract: Many communication channels are subject to noise, and thus errors may be introduced during transmission. Error codes can be units of deliberate error injection or faults, which alters and cause hazards during communication, this makes error detection and correction important in the computing environment. Coding techniques restricted to detecting errors only are either limited to analyzing only the length of the encoded message bits or repeats every transmitted stream of bit(s) several times in order to check for correctness, which is not effective if similar error occurs within the same position on all clusters of bits in the encoded message. Error detecting and correcting techniques are more thorough by introducing extra redundant codes to detect the actual position of errors and correcting them, however if more than one error occurs, it becomes difficult to detect all errors and decode correctly. We therefore propose a hybrid error detecting and correcting technique, AN-VE, that simultaneously detect the existence of faulted codes right from the transmitter domain, analyzes all error positions in the encoded message via the use of extra parity bits, decode all errors correctly and verify error messages with the original message. We evaluate our approach using simulated and real data.



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