International Journal of Computer Science Issues

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When the information is transmitted through wireless or through wired channel, error may occur in data. In some techniques error may be only detected while there are such techniques which can detect as well as correct that error in the data. Hamming code is such a code which can detect a single bit error position and also correct that, this coding scheme is used now days in Wireless communication, in deep space communication etc, e.g. Fixed wireless broadband with high error rate where there is need of correction not only detection. In this coding scheme the detection of data depend on the check/Parity bits, these bits play a vital role in hamming code because they locate the position where the error has been occurred. These check bits are inserted into the data at specified position at transmitter and also at receiver side to sort out error. And to find these bits we need to design a matrix and by putting bits information and than the value of parity bit can be determine. Normally these bits can be found by using Ex-OR logic as well as using another-logic that is AND-OR logic. In this Paper I have sketched a general Idea about these two logics that which logics performance is good and efficient. In future I will prove that by performing simulations through PSpice and will find the delays of these mentioned logics.