Design of Novel Hamming Encoding and Decoding Circuits with Double Error Detection

Abstract

AbstractIn digital communication, transmitting data error-free is a major concern. The errors in data while transmitting results in wrong information at the receiving end. To protect the information in memories and register in digital circuits, error correction code plays an important role. Hamming code is one of such error-correcting codes used in digital transmission which can correct single-bit errors. Both even and odd parity checks can be used in the Hamming code. Here, even parity check method is used in implementing Hamming code encoding and decoding circuits. In Novel Hamming code, the parity bits are appended at the last to the data. Novel Hamming code requires less number of combinational gates than regular Hamming code. The pad-to-pad time delay is reduced in Novel Hamming encoding and decoding circuits as combinational gates are reduced while calculating parity bits. Here, both Hamming code and Novel Hamming code circuits are implemented in the Xilinx ISE Platform. A special redundant bit is used to spot the double-bit error.KeywordsNovelHammingDouble errorError detection