Different communication technologies are used for the transmission of information such as wireless communication, satellite communication etc. Power Line Communication (PLC) is one of the technologies using existing power cables for the transmission of information. Power cables are not designed for data transmission. So the PLC environment contains different types of noise. This paper presents a novel approach for removing periodic impulsive noise from OFDM based power line communication system. The noise is detected using periodic impulsive noise detection algorithm and the noise is filtered by using adaptive notch filter. An adaptive filter using LMS algorithm is also designed to suppress periodic impulsive noise. Then compare the Bit Error Rate (BER) of PLC system without noise filtering, with noise filtering using notch filter and with noise filtering using adaptive filtering based on LMS algorithm. Results show that the received data is same as that of input data which is transmitted. Simulation results shows that PLC system after noise filtering gives better results than PLC system without noise filtering.
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