Analysis of Corona Noise in High Voltage Power Line Communication(PLC) under QPSK Modulation in OFDM
نویسنده
چکیده
PLC is a popular communication channel for broadband access, multimedia sharing and as a smart grid. However, there are many disadvantages in PLC and causes deterioration of signal quality, bit error and electromagnetic interferences. High voltage (HV) PLC has been designed ,analyzed and implemented in various modulation protocols such as 4D-TCM,OFDM etc., however study has not been made to investigate its performance in OFDM in QPSK under HV corona noise effects. Corona noise is one of the most influencing noise in high voltage PLC. In HV PLC, corona noise in various weather conditions becomes more dominant and it results a considerable amount of bit error. In this paper , in addition to Additive White Gaussian Noise(AWGN) the effect of corona noise in BER had been investigated. We have used the most popular model of PLC channelthe Zimmermann and Dostert model. The multipath HV lines of 400KV and 220KV installed by Power Grid Corporation of India in the state of Assam has been used for simulation and analysis. Simulation of OFDM with QPSK and the resulting BER under corona noise has been determined.
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تاریخ انتشار 2013