In this paper, we calculated the immunity characteristics of PLC system to the conducted interference wave, from the aspect of PHY rate (physical layer data rate) by using MATLAB/Simulink, and compared with measurement results. As the results, it is revealed that the PHY rate of PLC modem can be calculated by using MATLAB/Simulink as well as the measurement one even when the narrowband interference signal is impressed through the power line. In addition, we can confirm by using MATLAB/Simulink that the PHY rate normalized by the maximum value increases by about 20% by inserting the notch when impressing the interference signal in the notch band and C/I is improved by 10~15dB by inserting the notch.
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