Performance analysis of PRIME Technology based on QPSK and 16/64-QAM of power line communication

Data transmission over power lines as a medium for information transmission over a traditional grid system is a relatively new area of telecommunication. This study investigates one of the power line communications (PLC)technologies categorized within a physical layer PRIME (Power line Intelligent Metering Evolution) tested in MATLAB. The performance of PRIME data is modulated using QPSK (Quadratic Phase Shift Keying), and 16/64 QAM (Quadratic Amplitude Modulation) with additive white gaussian noise (AWGN)based on which of these modulations is the best performance system based on the bit error rate (BER)and signal to noise ratio Eb/N0 (dB). The results reveal that the performance of the proposed approach generated a superior signal quality model when using 64-QAM compared with that of 16-QAM and QPSK, where the BER is 0.0198, the Eb/N0 is 0 dB in QPSK modulation, whereas it is 2.4 dB when using 16-QAM modulation, and 6.1 dB when using 64-QAM modulation. Then tested many cases for comparison of the BER is 0.01 and Eb/N0 when using just QPSK modulation is 4.2 dB without any channel coder, using QPSK modulation with a convolutional encoder is 4.93 dB, and using QPSK modulation with Reed-Solomon coding (RS coding) is 5.3 dB. It was proved that the tested case of QPSK with RS coding has the best signal quality compared to other cases.