Abstract
Power line communication (PLC) is applied in various areas, such as Internet access, smart home, automatic meter reading system, security monitoring system, etc. The introduction of Orthogonal Frequency Division Multiplexing (OFDM) improves the reliability and efficiency of PLC substantially, and the standards of wide-band PLC and narrow-band PLC are becoming more complete. This paper is based on the receiver designing work according to the transmitter flow described in ITU-T G.9955. Regarding to the up-shift part of transmitter, two different methods to recover the useful information are provided including Hilbert transform and sub-carrier calculation. Both the theoretic analysis and simulation result shows that the two methods can recover the transmitted data exactly, while the second method can decrease the complexity of receiver and improve the efficiency of PLC system greatly.
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