An Adaptive OFDM Modulation Method for Middle Voltage Power Line Communication

To improve the transmission reliability of the services in the power distribution and utility network (PDUN), this paper proposes an adaptive OFDM modulation method based on the services' priority for the middle voltage power line communication. Firstly, the Quality-of-Service (QoS) requirements of PDUN-related services are analyzed. Then, the proposed method is described including its basic idea and related implementation, which divides the PDUN-related services into the different QoS priority and selects the modulation methods adaptively for the more reliable transmission performance. Simulation experiments illustrate that the proposed method is effective and can guarantee a better transmission rate with a lower bit error rate.