Implementation study of a narrowband PLC system based on adaptive OFDM

摘要

PLC (Power Line Communication) is a method of data transmission using the power line as the communication media. This paper builds a PLC system taking advantage of the adaptive OFDM modulation algorithm and subcarrier allocation algorithm. Simulation results demonstrate that the adaptive OFDM technique can improve the transmission rate of the entire system when meeting the requirements of a certain bit error rate and guarantee the communication stability of the low-voltage power line communication system. The adaptive OFDM technique is better used where channels are not smooth.