潘雨晴,冯隆基,金萍.窄带OFDM低压电力线载波技术及标准化发展趋势分析[J].电测与仪表,2015,52(13):. panyuqing,fenglongji,jinping.Development and Standardization of Narrowband OFDMPower Line Communications[J].Electrical Measurement & Instrumentation,2015,52(13):.
窄带OFDM低压电力线载波技术及标准化发展趋势分析
Development and Standardization of Narrowband OFDMPower Line Communications
This paper analyzes the recent development and standardization of narrow-band OFDM technology for low-voltage power line communications(PLC) targeting automatic meter reading and management (AMR/AMM) applications. The pager first introduces the characteristics of low-voltage power distribution lines when used as communication channel, and reveals the reason way OFDM(Orthogonal Frequency Division Multiplexing) has been widely adopted for the new generation of PLC. The paper then proposes a protocol stack model for the local PLC in AMR/AMM system to establish a layered framework for standard development to realize interoperability. Based on this model, the paper finally focuses on the PLC physical layer, analyzes the necessity of zero-crossing transmission, and performs a comparison of the main narrow-band OFDM PLC standards.