南方电网技术2016，Vol.10Issue(5)：123-133,11.DOI:10.13648/j.cnki.issn1674-0629.2016.05.018
跨频带认知电力线载波通信：核心思想、关键技术与应用
Cross-Band Cognitive Power Line Communication:Core Concepts, Key Technologies and Applications
摘要
Abstract
In order to improve the reliability and the coverage of power line communication (PLC)and satisfy the communication de-mands of smart distribution grids,this paper proposes a novel cross-band cognitive PLC (CC-PLC)method,where the cross-band in-corporates low-frequency band,medium-frequency band and high-frequency band concurrently. The core concept is to enable PLC node to choose its working frequency and communication bandwidth within the cross-band frequencies according to its local channel conditions. By using this paradigm,the communication parameters of PLC can be adjusted on-line,and the disadvantages of traditional narrow-band and broadband PLC,where the working frequencies are preset and can not adapt to the specific and varying channel char-acteristics,can be well overcome. Moreover,this paper presents some promising key technologies,including channel sensing based on preamble sequence,on-line self-defined physical layer based on equivalent complex base-band (ECB),and self organized network based on multi-frequency flooding. All these solutions have remarkably improved the PLC’s frequency utilization efficiency and its net-work coverage. A CC-PLC system based on 150 kHz 12 MHz is independently developed for field test,which validates the superi-ority of CC-PLC and reveals its favorable practical prospect in the smart grid.关键词
智能电网/电力线载波通信/跨频带/信道认知/在线自定义/自组网Key words
smart grid/power line communication (PLC)/cross-band/channel sensing/on-line self-defined/self organized net-work分类
信息技术与安全科学引用本文复制引用
刘伟麟,李建岐,陆阳,安春燕,高鸿坚..跨频带认知电力线载波通信：核心思想、关键技术与应用[J].南方电网技术,2016,10(5):123-133,11.基金项目
国家电网公司科技项目（SGRIXTKJ［2015］660）。@@@@Supported by the Scientific Project of State Grid Cor-poration of China （SGRIXTKJ［2015］660）． （）
