| 引用本文: | 戚佳金,刘晓胜,李贵娇,徐殿国.低压窄带电力线通信信道编码方法[J].电力自动化设备,2008,(3):78-81 |
| .Channel coding methods of narrow-band LV power Hne communication[J].Electric Power Automation Equipment,2008,(3):78-81 |
|
|
| 摘要: |
| 信道编码是提高低压配电网窄带电力线通信可靠性的有效方法之一。在分析研究信道模型基础上,提出了中低速、低成本、适合工程用的电力线通信信道编码设计原则,阐述了简单重复码编码方法和大数判决解码方法。设计由原码、8位编码、16位编码和不同前导符组合而成的4种信道编码方法,给出该4种信道编码方法在实验室220V电网环境下的详细测试数据。在折衷考虑编码效率和可靠性前提下,认为使用8位编码(0X80和0XFE)和使用0XCCC0作为前导符的编码组合方式适合于实际工程应用,较其他3种编码方法误码率至少降低30%。 |
| 关键词: 电力线通信,信道编码,大数判决,误码率,编码效率 |
| DOI： |
| 分类号:TN913.6 |
| 基金项目:黑龙江省自然科学基金项目资助(F200508)，黑龙江省科技攻关项目资助(GC06A130)~~ |
|
| Channel coding methods of narrow-band LV power Hne communication |
|
QI Jiajin LIU Xiaosheng LI Guijiao XU Dianguo
|
| Abstract: |
| Channel coding is an effective way to enhance the reliability of PLC(Power Line Commu-nication) in low-voltage distribution network. Based on current studies and channel model,the design rule of PLC channel coding is provided for the low speed and low cost applications in engineering project. Simple channel coding method and majority decision decoding rule are discussed. Four channel coding methods(combinations of original codes,8-bit coding,16 - bit coding and different leading codes) are designed and their test datum in lab 220 V distribution network environment are provided. With the consideration of both coding efficiency and reliability,the combination of 8-bit coding(0x80 and 0xFE) and leading code(0xCCC0) is suggested for engineering applications,which has lower error code ratio for 30 % at least than the other three methods. |
| Key words: power line communication,channel coding,majority decision rule,error code ratio,coding efficiency |
