Power-line Modem over the Low Voltage Grid Using Direct Sequence Spread Spectrum Techniques  

作　　者：A. Mahgoub H. Abdeel-Baky E. El-Badawy 

机构地区：[1]Computer Vision system Lab., Laval University, Quebec, QC G1V OA6, Canada [2]Department of Electrical Engineering, Faculty of Engineering, Alexandria University, Alexandria 21544, Egypt [3]Alexandria Higher Institute of Engineering ＆ Technology, Alexandria 21311, Egypt

出　　处：《Journal of Energy and Power Engineering》2011年第6期562-568,共7页能源与动力工程（美国大卫英文）

摘　　要：Power-line networks are designed to deliver electricity. They reach most of the domiciles and other buildings nowadays, so most of the people have access to it. On the other hand the backbone for the communications networks is not available in all countries especially the developing ones. A high cost and changing the design for the networks may be needed to construct this backbone. If data can be transmitted over the power-line networks, a recognized cost and time save can be achieved. In Egypt, the infrastructure is not always available for constructing a communications network backbone due to the already designed buildings before the need for these backbones. In this paper, we overcome this problem by designing a reliable Power-line Modem that operates safely on the low voltage grid. The modem is based on the Direct Sequence Spread Spectrum technique. It uses the mains zero crossing as an efficient way for the synchronization between the transmitter and the receiver. The Modem takes into account the problems of the Power-line including noise, attenuation and impedance dismatching.

关 键 词：Power-line modem DS/SS micro-controller （firmware） low voltage grid. 

分 类 号：TN915.05[电子电信—通信与信息系统] TN914.42[电子电信—信息与通信工程]