摘要
一个完整的电力线通信收发器是由物理层、介质访问控制层、逻辑链路层等构成。其中,介质访问控制层(MAC层)主要完成收发器间链路的建立和维护、确认帧的发送和接收、信道的接入控制等功能。这些功能的实现在收发器通信中起着重要作用。文章总结了目前国际上主要电力线通信标准MAC层的基本定义、作用机制、国内外研究动态及发展趋势。这些标准分别定义了不同电力线通信MAC层的技术规范。为了更加深入地了解电力线通信标准性能上的特点,文章对国际上主流标准的MAC层技术规范做出整体分析,并展望MAC层技术的未来研究方向。
A complete power line communication transceiver is composed of the physical layer, the medium access control layer （MAC layer） and the logical link layer. The MAC layer is mainly responsibility for establishing and maintaining links among transceivers, sending and receiving confirmation frames, and channel access control. The implemenation of the above functions plays an important role in the transceiver communication. This paper summarizes basic definitions, mechanisms, research and development trends of the MAC layer of current mainstream power line communication standards that define different technical specifications of the MAC layer. In order to deeply understand the performance characteristics of the power line communication standards, this paper analyzes the MAC layer specifications of international mainstream standards and looks ahead at the future R＆D direction of the MAC layer technology.
出处
《电力信息化》
2013年第3期7-12,共6页
Electric Power Information Technology
