电力线通信自适应中继路由算法

An adaptive routing algorithm for power line communication

电力线通信为配电自动化业务的开展提供了廉价的数据通信平台,但由于配电网具有网络拓扑未知和信道时变的特点,会导致可靠性降低和通信距离存在不足,这些问题很难在物理层进行解决,需要通过上层的通信协议来解决。为此提出一种自适应的路由算法,通过此算法可以形成节点之间的正常路由功能和链路修复功能,以增大电力线载波通信的通信距离,并提高其可靠性。仿真结果表明,该算法能够快速有效地找到网络协调节点到目的节点的路由。

Power Line Communication（PLC） provides a low-cost data communication platform for automation system of electric distribution network.However,in PLC network,the characteristics of time-varying,high attenuation and high noise of the channel,have caused some problems like short distance of communication and poor reliability.It is quite difficult to resolve these problems at the physical layer,whereas they can be solved through the upper communication protocol.This paper proposes an adaptive routing algorithm,through which the routing among the nodes can be obtained,and the broken links can be repaired.The simulation results indicate that the algorithm is a simple and effective method of extending the communication distance and improving the reliability of PLC.