基于缓存机制的能耗最小化电力线通信网络设计

Energy Consumption Minimized Power Line Communication Network Design Based on Caching Mechanism

针对智能电网系统中部署电力线通信(PLC)存在通信稳定性差、传输能耗高的问题,设计一种基于缓存机制的PLC网络。引入多输入多输出的PLC通信机制,使得多个网络接入节点可同时向一个用户发送数据,提高网络通信的稳定性。通过设计最优预编码算法解决回程链路上的数据重复传输问题,从而最小化用户从缓存节点和服务器下载文件的能耗。仿真结果表明,该PLC网络可有效提高通信可靠性,节约系统资源。

Aiming at the problem of poor communication stability and high transmission energy consumption in the deployment of Power Line Communication(PLC)in smart power grid systems,a PLC network based on caching mechanism is proposed.The Multiple Input Multiple Output(MIMO)PLC communication mechanism is introduced,so that multiple network access nodes can simultaneously send data to one user,thereby improving the stability of network communication.An optimal precoding algorithm is designed to solve the problem of repeated data transmission on the backhaul link,thereby minimizing the energy consumption of users downloading files from cache nodes and servers.Simulation results show that the PLC network can effectively improve communication reliability and save system resources.