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研究了IP over WDM网络的低碳路由问题,综合考虑业务持续时间和利用可再生能源和传统能源供能两个因素,基于分层图模型,提出一种带有业务持续时间感知的绿色路由(HTAGR)算法。HTAGR依据节点处太阳能供能情况以及节点和链路的能耗情况动态调整链路权值,并鼓励选择业务持续时间内需要额外消耗传统能源最少的路径建立连接。仿真结果表明,与传统节能路由算法相比,HTAGR有利于消耗更少的传统能源和使用更多的可再生能源,在保持较低阻塞率的同时,进一步降低了业务平均传统能耗和CO2排放量。
This paper studies the problem of low carbon routing in IP over WDM network. Considering the business duration and energy supply from renewable energy sources and traditional energy sources, a green routing based on hierarchical graph model is proposed HTAGR) algorithm. HTAGR dynamically adjusts the link weights according to the solar energy supply status at nodes and the energy consumption of nodes and links, and encourages the selection of additional paths consuming the least amount of traditional energy during the service duration to establish a connection. Simulation results show that compared with the traditional energy-efficient routing algorithm, HTAGR can help to consume less traditional energy and use more renewable energy, while reducing the blocking rate and further reducing the average traditional energy consumption and CO2 emissions the amount.