摘要
针对生存性波分复用网络中的能耗最小化和低阻塞率之间的矛盾,提出了一种基于成本因子的能耗自感知专有保护算法。首先,建立整数线性规划模型进行最优化设计;其次,通过实时感知链路的负载及能耗状态定义链路代价成本因子,使网络中工作路径和保护路径尽可能地分别汇聚在不同光纤上,同时设置空闲或保护资源为睡眠模式,从而实现网络的节能和业务的保护。仿真表明,与传统算法相比,所提算法在保持低业务阻塞率情况下,能较好地降低网络能耗。
In order to overcome the contradiction between power consmnption minimization and low blocking probability in survivable wavelength division multiplexing(WDM) networks,this paper proposed a novel heuristic algorithm of factor based cost of energy-aware with dedicated path protection(FBC-EA-DPP).Firstly,it proposed an integer linear programming(ILP) formulation based on optimal design.Secondly,it defined the cost factor by jointly perceived the real-time load and energy consumption of links in the network.The proposed algorithm made all the working paths and backup paths converge on different fibers as much as possible,and switched idle or backup resources into sleep mode to realize power saving.Simulation results show that,compare with traditional algorithms,this algorithm can obtain notable power saving while maintaining a low blocking probability.
出处
《计算机应用研究》
CSCD
北大核心
2014年第6期1828-1832,共5页
Application Research of Computers
基金
国家自然科学基金资助项目(60972069
61001105)
重庆市自然科学基金重点项目(2011BA2041)
重庆市教委科学技术研究项目(KJ110531)
重庆市高校优秀人才支持计划资助项目(2011-29)
关键词
波分复用网络
专有保护
节能
阻塞率
WDM networks
dedicated path protection
power saving
blocking probability