跨域逻辑承载网映射方法研究  

Research on mapping method of logical carrying network across multiple domains

作　　者：张旻[1] 吴春明[2] 王滨[2] 姜明[1] 

机构地区：[1]杭州电子科技大学计算机学院,浙江杭州310018 [2]浙江大学计算机科学与技术学院,浙江杭州310027

出　　处：《通信学报》2012年第8期200-207,共8页Journal on Communications

基　　金：国家重点基础研究发展计划("973"计划)基金资助项目(2012CB315903);国家自然科学基金资助项目(61070157;61070213;61103200)~~

摘　　要：为了解决跨域逻辑承载网的映射问题,提出了一种以最小映射代价为目标的分层优化模型,并基于该模型采用原始分解和次梯度方法,设计了一个跨域逻辑承载网映射算法。通过理论分析证明了方法的正确性,仿真实验从收敛性、运行时间以及动态网络环境下的构建请求接收率和构建平均收益等方面验证了该方法的有效性。In order to solve the mapping problem of logical carrying network across multiple domains, a hierarchical linear program model was presented, which aims to minimize the cost of mapping. Based on this model, a mapping algorithm for logical carrying network across multiple domains was designed using primal decomposition and subgradient optimization technique. The correctness of this method was proved by theoretical analysis, and the validity of the pro- posed method was assessed by a collection of numerical simulation experiments through the performance of convergence and runtime, as well as mapping request acceptance ratio and revenue in a dynamical network environment.

关 键 词：可重构柔性承载网络 逻辑承载网 网络虚拟化 逻辑承载网映射 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]