一种光波复用网络的最小代价启发式优化算法

摘要

本文从网络规划的角度，提出最小代价启发式算法用来减少基于密集光波复用网络架构的多层光传输网资本支出。比较了透明的网络规划开销和不透明的网络规划开销，同时与多层交换对比，并且进行实验仿真验证得出所提出的多层规划可以通过更少的开销得到更高通信容量的服务。%In the past decade, the network traffic has achieved great growth. Although the fiber optic network provides high bandwidth pipe, but the client traffi c is still low bit rate. Therefore, it is very important for low data rate client to use the high-capacity channel provided by DWDM layer. From the point of view of network planning, this paper presented a minimum cost heuristic algorithm used to reduce the capital expenditure of multilayer OTNlayer, based on DWDMnetwork architecture. We compared the cost of transparent network planning and opaque network planning.And we conducted experiments and simulations, then draw the conclusion that the proposed multilevel programming can obtain higher-capacity communications services through less cost.