基于服务器系统模型的光网络容量分析

Network Capacity Analysis of Server Version WDM Optical Networks

本文介绍了一种全新的光网络分析模型——基于服务器系统的光网络,提出了基于波长变换节点服务器和波长连续节点服务器下的光网络容量线性规划模型,并采用计算机仿真对两类节点服务器下的网络容量进行了数值分析。分析结果表明通过合理配置,基于两类节点服务器的光网络可达到相同的网络容量,同时网络容量随着不同节点对所允许的最大容量变化增大而增大。

In this paper, a new architecture of optical network-the optical network based on server system is considered. From the point of this new architecture, the network can be modeled as a server system with three type servers--the access server, the node server and the link server. The network performances such as cost, energy consume and network capacity can be affected by the capability of these three type servers. New ILP formulations are proposed to analyze the network capacity under two types of node severs, with and without wavelength converter. Computer simulations are conducted to evaluate the effectiveness of these new formulations. The study has shown that the network can achieve the same throughput under the two types of node servers and the network throughput increases when the maximum allowed variation increases.