动态业务条件多颗粒度交换光网络性能研究

Performance Evaluation of Multi-Granularity Switching Optical Networks under Dynamic Traffic Conditions

本文研究了动态业务条件下基于波带、波长两级交换的多颗粒度光交叉连接节点 (MG OXC)的优化设计 ,并提出了一种适用于多颗粒度交换光网络 (MG ON)的动态路由、波长分配和业务分组 (TrafficGrouping)算法 .利用实际网络拓扑对上述MG ON方案进行了数值仿真实验 ,比较研究了MG ON与传统OXC节点构成的波长路由光网络 (WRON)的动态业务阻塞率性能 ,结果表明MG ON的网络性能可以满足动态业务的要求 .

This paper focuses on optimized design of Multi-Granularity Optical Cross-Connect (MG-OXC) node based on two-stage (waveband and wavelength) multiplexing scheme and dynamic algorithm (including routing, wavelength assignment and traffic grouping) for Multi-Granularity Optical Networks (MG-ON), under dynamic traffic conditions. The performance of our MG-ON scenario is evaluated with numerical experiments under NSFNET and ARPANET topology, compared with OXC-based Wavelength Routed Optical Networks (WRON). The results show that the performance of MG-ON can be as good as WRON with proper design.