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

作　　者：李俊杰[1] 张汉一[1] 周炳琨[1] 焦悦光[1] 奉飞飞[1] 

机构地区：[1]清华大学电子工程系,北京100084

出　　处：《电子学报》2003年第11期1613-1617,共5页Acta Electronica Sinica

基　　金：国家自然科学基金 (No .60 1 32 0 2 0 ) ;清华-贝尔光通信系统联合实验室资助

摘　　要：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.

关 键 词：多颗粒度交换光网络 多颗粒度光交叉连接节点 波带 路由 业务分组 

分 类 号：TN929.11[电子电信—通信与信息系统]