OBS通用仿真模型的设计与实现

仿真是通信网络技术研究中一种非常有效的分析手段,但对于光突发交换（OBS）这种新型的光交换技术,目前还缺乏一种通用的仿真模型.该文在总结现有光突发交换技术的基础上,以OPNET Modeler为工具建立了一种通用的OBS仿真模型.提出了一种在不损失精度的条件下对OBS网络体系结构进行简化设计的方案,并根据仿真需要对OBS关键设备边缘节点和核心节点的逻辑结构进行了重新设计,同时为增加模型的灵活性,增设了数据源节点和初始化节点.目的是要建立一种灵活、易用、可扩展性强的通用OBS仿真模型.

Design and Realization of a General Optical Burst Switching Network Simulation Model

Simulation is an effective method in the research of communication networks,but to the OBS technology,which is pretty new in optical switching,at present no general simulation model has been seen.In this paper,a general OBS simulation model is introduced,which is built with OPNET modeler and based on the inclusive study of the proposed OBS technologies.A simplified but performance guaranteed OBS network simulation scheme is proposed,and the logical structures of the core nodes as well as edge nodes are redesigned catering to the need of simulation.Meanwhile,data source nodes and initialization nodes are added to enhance the flexibility of the models.The overall design object is to build a generalized OBS simulation model with flexibility,easiness to use and good expansibility.