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中文摘要：
针对实时性网络设计了一种混合式波分复用（WavelengthDivisionMultiplexing，WDM）网络结构，其中星形广播网作子网，波长路由网络作为骨干网连接各个子网。结合了不同WDM网络的优点，给数据流提供了良好的实时性。为评价其性能，在OPNET仿真平台上用层次化建模的方法对子网和骨干网分别进行了网络域、节点域和进程域的建模，同时定义和编辑了数据帧和链路模型。从网络延迟、网络吞吐量和链路利用率方面仿真了网络并对网络性能结果进行了分析，得出网络最大吞吐量、链路利用率和实时要求负载。
英文摘要：
A composited WDM（Wavelength Division Multiplexing） network structure is designed for real time network, including the subnet based on star broadcasting network and the backbone network connecting all of subnets based on wavelength routing network. The network structure designed has both advantages of WDM networks and provides the real time performance for the messages. Then the layer modeling method is applied to implement the network, node and the process model in OPNET environment to evaluate network performance. And at the same time, the link model and the data model are defined and edited. The network delay, throughout and link utilization are simulated and analyzed to obtain the maximum throughout, link utihzation and the limit network load required by real time performance.
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