【作者】 刘毅；

【Author】 LIU Yi(Guilin University of Electronic Technology, Guilin 541004, China)

【机构】 桂林电子工业学院通信与信息工程系；

【摘要】 在光突发交换(OBS)系统中,光纤延迟线(FDL)和可调波长变换器(TWC)被用来解决突发交换中的资源竞争问题,其配置方式与交换性能有直接联系。通过仿真,分析比较了在N ×M交换节点中分别采用FDL结构、TWC结构和同时采用FDL结构、TWC结构的交换性能。结果表明,在同时采用FDL和TWC的配置方式下,当Load=0.9时,k=7,在B=8D的条件下能达到较低的丢包率(10 -6),交换性能更优异。更多还原

【Abstract】 Aiming to reduce system loss probability and to increase the switch efficiency of core node, this research probed into different switch efficiency of the OBS core node achieved by FDL and TWC respectively. Simulations were conducted to e-valuate the performance of different allocations in constructing the core node model. The study shows that the FDL plus TWC model is applied in core node to better improve the switch efficiency. The simulation result shows that this model can effectively improve the switch efficiency. When the core node is under 0.9 load, k=7, B= 8D, the loss probability is 10 -6.更多还原