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利用概率统计理论的方法,从节点层次上定量分析了节点规模、复用波长数目以及波长转换对波分复用(WDM)波长路由网络中波长路由节点的影响。提出了基于概率统计的节点阻塞模型。数值结果突出表明波长转换能力越强的全光节点,其性能越优。为了提高网络资源的使用效率并增强全光网络的灵活性,必须实现全光网络中的虚波长路由波长转换器。通过数值计算找到了阻塞性能和代价的折中,研究中发现配置较低波长转换能力波长转换器的波长路由节点将会具备更强的性价比优势,当前在构建光通信系统时使用弱波长转换能力的光节点更可行。
Based on the theory of probability and statistics, the node size, the number of multiplexing wavelengths and the effect of wavelength conversion on wavelength routing nodes in wavelength division multiplexing (WDM) wavelength routing networks are quantitatively analyzed from the node level. A node congestion model based on probability statistics is proposed. The numerical results highlight that all-optical nodes with stronger wavelength conversion capability have better performance. In order to improve the usage efficiency of network resources and enhance the flexibility of all-optical network, it is necessary to implement the virtual wavelength routing wavelength converter in the all-optical network. The compromise between blocking performance and cost was found by numerical calculation. It was found that wavelength routing nodes with wavelength converters with lower wavelength conversion capability would be more cost-effective. Currently, weak wavelength conversion capability is used in the construction of optical communication systems The light node is more feasible.