WDM光网络中光开关参数的优化设计

Optimum design of switch size in WDM optical networks

引入WDM光网络中关于光开关大小的阻塞概率模型,定性分析了光开关大小(即节点度)对波长连续光网络和波长可转换光网络中阻塞概率及波长转换器增益的影响。给出一种光开关参数的优化设计方法,即在保持低阻塞概率的情况下,用小的光开关替代大容量的光开关来实现大容量的输入/输出,降低了网络的花费,且便于网络扩容。

By introducing a blocking probability model about switch size in WDM optical networks,we quantatively analyze the effects that the size of optical switch has on the blocking probability and the wavelength changer gain of continuows wavelength network and wavelength changable network.On these bases,we present an optimized design nethod of optical switch size which can provide large capacity of incoming/outgoing information with small optical switches while keeping low blocking probability.It decreases the cost of network and becomes easier to increase the capacity of an existing networks.