【摘要】 在光传输设计软件PTDS平台上建立了一个三节点的双向双纤环网,通过改变光纤的损耗和改变仿真系统中光功率计的接收功率来模拟单处光纤故障,仿真了该环网在给定的波长分配策略和保护策略下在单处光纤故障下的自愈性能。仿真结果的分析表明,采用该方案设计的环网具有较好的自愈性能,为环形网络的设计提供了依据。更多还原

【Abstract】 The broad applications and extensive research interests have been placed on ring networks due to its excellent performance in network survivability and its simplicity. A three-node, bi-directional, two-fiber ring network is implemented on the basis of PTDS platform, and a simulation for single fiber failure can be realized through changing the fiber loss and then the receiving power of powermeter of the simulation system. The survivability of the ring network on a single fiber failure is simulated under the given policy for RWA(routing and wavelength assignment). The analysis of simulation result indicates that the ring network introduced in this paper has excellent survivability and the result is helpful in designing the ring network.更多还原