时隙光分组交换网络中一种新的光缓存优化配置方案(英文)

A Novel Optical Buffer Configuration Optimization Scheme for Slotted Optical Packet Switching

研究了时隙光分组交换网中的光缓存配置方案 ,针对反馈共享式缓存结构 ,通过对传统的连续分布式光缓存结构中不同延迟粒度的光缓存丢包的分布情况仿真结果研究 ,发现在传统的连续分布式光缓存结构中 ,丢包主要发生在小粒度的光缓存上 ,为此 ,提出通过适当增加小粒度的光缓存的方法 ,达到有效地降低丢包率 ,仿真结果显示 。

The problem of configuring fiber delay lines (FDLs) for recirculation FDL buffer in a slotted and synchronous optical packet switched network is researched in this paper. By studying the distributions of the lost packet in switch with uniform degenerate buffers configuration, it is found that the lost packets arouse by the taking up of small granularity FDL are much more than the lost packets arouse by the taking up of large granularity FDL. So a good scheme to cut down the Packet Lost Ratio is by increasing the proportion of the small granularity FDL at a cost of decreasing the proportion of the large granularity FDL. Simulation results show this scheme is effective.