光突发交换网络中新型减小竞争冲突方案

A novel contention decreasing method in optical burst switching networks

光突发交换是下一代光网络中的有效核心交换技术之一,在光突发交换网络中数据突发的调度是影响交换性能的重要因素,如何有效地对数据突发进行合理调度,以减小丢包率正是关键问题所在。采用在波长域业务整形与边缘节点延迟调度相结合的方法对数据突发进行调度,与LAUC-VF算法进行仿真对比分析,该方法能有效地降低突发包丢失率。

Optical burst Switching（OBS）is considered as one of core technologies for next generation optical switching networks.In OBS networks,the scheduling algorithm for bursts is important for the performance of switching network.And how to schedule burst efficiently and reduce the lost probability of bursts are the key issue.Compared with latest available unused channel with void filling（LAUC-VF） by simulation,adopting combining traffic engineering in the wavelength domain with delayed burst scheduling at the ingress nodes to schedule data bursts is an efficient method to reduce burst loss probability.