论文部分内容阅读
在OBS网络中,核心节点的调度算法是影响网络交换性能的重要因素。如何有效地对数据突发(Data Burst)分组进行合理调度,提高信道利用率,减少丢包率是关键问题所在。在讨论了两种数据信道调度算法的基础上提出了一种BHP收集调度算法,该算法在一个收集周期内对到达的多个BHP所对应的突发数据进行集中调度,从而达到合理调度。仿真结果表明BHP收集调度算法比其他两种算法的突发丢失率性能都要好。
In OBS network, the scheduling algorithm of the core node is an important factor affecting the network switching performance. How to effectively schedule data bursts, improve channel utilization, and reduce packet loss rate are the key issues. Based on the discussion of two data channel scheduling algorithms, a BHP scheduling algorithm is proposed. The algorithm schedules the burst data corresponding to multiple BHPs in a collection cycle to achieve proper scheduling. The simulation results show that the BHP scheduling algorithm has better burst loss performance than the other two algorithms.