一种优化的分布式光网络的动态带宽分配算法

A Kind of Optimized Dynamic Bandwidth Allocation Algorithm for Distributed Optical Network

在分析了EPON的拓扑结构及其调度机制的基础上,根据分布式计算的特点,提出了一种优化的可适用于分布式光网络的动态带宽分配算法CPDBA.该算法根据分布式计算任务的实时性和时序性,进行动态调度,并利用数据包的相关性,进行预测动态分配信用带宽.该算法能适用于分布式光网络,并减少了数据包的时延.

A kind of CPDBA algorithm which is optimized and suitable to the distributed optical network is proposed in this paper, which is based on the characteristics of distributed computer and on the topology structure and scheduling mechanism of EPON. Based on the real-time and time-order of distributed network＇s assignmerit, the algorithm carries through dynamic scheduling, forecasts dynamic allocation credit bandwidth using the pertinence of data bags. It is indicated that the algorithm is suitable to the distribute optical network and decreases the time-delay of data bags.