考虑不确定信息的QoS路由算法综述

Survey of QoS Routing Algorithms Considering Uncertain Information

传统的QoS(服务质量)路由都假设网络结点的状态信息可以被准确地获知,但实际网络存在许多因素使得状态信息不确定,因此,近几年,考虑不确定信息的QoS路由算法得到了广泛深入的研究。文章讨论了网络状态的不确定信息产生的原因,分析并总结了目前考虑不确定信息的QoS单播和QoS多播路由算法,最后指出了该领域中需要进一步研究的热点问题。

Traditional QoS （Quality of Service） routing assumes that there exists precise state information in any node within networks,but in a practical network,the state information is almost uncertain.To reduce the impact upon QoS routing selection,in the recent years,QoS routing algorithms considering uncertain information have obtained deep-in research.In this paper,firstly,the reasons for production of uncertain information are discussed.Next,QoS unicast/muhieast routing algorithms considering uncertain information are analyzed and summarized.Finally,key issues are pointed out to be further studied in this field.