基于不精确状态信息的服务质量路由技术

传统的服务质量(QoS)路由假设网络节点拥有精确的状态信息,这与实际网络环境并不相符,因此会严重影响算法的性能,基于不精确状态信息的QoS路由技术应运而生。首先论述产生不精确状态信息的各种原因,然后给出了多种解决方案,接着简要描述了迄今为止主要的基于不精确状态信息的QoS路由算法,最后对这些算法进行分析和比较,指出各自的利弊和适用环境。

Quality - of - Service Routing with Imprecise State Information

Traditional quality -of -service ro uting assumes that the nodes in the network have pre-cise state information,which is not true in real network environment and drastically degrades the perfor-mance of the algorithms,so quality -of -service routing with imprecise s tate information came into being.This paper first discusses various r easons that cause the state information imprecise,then gives several me th-ods to tackle with them.After describing several hitherto important QoS routing algorithms,this paper com-pares and analyzes these algorithms and at last points out their pros and c ons and the environment that each of them is suitable to.