质量水平涨落函数与动态质量路由算法

QoS fluctuation function and dynamic QoS routing

实数区间适于表示用户质量需求和网络资源的动态变化。提出质量涨落函数这一新概念,揭示了质量因素的变化与质量水平涨落之间的内在联系。在约束质量水平涨落的前提下,推广了源路由算法、基于距离向量协议和链接状态协议的质量路由算法,使之成为与用户需求和网络变化特性相适应的、体现网络服务供需平衡与适度优化思想的动态质量路由算法。最后,给出判定路由路径质量水平涨落幅度的定理及其证明。

The dynamic changing of user's requirements and network service resource supplies suggest us to use the real number intervals to capture the dynamic properties of the quality of service (QoS) factors in terms of bandwidths, delay etc., and to revel the internal relations between QoS level and QoS service resource utilization vise the QoS fluctuation function (QoSFF) which is a new concept introduced in this paper. QoSFF enables us to enhance the source QoS routing and distributed QoS routing algorithms with the ensured QoS service resource provision and controlled QoS level fluctuation. Two theorems which state the properties of QoS routing paths given by these algorithms are proved.;