thus, priority queueing systems are usually adopted in the performance analysis of a router 这样对路由器的性能分析通常要采用优先排队系统的分析技巧。
the third chapter deals with a non-absolute priority queueing system b / d / 1 with decision time and two priority . this is a discrete time system . also adopting the method of imbedded markov chain, we can obtain the mean queue length for each queue 采用嵌入马尔可夫链的方法,求出了两个队队长联合分布的母函数的解析表达式,并进而求出了两个队的平均队长。