摘要
考虑在可数背景状态下,时间离散的拟生灭过程(QBD过程)平稳分布的尾概率的渐近态。通过对QBD过程某些条件的限定,应用马尔可夫更新定理,得出在一定合理的条件下,当水平趋于无穷时的尾概率的几何衰变。通过初等方法,将该结论应用于时间离散的加入最短队模型。
We consider asymptotic behaviors of stationary tail probabilities in the discrete time quasi-birth-and-death(QBD) process with a countable background state space. Applying the Markov renewal theorem,it is shown that certain reasonable conditions of the QBD process lead to the geometric decay of the tail probabilities as the level goes to infinity. We exemplify this result using a time-discretized joining the shortest queue model.
出处
《南京气象学院学报》
CSCD
北大核心
2006年第2期235-241,共7页
Journal of Nanjing Institute of Meteorology
基金
江苏省教育厅自然科学研究计划资助项目(02KJB170002)