讨论有欠难发生的BMAP/SM/1排队模型和Geo/Geo/1离散时间排队模型。关于BMAP/SM/1排队模型,运用嵌入马氏链的方法,通过转移概率矩阵,得到队长的概率母函数。对于Geo/Geo/1离散时间排队模型,通过状态转移得到了队长和等待队长的概率母函数,并通过数值例子给出了参数对几个性能特征的影响,从而为求解各种排队指标(如:队长,逗留时间等)打下了基础。
This paper discusses the BMAP/SM/1 queue with disasters and the discrete - time Geo/Geo/1 queue with disasters. For BMAP/SM/1 queue, we derive the generating function of queueing length by use of imbedded markov chain and transition probability matrix. For the discrete - time Geo/Geo/1 queue with disasters, we derive the generating functions of queueing length and waiting queueing length by use of state transfer analyses, and using numerical results, we show the influence of parameters on several perform- ance characteristics which makes preparation for getting various queue indexes.