Exact Asymptotic Formulae of the Stationary Distribution of a Discrete-Time Two-Dimensional QBD Process
We consider a discrete-time two-dimensional process (L1,n,L2,n) on Z2+with a supplemental process Jn on a finite set,where individual processes L1,n and L2,n are both skip free.We assume that the joint process Y n = (L1,n,L2,n,Jn) is Markovian and that the transition probabilities of the two-dimensional process (L1,n,L2,n) are modulated depending on the state of the supplemental process Jn.This modulation is space homogeneous except for the boundaries of Z2+.We call this process a discrete-time two-dimensional quasi-birth-and-death(2D-QBD)process.Under several conditions,we obtain the exact asymptotic formulae of the stationary distribution in the coordinate directions.
Quasi-birth-and-death process Stationary distribution Asymptotic property
Toshihisa Ozawa Masahiro Kobayashi
Faculty of Business Administration,Komazawa University,Japan Department of Mathematical Science,Tokai University,Japan
国际会议
河北秦皇岛
英文
78-81
2017-08-21(万方平台首次上网日期,不代表论文的发表时间)