Simple correlated flow and its application

  • Authors:
  • Alexander Andronov;Jelena Revzina

  • Affiliations:
  • Transport and Telecommunication Institute, Riga, Latvia;Transport and Telecommunication Institute, Riga, Latvia

  • Venue:
  • ASMTA'11 Proceedings of the 18th international conference on Analytical and stochastic modeling techniques and applications
  • Year:
  • 2011

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Abstract

A correlated flow of arrivals is considered in a case, where interarrival times {Xn} correspond to the Markov process with the continuous state space R+ = (0,∞). The conditional probability density function of Xn+1 given {Xn = z} is determined by means of q(x|z) = q(x|Xn = z) = σi=1kpi(z)hi(x), z,x∈R+, where {p1(z),..., pk(z)} is a probability distribution, p1(z)+...+pk(z) = 1 for all z ∈ R+; {h1(x),..., hk(x)} is a family of probability density functions on R+. This flow is investigated with respect to stationary case. One is considered as the Semi-Markov process J(t) on the state set {1, ..., k}. Main characteristics are considered: stationary distribution of J and interarrival times X, correlation and Kendall tau (τ) for adjacent intervals, and so on. Further one is considered a Markovian system on which the described flow arrives. Numerical results show that the dependence between interarrival times of the flow exercises greatly influences the efficiency characteristics of considered systems.