An Approximation Method for Multiservice Loss Performance in Hierarchical Networks.

Autor: Hutchison, David, Kanade, Takeo, Kittler, Josef, Kleinberg, Jon M., Mattern, Friedemann, Mitchell, John C., Naor, Moni, Nierstrasz, Oscar, Pandu Rangan, C., Steffen, Bernhard, Sudan, Madhu, Terzopoulos, Demetri, Tygar, Doug, Vardi, Moshe Y., Weikum, Gerhard, Mason, Lorne, Drwiega, Tadeusz, Yan, James, Huang, Qian, Ko, King-Tim
Zdroj: Managing Traffic Performance in Converged Networks; 2007, p901-912, 12p
Abstrakt: This paper presents an approximation method — Multiservice Overflow Approximation (MOA), to compute traffic loss in multi-tier hierarchical networks with multiservice overflows. With the MOA method, we first obtain the variances of multiservice non-Poisson overflows in each tier by a blocking probability matching approach, and then compute the call blocking probability of multiservice overflow traffic by a modified Fredericks & Hayward's approximation. The results obtained by the MOA method are verified by simulations. Compared with an existing approximation method based on multi-dimensional Markov-Modulated Poisson Process analysis, the MOA method achieves an accurate estimation of overflow traffic loss at a much lower computational cost, particularly for high-load multi-tier hierarchical networks [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index