Simple approximations of delay distributions and their application to network modeling

• Authors: Romas Armolavicius
• Venue: ITC20'07 Proceedings of the 20th international teletraffic conference on Managing traffic performance in converged networks
• Year: 2007

This paper presents a simple approximation to the delay distributions commonly used in traffic engineering and network planning. A key advantage of the approximation is its ability to estimate end-to-end delay without requiring convolutions or Laplace transforms. Two example applications to network planning are given: first, directly to the estimation of percentiles of end-to-end delay from component subnetwork measurements, and second, to network element characterization for computing delays in signaling or other systems that exhibit complex multiple message exchanges. A consideration of the accuracy of the method is included for both examples.