Patent ID: 7660706
Filing Date: 2010-02-09
Classification: H04L

Abstract:
1. A method for determining a bandwidth required for meeting one or more quality-of-service (“QoS”) criterion on a transmission link comprising the steps of: generating a plurality of streams of traffic for the transmission link; conducting a plurality of simulations of bandwidth for the link, based on generated traffic streams and using systematically varying values of the one or more QoS criterion; developing a statistical model of the transmission link based on the simulations, the statistical model specifying a bandwidth requirement for achieving at least one of the QoS criterion as a function of bandwidth, traffic load, queuing delay and packet loss, the model further specifying a link utilization (u), defined as a ratio of traffic load (τ) on the link to link bandwidth (β) (u=τ/β), as an algebraic function of queuing delay (δ) and delay probability (ω); and applying the developed model to determine bandwidth required to meet the one or more QoS criterion on a link.