Adaptive Bi-Modal Filter for Estimating Link Load in Communication Networks
Original Publication Date: 1989-Oct-01
Included in the Prior Art Database: 2005-Jan-29
In this article a novel adaptive bi-modal filtering technique to estimate very accurately certain important traffic parameters (e.g., utilization) which are needed for adaptive route calculation in packet- switched networks is proposed. Since the traffic parameters are generally time varying, the filtering mechanism must distinguish between a real change and a temporary variation in traffic and be accurate a large percentage of time. This filtering technique is very robust and responsive to real variations at one hand, and less sensitive to temporary variations in traffic conditions. This objective is also desirable in order to limit the number of unnecessary updates and reports for route calculations.