AN ONLINE RENEGOTIATION-BASED BANDWIDTH MANAGEMENT WITH CIRCUIT ASSIGNMENT FOR VBR TRAFFIC IN COMMUNICATION NETWORKS

摘要

We propose a system that selects a circuit to service an application request to transmit data over a network. The network includes one or more low and high bandwidth circuits. The system provides admission control of routing an applications traffic, upon initialization of service request with network among dual channels each with different transmit capacity based on the applications statistical properties and link conditions. We also adapted a method that renegotiates network resources allocated to an application's variable bit rate traffic in dynamic time intervals and optimizes the number of resource renegotiations by minimizing cost functions utilizing graphical analysis. The results show that the introduced scheme minimizes both under-utilization of the available capacity and queuing delays.