Dynamic bandwidth allocation with optimal number of renegotiations in ATM networks

This paper introduces a scheme for online dynamic bandwidth allocation for variable bit rate (VBR) traffic over ATM networks. The presented method determines the optimum bandwidth renegotiation time and bandwidth amount to allocate to VBR traffic source by minimizing predefined cost functions. Traffic rate predictor designed by wavelets is provided as feedback to the system. The results show that the introduced scheme minimizes both under-utilization of the available capacity and queuing delays. The proposed method can also be deployed in Weighted Fair Queuing disciplines to dynamically update a weight coefficient assigned to an application.