Adaptive Allocation of Bandwidth by Access Router of Mobile Internet ill Differentiated Service Domain

Abstract

In this thesis, an adaptive algorithm for bandwidth allocation in differentiated services architecture has been proposed. Uplink bandwidth allocation in mobile Internet by the access router is the main area of implementation of the algorithm. The algorithm allocates bandwidth to the users, depending on the service level agreements between users and service provider, requirements of a running application, and the available resources in the network. In accordance with the changes in the network load, the algorithm can change its resource allocation adaptively. The proposed algorithm also favors real-time traffics over non-real-time ones for smoothening the operations of real-time application \vhen the network is congested. The algorithm has been implemented in NS2 network simulator with a simple network of five sources, one destination/sink, and one access router. The simulation results indicate that the algorithm can be a useful mechanism for bandwidth allocation in access router under differentiated services architecture.