Quality of Service architectures for wireless networks: IntServ and DiffServ models

Guaranteeing Quality of Service (QoS) in the Internet has been proposed using two different models-the Integrated services (IntServ) model and the Differentiated services (DiffServ) model. IntServ uses the per-flow approach to provide guarantees to individual streams, while DiffServ provides aggregate assurances for a group of applications. Both these models have been designed to work for wired networks. Our aim is to identify modifications that need to be made to make them suitable for wireless networks. In this paper, some possible modifications to the IntServ and DiffServ models for use with wireless networks are presented. A description of an experimental testbed built to implement and test the proposed enhancements, and results from the testbed are also provided