A New Algorithm for Guaranteed Delay in DiffServ Architecture

QoS support is necessary for the Internet new applications to meet end-to-end requirements such as bandwidth, delay, jitter and packet loss. Unfortunately, DiffServ architecture can only provide limited service assurance. Thus, a trade-off between simplicity of the implementation and strength of the service guarantees has to be made. In this paper, we have focused on DiffServ architecture to improve strength of service guarantees. We propose a new algorithm, using Adaptive Model Predictive Control as the controller to schedule differentiated buffers in routers. Simulation results show that the new algorithm can be used as a solution for the scheduling problem to guarantee QoS parameters like absolute delay, proportional delay and jitter.