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AMPCS: Adaptive model predictive control scheduler for guaranteed delay in DiffServ architecture
Author(s) -
Mahramian Mehran,
Taheri Hassan,
Haeri Mohammad
Publication year - 2008
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.888
Subject(s) - computer science , quality of service , jitter , scheduling (production processes) , model predictive control , network packet , differentiated services , computer network , schedule , real time computing , control (management) , telecommunications , operating system , artificial intelligence , operations management , economics
Abstract An increasing number of different applications face the challenge of providing end‐to‐end quality of service (QoS) support such as bandwidth, delay, jitter, and packet loss. In this paper, we have focused on DiffServ architecture to improve its accuracy. We proposed a new algorithm, called Adaptive Model Predictive Control Scheduler (AMPCS), to schedule differentiated buffers in routers, using Adaptive Model Predictive Control as the controller. AMPCS regulates the service rates of aggregated traffic classes dynamically in a way that some constraints on proportional delay or absolute delay can be guaranteed. Our contribution is to apply a model predictive controller to the scheduling problem to control the QoS parameters accurately. Simulation results show that the AMPCS performs acceptable QoS differentiations at core routers while it maintains end‐to‐end delayconstraints. Copyright © 2007 John Wiley & Sons, Ltd.