4th International IEEE Conference on Broadband Communications, Networks, Systems

Research Article

Controller Design for TCP Rate Management QoS Networks

  • @INPROCEEDINGS{10.1109/BROADNETS.2007.4550539,
        author={Sanjeewa Athuraliya and Harsha Sirisena},
        title={Controller Design for TCP Rate Management QoS Networks},
        proceedings={4th International IEEE Conference on Broadband Communications, Networks, Systems},
        publisher={IEEE},
        proceedings_a={BROADNETS},
        year={2010},
        month={5},
        keywords={},
        doi={10.1109/BROADNETS.2007.4550539}
    }
    
  • Sanjeewa Athuraliya
    Harsha Sirisena
    Year: 2010
    Controller Design for TCP Rate Management QoS Networks
    BROADNETS
    IEEE
    DOI: 10.1109/BROADNETS.2007.4550539
Sanjeewa Athuraliya1,*, Harsha Sirisena1,*
  • 1: Department of Electrical and Computer Engineering University of Canterbury,Chirstchurch, 8001, New Zealand
*Contact email: sanjeewa@elec.canterbury.ac.nz, h.sirisena@elec.canterbury.ac.nz

Abstract

CARM is a recent rate management technique designed to provide throughput differentiation among TCP aggregates, as may be required in QoS architectures such as DiffServ Assured Forwarding Per-Hop-Behavior. In this paper we derive the system model for a TCP aggregate that is DiffServ controlled, and use it for the analytical design of the PI controller employed in CARM. The model explicitly accounts for DiffServ parameters such as the finite token bucket depth and contract rate. The designed controller leads to fast convergence and has parameters that can be locally computed. The use of integral control action can lead to the phenomenon of integral windup in realistic network scenarios, so the controller design also includes an anti-integral-windup formulation. We present ns-2 simulation results that validate our design.