TY - GEN
T1 - Designing a stable and effective PD-control AQM
AU - Li, Yi
AU - Ko, King-Tim
AU - Chen, Guanrong
AU - Sun, Jinsheng
AU - Chan, Sammy
PY - 2004
Y1 - 2004
N2 - From the control theory point of view, it is reasonable to regard the TCP congestion control mechanism as a feedback control system. The TCP congestion control is complemented by the Active Queue Management (AQM) scheme implemented in the routers which could improve the effectiveness. Recently, an effective Proportional-Differential (PD) control algorithm has been proposed as a new AQM scheme for TCP congestion control. But it is still difficult to assign the parameter values of the PD-Controller. This paper proposes a method for the design of an effective and stable PD-Control AQM for routers in the Internet. For this purpose, a first-order plus time-delay TCP model is constructed, and a relay feedback method is employed to determine a set of stable parameter values of the model. From this set of values, and the requirements of the gain and phase margin, the specified parameter values of the PD-Controller can be easily obtained by scanning the stable parameter set. © 2004 IEEE.
AB - From the control theory point of view, it is reasonable to regard the TCP congestion control mechanism as a feedback control system. The TCP congestion control is complemented by the Active Queue Management (AQM) scheme implemented in the routers which could improve the effectiveness. Recently, an effective Proportional-Differential (PD) control algorithm has been proposed as a new AQM scheme for TCP congestion control. But it is still difficult to assign the parameter values of the PD-Controller. This paper proposes a method for the design of an effective and stable PD-Control AQM for routers in the Internet. For this purpose, a first-order plus time-delay TCP model is constructed, and a relay feedback method is employed to determine a set of stable parameter values of the model. From this set of values, and the requirements of the gain and phase margin, the specified parameter values of the PD-Controller can be easily obtained by scanning the stable parameter set. © 2004 IEEE.
UR - https://www.scopus.com/pages/publications/21244445785
UR - https://www.scopus.com/pages/publications/21244445785#tab=impact
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 780386531
VL - 1
SP - 579
EP - 584
BT - 2004 8th International Conference on Control, Automation, Robotics and Vision (ICARCV)
T2 - 8th International Conference on Control, Automation, Robotics and Vision (ICARCV)
Y2 - 6 December 2004 through 9 December 2004
ER -