Title :
Adaptive-CDM: A New AQM Controller to Cope with TCP/AQM Networks Dynamics
Author :
Bigdeli, Nooshin ; Haeri, Mohammad
Author_Institution :
Dept. of Electr. Eng., Sharif Univ. of Technol., Tehran
Abstract :
A new adaptive controller based on coefficient diagram method (CDM) as an active queue management (AQM) method is introduced. In the developed AQM (ACDM), the output feedback pole placement is implemented in an indirect model reference adaptive control (MRAC) scheme, in which the closed loop characteristic polynomial is determined by CDM and the system parameters are estimated using a modified recursive gradient method. This method preserves existing features of CDM controller in the control of networks with unknown or varying parameters. Simulation results illustrate the good performance of the controller
Keywords :
Internet; adaptive control; closed loop systems; computer network management; gradient methods; parameter estimation; queueing theory; recursive functions; transport protocols; AQM; CDM; MRAC; TCP; active queue management method; adaptive controller; closed loop characteristic polynomial; coefficient diagram method; model reference adaptive control scheme; parameter estimation; recursive gradient method; transmission control protocol; Adaptive control; Computer network management; Control systems; Internet; Mathematical model; Polynomials; Programmable control; Sliding mode control; State feedback; Telecommunication congestion control; AQM; CDM; adaptive controller; computer networks;
Conference_Titel :
Information, Communications and Signal Processing, 2005 Fifth International Conference on
Conference_Location :
Bangkok
Print_ISBN :
0-7803-9283-3
DOI :
10.1109/ICICS.2005.1689313
