Title :
On performance limitations of congestion control
Author :
Sandberg, H. ; Hjalmarsson, H. ; Jönsson, U.T. ; Karlsson, G. ; Johansson, K.H.
Author_Institution :
ACCESS Linnaeus Centre, R. Inst. of Technol. (KTH), Stockholm, Sweden
Abstract :
Fundamental performance limitations on congestion control is discussed in relation to the information that is available in the controller. Three control architectures that all use bottle-neck buffer delay information of various form as inputs and sending rate as outputs are considered. It is shown that feedback delays from buffer to senders set limits on the achievable performance measured through fairness, efficiency and stability. We apply our findings to TCP FAST and can make some new interesting control theoretic interpretations of that protocol.
Keywords :
telecommunication congestion control; transport protocols; TCP FAST; bottle-neck buffer delay information; congestion control; Communication system traffic control; Delay effects; Delay estimation; Distributed control; Feedback; Internet; Propagation delay; Protocols; Stability; Traffic control;
Conference_Titel :
Decision and Control, 2009 held jointly with the 2009 28th Chinese Control Conference. CDC/CCC 2009. Proceedings of the 48th IEEE Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-3871-6
Electronic_ISBN :
0191-2216
DOI :
10.1109/CDC.2009.5399657