| Publisher | University of Toulouse-Le Mirail | ||
|---|---|---|---|
| Format | 969.5KB PDF | Date added | 02 Feb 2009 |
| Topics | Monitoring Systems, TCP - IP, Denial of Service | ||
| Downloads | 14 | ||
Several studies have considered control theory tools for traffic control in communication networks, as for example the congestion control issue in IP (Internet Protocol) routers. This paper proposes to design a linear observer for time-delay systems to address the traffic monitoring issue in TCP/AQM (Transmission Control Protocol/Active Queue Management) networks. Due to several propagation delays and the queueing delay, the set TCP/AQM is modeled as a multiple delayed system of a particular form. Hence, appropriate robust control tools as quadratic separation are adopted to construct a delay dependent observer for TCP flows estimation.
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