The mechanisms for regulating traffic on the internet constitute one of
the largest automatic control systems yet developed. Key features of this
control problem are its necessarily decentralized nature and the fact that
feedback from the network about congestion is subject to appreciable delay
(both due to the finite speed of light). This talk will present
techniques for analysing the stability of this and similar systems, and
also modifications of the usual algorithms which can guarantee the robust
stability of a network with arbitrary topology and heterogenous round trip
times.
References:
G. Vinnicombe
On the Stability of End-to-End Congestion Control for the Internet.
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