Scalable Laws for Stable Network Congestion Control

This paper discusses flow control in networks, in which sources control their rates based on feed-back signals received from the network links, a fea-ture present in current TCP protocols. We de-velop a congestion control system which is arbitrar-ily scalable, in the sense that its stability is main-tained for arbitrary network topologies and arbi-trary amounts of delay. Such a system can be im-plemented in a decentralized way with information currently available in networks plus a small amount of additional signaling. 1 Int roduct ion Flow control in a communication network like the Internet concerns the adjustment of individua