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IEICE Transactions on Communications 2007 E90-B(1):21-30; doi:10.1093/ietcom/e90-b.1.21
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Copyright © 2007 The Institute of Electronics, Information and Communication Engineers

Regular Section -- Papers -- Network

Diffusion-Type Autonomous Decentralized Flow Control for Multiple Flows*

Chisa TAKANO1,2 and Masaki AIDA2

1 The author is with Traffic Engineering Division, NTT Advanced Technology Corporation (NTT-AT), Musashino-shi, 180-0006 Japan. E-mail: chisa.takano{at}ntt-at.co.jp, 2 The authors are with the Graduate School of System Design, Tokyo Metropolitan University, Hino-shi, 191-0065 Japan.


  Abstract

We have proposed a diffusion-type flow control mechanism to achieve the extremely time-sensitive flow control required for high-speed networks. In this mechanism, each node in a network manages its local traffic flow only on the basis of the local information directly available to it, by using predetermined rules. In this way, the implementation of decision-making at each node can lead to optimal performance for the whole network. Our previous studies concentrated on the flow control for a single flow. In this paper, we propose a diffusion-type flow control mechanism for multiple flows. The proposed scheme enables a network to quickly recover from a state of congestion and to achieve fairness among flows.

Key Words: flow control, autonomous decentralized control, diffusion equation, high-speed networks

Manuscript received March 29, 2006. Manuscript revised July 7, 2006.

* An earlier version of this paper was presented at ITC19[11].


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