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Avoiding the Braess paradox in non-cooperative networks

Published online by Cambridge University Press:  14 July 2016

Yannis A. Korilis*
Affiliation:
Lucent Technologies
Aurel A. Lazar*
Affiliation:
Columbia University
Ariel Orda*
Affiliation:
Technion
*
Postal address: Bell Laboratories, Lucent Technologies, Holmdel, NJ 07733, USA.
∗∗Postal address: Department of Electrical Engineering, Columbia University, New York, NY 10027, USA.
∗∗∗Postal address: Department of Electrical Engineering, Technion, Haifa 32000, Israel. Email address: [email protected]

Abstract

The exponential growth of computer networking demands massive upgrades in the capacity of existing networks. Traditional capacity design methodologies, developed with the single-class networking paradigm in mind, overlook the non-cooperative structure of modern networks. Consequently, such design approaches entail the danger of degraded performance when resources are added to a network, a phenomenon known as the Braess paradox.

The present paper proposes methods for adding resources efficiently to a non-cooperative network of general topology. It is shown that the paradox is avoided when resources are added across the network, rather than on a local scale, and when upgrades are focused on direct connections between the sources and destinations. The relevance of these results for modern networks is demonstrated.

Type
Research Papers
Copyright
Copyright © Applied Probability Trust 1999 

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