An efficient approach of controlling traffic congestion in scale-free networks

Zonghua Liu, Weichuan Ma, Huan Zhang, Yin Sun and P.M. Hui

Physica A: Statistical Mechanics and its Applications, 2006, vol. 370, issue 2, 843-853

Abstract: We propose and study a model of traffic in communication networks. The underlying network has a structure that is tunable between a scale-free growing network with preferential attachments and a random growing network. To model realistic situations where different nodes in a network may have different capabilities, the message or packet creation and delivering rates at a node are assumed to depend on the degree of the node. Noting that congestions are more likely to take place at the nodes with high degrees in networks with scale-free character, an efficient approach of selectively enhancing the message-processing capability of a small fraction (e.g. 3%) of the nodes is shown to perform just as good as enhancing the capability of all nodes. The interplay between the creation rate and the delivering rate in determining non-congested or congested traffic in a network is studied more numerically and analytically.

Keywords: Scale-free; Traffic congestion; Packet delivering (search for similar items in EconPapers)
Date: 2006
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:370:y:2006:i:2:p:843-853

DOI: 10.1016/j.physa.2006.02.021

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