Resource allocation pattern in infrastructure networks

Details Resource allocation pattern in infrastructure networks Resource allocation pattern in infrastructure networks

2008-01-12

arxiv.org/abs/0801.1877v2

J. Phys. A: Math. Theor. 41 (2008) 224019

Physics

Physics and Society

Scientific paper

10.1088/1751-8113/41/22/224019

Most infrastructure networks evolve and operate in a decentralized fashion, which may adversely impact the allocation of resources across the system. Here we investigate this question by focusing on the relation between capacity and load in various such networks. We find that, due to network traffic fluctuations, real systems tend to have larger unoccupied portions of the capacities--smaller load-to-capacity ratios--on network elements with smaller capacities, which contrasts with key assumptions involved in previous studies. This finding suggests that infrastructure networks have evolved to minimize local failures but not necessarily large-scale failures that can be caused by the cascading spread of local damage.

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