Abstract

A mesh network can be introduced to increase the reliability of a free-space optical (FSO) communication system. We propose a simple method of evaluating the effectiveness of the mesh network to weather-related attenuation whose durations may range from seconds to minutes and of experimentally evaluating its effectiveness with the system installed in the Tokyo metropolitan area. This analysis shows that device installation heights need consideration and that the aggregated availability of FSO communication links on a node is improved by implementing a mesh network, owing to the route diversity provided by the mesh network system.

© 2002 Optical Society of America

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