Abstract
This study proposed a new small star topology network architecture connecting a secondary fiber link between adjacent small cell base stations for disaster tolerance in the access span of a short-reach point-to-multipoint optical communication system. Compared to the edge-side optical node independent architecture, the proposed network architecture exhibits a high robustness and small number of optical components. We compared the conventional and proposed configurations for survivability in the case of a major disaster with a triple-link failure. The proposed method made it easy to add a small star-shaped network with secondary links for significant edge-side optical nodes while maintaining the basic configuration of the conventional passive optical network.
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