Abstract

Retracted article: Based on the reliability theory of power communication network, reliability analytic methods arc proposed for Ethernet passive optical network (EPON) protection networking of the power distribution communication access layer. By using the system availability theory, the reliability and cost of EPON protection networking arc quantitatively analyzed for the access layer of four kinds of power distribution communication network, i. c., tree-type network of single power supply redundancy protection, hand-in-hand network of whole chain protection, dual-power dual-T network of full link protection, and ring-type protection network. The optimal networking solutions arc discussed and summed up for the EPON protection networking schemes of power distribution communication network in current operation.

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