CPC H04B 10/032 (2013.01) | 9 Claims |
1. A method for determining distributed fiber optic sensing (DFOS) sensor assignments tolerant of a single link failure, the method comprising:
providing a DFOS network having a plurality of nodes optically connected by a plurality of optical links, said network defined by G(V,E), where V is a set of end nodes, and E is a set of optical fiber links that and connect the end nodes in the V set, and G is subject to a single link failure;
determining possible primary DFOS sensor assignments as primary_route_set;
determining all backup DFOS sensor assignments as backup_route_set; and
from the primary_route_set and the backup_route_set, selecting a minimum set that provides shared protection against the single link failure and provides sensor services without interruption during the single link failure;
wherein the primary_route_set comprises primary_routes and the backup_route_set comprises backup_routes, the backup_routes exhibiting a tree topology and each backup_route provides backup protection to a plurality of primary_routes; and
wherein any routes considered for inclusion into the primary_route_set and the backup_route_set are considered equally, and the primary DFOS and backup DFOS sensor assignments are made as a one-step global optimization.
|