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Tiwari M.,Medicaps Institute of Technology and Management Indore | Singh P.,Medicaps Institute of Technology and Management Indore
Far East Journal of Electronics and Communications | Year: 2016

Survivability is solitary of the key concerns in wireless optical (FiWi)access networks, subsequently network constituent failure may cause enormous data forfeiture. Specifically in the consequence of segment failure. Aforementioned works emphasis on the fortification of WOBAN against solitary single segment catastrophe, by installing backup fibers among the backup ONUs in diverse segments. They disregard the dispute of traffic recovery and cost efficiency. Further, they underutilize the backup fibers and overlook optimizing the assortment of backup ONUs. To surmount these encounters, this paper proposes an efficient protection scheme called optimizing cost efficiency and protection for survivability for WOBAN. In it, we first partition the segments in the network in order to diminish the overheadfor the management of traffic recovery. Formerly, we select efficient ONUs in apiece segment as the backup ONU and install backup fibers among the backup ONUs of diverse segments. Beneath a constriction on the maximum number of segments, the scheme protects WOBAN against the concurrent failures of multiple segments with a minimum deployment cost for backup fibers. We propose both simulated annealing-based approach and a heuristic greedy cost effective approach to solve the joint optimization problem of selecting backup ONUs, portioning segments, and deploying backup fibers. Concluded widespread simulation, we validate that our scheme outclasses the previous works in terms of survivability and cost reserves. © 2016 Pushpa Publishing House, Allahabad, India. Source

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