Front-End Survivability in Wireless Optical Broadband Access Network

Abstract

Background: Survivability is the one of the key issue of wireless optical broadband (WOBAN) access network. Survivability means to provide continuous services to users if a device/link failure occurs in the network Objective: The component link failure can occur in the network due to any reason. In this condition huge data loss will occur in the network. Methods: In this paper, we consider the front-end survivability in WOBAN. We propose a novel maximum protection minimum link cost routing algorithm (MPMLC) that provides path protection with minimum link cost to front-end of the WOBAN. The proposed MPMLC algorithm assigns weight/cost to wireless link using link state prediction (LSP). Results: The path with minimum cost is selected to route the traffic (actual/affected due to failure) of front end network. The proposed algorithm outperforms in terms of reduced network delay and wireless link cost Conclusion: It is also observed from simulation results that when the multiple link failures occur in the network, proposed MPMLC algorithm exhibit better results in terms of reduced wireless link cost as compared to existing algorithm.