Survivable Deployments of Optical Sensor Networks against Multiple Failures and Disasters: A Survey

Abstract

Optical sensing that integrates communication and sensing functions is playing a more and more important role in both military and civil applications. Incorporating optical sensing and optical communication, optical sensor networks (OSNs) that undertake the task of high-speed and large-capacity applications and sensing data transmissions have become an important communication infrastructure. However, multiple failures and disasters in OSNs can cause serious sensing provisioning problems. To ensure uninterrupted sensing data transmission, survivability has always been an important research emphasis. This paper focuses on the survivable deployment of OSNs against multiple failures and disasters. We first review and evaluate the existing survivability technologies developed for or applied to OSNs, such as fiber bus protection, self-healing architecture, and 1 + 1 protection. We then elaborate on the disaster-resilient survivability requirement of OSNs. Moreover, we propose a new k-node (edge) sensing connectivity concept, which ensures the connectivity between sensing data and users. Based on k-node (edge) sensing connectivity, the disaster-resilient survivability technologies are developed. The key technologies necessary to implement k-node (edge) sensing connectivity are also elaborated. Recently, artificial intelligence (AI) has developed rapidly. It can be used to improve the survivability of OSNs. This paper details potential development directions of survivability technologies of optical sensing in OSNs employing AI.

Hesitant-Fuzzy Sets-Based Computational Approach for Evaluating the Survivability Impact of Multi-Fiber WDM Networks: Kingdom of Saudi Arabia Perspective

“…Interaction between the entities tends to occur over the optical fiber in the usual operating state of the communications fiber. When a malfunction occurs, the network connectivity for which a recovery route is chosen is disrupted [12]. The circumstances under which communication works without interruption between the entities are called protection.…”

“…In case of error, optical network restore results into an adaptive search to recover the route. The restoration method restores the impacted network traffic during the network failure status [12]. Survivability factors also get affected by multiplexing network in wavelength segment.…”

“…In dynamic traffic, the issue is optimized by the survivable wavelength division multiplexing network numeral linear encoding. This model created disturbance for the investigator [12]. New specifications in a network have maximum network capacity while minimizing the interruption of the auditor in the operating network.…”