Abstract
Aiming at building new global optical network infrastructure optimized with fault tracing capabilities, light transmission monitoring, packets re-routing and reconfigurations require an intelligent optical transmission system. An intelligent approach to solve the increasingly complex problems, to enhance fault tracing in the underground optical network infrastructure need to be adopted. For over forty decades now, Optical Time Domain Reflectometry (OTDR) technology has been used to determine faults distance in Fiber Optic Cable (FOC). When it comes to underground optical networking, using OTDR measurements to trace fault on the earth surface takes much longer time since the device only measures the length of underground FOC from the optical transmitter to the point of the fault. Finding the exact spot of fault on earth is a complicated task due to several factors identified in this study. A comprehensive review of previous papers on how OTDR device and other scientific techniques have been used to trace faults in underground FOC were presented in this study. Due to the identified drawbacks in the OTDR to precisely trace fault in underground FOC networks, an intelligent fault tracing technique has been proposed to aid the process. The objective of this paper sought to conduct a comprehensive systematic review of previous studies on fault-finding techniques in underground FOC. To give a clear view of the available technologies used to conduct fault finding activities in underground FOC. The available intelligent systems and the possible future directions of tracing faults in FOC promptly and in a more economical manner.
Highlights
Optical Time Domain Reflectometry (OTDR) has been the widely used device for fault tracing in optical cables for the past four decades (Caballero et al, 2012; Kumar and Rajouria, 2012)
The new model will significantly improve the fault tracing process in the underground optical networks, thereby reducing Mean Time To Repair (MTTR) and revenue loss of the industry players
The reviewed papers indicate that OTDR measurement for the underground fault-finding presents an extremely cumbersome task
Summary
OTDR has been the widely used device for fault tracing in optical cables for the past four decades (Caballero et al, 2012; Kumar and Rajouria, 2012). The measurement of the OTDR (Kumar and Rajouria, 2012) is insufficient to aid the process of identifying the earth distance This phenomenon remains one of the major challenges of tracing faults in the underground optical cable network infrastructure. The objectives of this survey sought to conduct a comprehensive review of the previous studies on fault tracing techniques in underground FOC network infrastructure. The survey localized its search on the available intelligent technologies deployed to automate the processes of tracing faults in underground optical cable network infrastructure in a more economical manner. The intelligence system integrates logic, deductive reasoning, expert systems, case-based reasoning and machine learning systems for solving problems through classification, pattern recognition, planning and many others (Eriksson et al, 2017; Potter and Jong, 2000)
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