Title
Optical link monitoring in fibre-to-the-x passive optical network (FTTx PON): A comprehensive survey
Abstract
As optical fibre reaches deeper into passive optical network (PON) in fibre-to-the-x (FTTx) networks, maintaining the integrity of these networks is indeed imperative. Essentially, best practices have been established throughout the installation and verification of the fibre access network. Equally significant is monitoring the optical fibre performance degradation in-service to ascertain efficient service delivery, as well as to guarantee service level agreement. Nevertheless, a minor failure in PON may lead to massive loss of data stemming from inherent passivity of network elements in optical distribution network, thus resulting in customer dissatisfaction and escalated operational expenses borne by network operators. Unfortunately, testing and monitoring optical layer have become rather intricate due to the rapid evolution of PON technology. Hence, an efficient optical layer monitoring system equipped with complete monitoring capabilities may substantially enhance the quality of service. Having that said, this study presents a review pertaining to the progress on the performance of available approaches for optical link monitoring system in PON. Recent advances in improving the performance of the optical link monitoring system, such as measurement accuracy, measurement speed, signal-to-noise (SNR) ratio, spatial resolution, and dynamic range, were investigated. Additionally, the performances of the existing approaches based on optical monitoring specifications were compared to identify an ideal monitoring framework. Finally, this paper discusses several challenges and prospects for future endeavours in formulating an effective optical link monitoring system in PON.
Year
DOI
Venue
2020
10.1016/j.osn.2020.100596
Optical Switching and Networking
Keywords
DocType
Volume
Passive optical network,Fibre-to-the-x,Fault monitoring,Optical time domain reflectometer,Fiber Bragg grating sensor
Journal
39
ISSN
Citations 
PageRank 
1573-4277
0
0.34
References 
Authors
0
5
Name
Order
Citations
PageRank
Auwalu Usman100.34
Nadiatulhuda Zulkifli200.34
Mohd Rashidi Salim300.68
K. Khairi401.01
Asrul Izam Azmi500.68