PON measurements and monitoring solutions for FTTH networks during deployment and operation

Ehrhardt, A.; Escher, F.; Schurer, L.; Foisel, H.-M.; Templin, A.; Adamy, M.; Gerlach, Christian

doi:10.1109/icton.2011.5970861

Cited by 8 publications

(4 citation statements)

References 3 publications

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“…The video is provided in the downstream direction only, usually in a 1550-nm wavelength band (traditional analog video). Even if these units have enough dynamic range to cover the splitter loss, standard OTDRs cannot test through splitters [7]. The OTDR detector would not be able to recover from the high loss induced by splitters fast enough to measure the fiber section attenuation and event loss.…”

Section: Otdr Tracementioning

confidence: 99%

Investigation of Passive Optical Network Based on QoS Issues in Wireless Fibre to the Home Architecture for Fault Identification and Detection

Praveena

Vennila

Vaishnavi

2017

Wireless Pers Commun

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At present Optical fibre cable is used as media to design long/short network and it supports high bandwidth in Gigabits per second speed. Earlier OFC is used to connect the long distance places and called Optical transport network and presently used even in local/ Access network called Optical Access network. In present environment data to be transmitted is so high due to growth in internet. Successful transmission of such a huge bandwidth is big challenging job for long distance network designer. This paper aims to explain the design and planning of a Passive Optical Network (PON) based wireless fibre to the Home architecture. The purpose is to show the behaviour of links of optical fibre when the signal goes through all the elements such as optical fibre, splitters, multiplexers and the goal is to find a good quality of signal in all receivers. The final goal pursued with this paper is to evaluate the performance of the whole system. The steady increase in the demand for broadband services and the consequent increase in the volume of generated traffic in our communication networks have motivated the need to implement next generation access networks in our territories. To develop multimedia telecommunication networks as an infrastructure, it is necessary to install highly reliable optical fibre cable network architecture like PON based fibre to the Home Network. In a point-to-multipoint architecture, PON is an appropriate architecture to provide high bandwidth for many customers. For any Internet Service Providers, the biggest challenge is to design an efficient access network like PON to ensure the QoS and maintenance of that network that includes Identification and Rectification of cable faults in that access network within short time thus enabling efficiency and reputation of ISPs. So this work deals with design and & S. Mary Praveena

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Section: Otdr Tracementioning

confidence: 99%

Investigation of Passive Optical Network Based on QoS Issues in Wireless Fibre to the Home Architecture for Fault Identification and Detection

Praveena

Vennila

Vaishnavi

2017

Wireless Pers Commun

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“…GIS Fault Segment determination: The segment of fiber is the fiber that is connecting two entities (OLT, splitter, ONT).The segment localization helps the operator to identify the faulty fiber and length of fiber which he has to repair to correct fault [2] , [9].…”

Section: A Fault Segment Determination Enginementioning

confidence: 99%

Geo-Intelligence based fiber fault localization system for rural India

Dalela

Yadav

et al. 2015

2015 International Conference on Industrial Instrumentation and Control (ICIC)

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This study paper proposes Geo-Intelligence based algorithmic development of fiber fault localization system (FFLS) for rural India. This research is to support fiber fault localization for 2, 50,000 Gram Panchayats (GP) under Govt. Of India NOFN (National Optical Fiber Network) project. In absence of basic infrastructure facilities in rural areas e.g. approaching road etc., the biggest challenge for this technical work is to digitize existing fiber based infrastructure i.e. fiber with attributes, join boxes, telephone exchanges along with incremental fiber approaching towards GPs. Geo-Intelligence based FFLS require accurate Geographical Information System (GIS) mapping of fiber with junction boxes and other important places i.e. exchanges, BTSs, FPOI(Fiber Point Of Interconnect) etc. For PON (Passive Optical Network) (as GPON network has been selected as choice for network), the fiber link is point to multipoint topology. Traditional OTDR cannot be used for fault localization in GPON (tree topology) because OTDR is designed for point to point topology. Since GPON is point to multipoint (tree topology) technology, hence present algorithmic development for fault detection is useful for traditional OTDR. The development of FFLS algorithms includes a). Extraction of technology based topological GIS mapped fiber sections (from central office to CPE) b). Extracting equipment components (active and passive) inventory c). Predicting extra fiber length between two nodes i.e. fiber spool. d). Co-relation of OTDR traces with alarm based information andUtilizing images for referencing above information. In present study ITU-T G.984.x Gigabit Passive Optical Network (GPON) based practical FFLS system has been demonstrated in lab environment.

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“…The next-generation optical access (NGOA) networks offer a potential for providing high bandwidth access to both residential and business customers, while reducing network power consumption and operational expenditures (OPEX) of the network operator [3][4][5][6]. A passive optical power splitter used in PONs is not limited to bandwidths, which provides opportunities to increase economic efficiency by future upgrades to higher bandwidth, higher subscriber counts and longer reach [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Signal to Noise Ratio (SNR) Enhancement Comparison of Impulse-, Coding- and Novel Linear-Frequency-Chirp-Based Optical Time Domain Reflectometry (OTDR) for Passive Optical Network (PON) Monitoring Based on Unique Combinations of Wavelength Selective Mirrors

Bentz¹,

Baudzus²,

Krummrich³

2014

Photonics

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We compare optical time domain reflectometry (OTDR) techniques based on conventional single impulse, coding and linear frequency chirps concerning their signal to noise ratio (SNR) enhancements by measurements in a passive optical network (PON) with a maximum one-way attenuation of 36.6 dB. A total of six subscribers, each represented by a unique mirror pair with narrow reflection bandwidths, are installed within a distance of 14 m. The spatial resolution of the OTDR set-up is 3.0 m.

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PON measurements and monitoring solutions for FTTH networks during deployment and operation

Cited by 8 publications

References 3 publications

Investigation of Passive Optical Network Based on QoS Issues in Wireless Fibre to the Home Architecture for Fault Identification and Detection

Investigation of Passive Optical Network Based on QoS Issues in Wireless Fibre to the Home Architecture for Fault Identification and Detection

Geo-Intelligence based fiber fault localization system for rural India

Signal to Noise Ratio (SNR) Enhancement Comparison of Impulse-, Coding- and Novel Linear-Frequency-Chirp-Based Optical Time Domain Reflectometry (OTDR) for Passive Optical Network (PON) Monitoring Based on Unique Combinations of Wavelength Selective Mirrors

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