FTTH and 5G Xhaul Synergies for the Present and Future

Chanclou, Philippe; Neto, Luiz Anet; Simon, Gaël; Ankouri, Anas El; Barthomeuf, Sylvain; Saliou, Fabienne

doi:10.1109/icton.2019.8840034

Cited by 4 publications

(1 citation statement)

References 8 publications

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“…Configuring specific light sources in each ONU increases the cost of network usage and results in storage problems of various laser diodes with different wavelengths. Therefore, configuring colourless ONU modules has been a major research direction in current WDM related techniques [16][17][18]. Today, many different kinds of colourless ONU modules, such as the wavelength reutilisation using amplitude modulation, phase to amplitude modulation and reflective semiconductor optical amplifier, have been proposed [19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Full-Duplex Self-Recovery Optical Fibre Transport System Based on a Passive Single-Line Bidirectional Optical Add/Drop Multiplexer

Chang

2020

IEEE Photonics J.

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A full-duplex self-recovery optical fibre transport system is proposed on the basis of a novel passive single-line bidirectional optical add/drop multiplexer (SBOADM). This system aims to achieve an access network with low complexity and network protection capability. Polarisation division multiplexing technique, optical double-frequency application and wavelength reuse method are also employed in the transport system to improve wavelength utilisation efficiency and achieve colourless optical network unit. When the network comprises a hybrid tree-ring topology, the downstream signals can be bidirectionally transmitted and the upstream signals can continuously be sent back to the central office in the reverse pathways due to the remarkable routing function of the SBOADM. Thus, no complicated optical multiplexer/de-multiplexer components or massive optical switches are required in the transport system. If a fibre link failure occurs in the ring topology, then the blocked network connections can be recovered by switching only a single optical switch preinstalled in the remote node. Simulation results show that the proposed architecture can recover the network function effectively and provide identical transmission performance to overcome the impact of a breakpoint in the network. The proposed transport system presents remarkable flexibility and convenience in expandability and breakpoint self-recovery.

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Section: Introductionmentioning

confidence: 99%

Full-Duplex Self-Recovery Optical Fibre Transport System Based on a Passive Single-Line Bidirectional Optical Add/Drop Multiplexer

Chang

2020

IEEE Photonics J.

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Using FTTH networks for 5G system deployment: A case study in Brazil

Couto

Pontes

Segatto

2022

2022 IEEE 4th Eurasia Conference on IOT, Communication and Engineering (ECICE)

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SDN East–West cooperation in a converged fixed-mobile optical access network: enabling 5G slicing capabilities

Wang

Simon

Neto

et al. 2022

J. Opt. Commun. Netw.

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The new 5G service requirements will force operators to rethink the deployment of infrastructure and management tools. The reuse of passive optical network (PON) technology to connect antenna sites has attracted the attention of some operators, as the high availability of some 5G services, as well as ubiquitous radio coverage in a denser network, could be ensured with minimum deployment efforts. In this case, the implications of each 5G slice instance deserve to be clarified in a PON infrastructure, and a fixed-mobile converged management system in optical access networks (ANs) will be necessary for operators. Some class of service (CoS) algorithms must be developed to ensure that different and heterogeneous services are properly transported through optical fibers in a fixed-mobile converged scenario. Many organizations are considering the use of transmission containers (T-CONTs) (the indicator of the bandwidth distribution in the PON uplink) for PON slicing, but the CoS for mobile traffic in a PON has not yet been defined. In parallel, the new AN management solutions are mostly focused on software-defined network (SDN) northbound/southbound interfaces between orchestrators and abstraction entities. However, if an end-to-end 5G slice instance must be dynamically applied in a fixed-mobile converged architecture, the coordination between mobile and residential management systems is necessary. We propose a disaggregated optical line terminal (OLT) with an SDN controller that leverages the advantages of virtualization technologies and the currently deployed OLT. We propose an East–West interface between fixed and mobile SDN controllers and have successfully implemented a 5G slicing proof of concept in access transport networks using this interface. We succeeded in reducing uplink latency and jitter by 25%–50% thanks to a smart optimization of T-CONTs, which could be interesting for ultrareliable and low-latency communications applications. A discussion of T-CONTs for slicing is also given based on experimental measurements.

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FTTH and 5G Xhaul Synergies for the Present and Future

Cited by 4 publications

References 8 publications

Full-Duplex Self-Recovery Optical Fibre Transport System Based on a Passive Single-Line Bidirectional Optical Add/Drop Multiplexer

Full-Duplex Self-Recovery Optical Fibre Transport System Based on a Passive Single-Line Bidirectional Optical Add/Drop Multiplexer

Using FTTH networks for 5G system deployment: A case study in Brazil

SDN East–West cooperation in a converged fixed-mobile optical access network: enabling 5G slicing capabilities

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