Flexible next-generation optical access

Forzati, Marco; Gavler, Anders

doi:10.1109/icton.2013.6602912

Cited by 5 publications

(5 citation statements)

References 10 publications

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“…Gu et al [179] have examined the flexible SDN controlled re-arrangement of ONUs to OLTs so as to efficiently support PON service with network coding [224]. f) Flexi Access Network Node: A flexi-node for an access network that flexibly aggregates traffic flows from a wide range of networks, such as local area networks and base stations of wireless networks has been proposed in [180]. The flexi-node design is motivated by the shortcomings of the currently deployed core/metro network architectures that attempt to consolidate the access and metro networks.…”

Section: B Space Division Multiplexing (Sdm)-sdnmentioning

confidence: 99%

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Software Defined Optical Networks (SDONs): A Comprehensive Survey

Thyagaturu

Mercian

McGarry

et al. 2016

IEEE Commun. Surv. Tutorials

303

129

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The emerging Software Defined Networking (SDN) paradigm separates the data plane from the control plane and centralizes network control in an SDN controller. Applications interact with controllers to implement network services, such as network transport with Quality of Service (QoS). SDN facilitates the virtualization of network functions so that multiple virtual networks can operate over a given installed physical network infrastructure. Due to the specific characteristics of optical (photonic) communication components and the high optical transmission capacities, SDN based optical networking poses particular challenges, but holds also great potential. In this article, we comprehensively survey studies that examine the SDN paradigm in optical networks; in brief, we survey the area of Software Defined Optical Networks (SDONs). We mainly organize the SDON studies into studies focused on the infrastructure layer, the control layer, and the application layer. Moreover, we cover SDON studies focused on network virtualization, as well as SDON studies focused on the orchestration of multilayer and multidomain networking. Based on the survey, we identify open challenges for SDONs and outline future directions

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Section: B Space Division Multiplexing (Sdm)-sdnmentioning

confidence: 99%

“…Sw. [174]- [179] Flexi Access Netw. Node [180], [181] Switching Paradigm, Sec. III-C2 Converged Pkt-Cir.…”

Section: A Transceiversmentioning

confidence: 99%

Software Defined Optical Networks (SDONs): A Comprehensive Survey

Thyagaturu

Mercian

McGarry

et al. 2016

IEEE Commun. Surv. Tutorials

303

129

View full text Add to dashboard Cite

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“…1 One of the main figures of merits of the optical communication access networks is the transmission rate, which mainly depends on the transmission distance. 2,3 As the transmission distance is increased, the signal to noise ratio (SNR) degrades. This SNR degradation is due to several reasons such as deduction in the signal power, shifting in the system clock, and fiber dispersion.…”

Section: Introductionmentioning

confidence: 99%

Electrical and optical clock and data recovery in optical access networks: a comparative study

AbdźEl-Khaleq

El-Sayed

Ismail

et al. 2016

Int J Communication

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Clock and data recovery (CDR) is an essential part in high-speed telecommunication systems. The CDR is used to extract the clock and re-time the received data, which allows a synchronous operation to recover the transmitted signal. In optical access networks, electrical CDR or optical CDR implementations can be used. However, there are no clear guidelines or recommendations on which CDR implementation should be adopted for better performance. These missing clear recommendations are because the electrical CDR requires electronics design expertise whereas the optical CDR requires optical design expertise. Consequently, in this paper, an all-digital CDR, designed and implemented on the field-programmable gate array platform, and an optical CDR, developed by using fiber Bragg grating technology on the OptiSystem platform, are presented. Furthermore, the integration of these 2 CDR implementations with the optical access network is implemented, and their performance is evaluated for various transmission rates and communication distances. Finally, a comparative study in terms of the bit error rate between the all-digital CDR and the optical CDR is presented. KEYWORDSclock and data recovery, fiber Bragg grating, field-programmable gate array, optical access network 1 Int. J. Commun. Syst. 2016; 29: 2555-2564 wileyonlinelibrary.com/journal/dac

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“…In the access segment, an optical network paradigm achieving low latency, high throughput, and energy efficiency, based also on the concepts of software defined networks and a flexible grid, has been proposed by Forzati and Gavler [34].…”

Section: Super-channels and Flexible Wdm Gridsmentioning

confidence: 99%

“…Flexible transceivers Flexible modulations and distance-adaptive transceivers Metro: [30] Access: [31][32][33] Super-channels and flexible WDM grids Flexible grid Access: [34,35] Metro: [30,35] Spatial super-channels Access: [36] Optical routing at the physical layer Flow routing Access: [37][38][39] ROADM Metro: [40][41][42][43][44][45][46][47] Access: [41] Optical switching at the physical layer OPS, OLS, OBS Metro: [48][49][50][51] Access: [49,52] Flexible modulations and distance-adaptive transceivers Metro: [30] Access: [31][32][33] All these trends and solutions would enable re-configurability and programmability in metro and access segments, allowing these networks to address the challenges raised in the Section 2.…”

Section: Technological Trends Technological Solutions References For mentioning

confidence: 99%

Future Scenarios for Software-Defined Metro and Access Networks and Software-Defined Photonics

Muciaccia

Passaro

2017

Photonics

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Abstract:In recent years, architectures, devices, and components in telecommunication networks have been challenged by evolutionary and revolutionary factors which are drastically changing the traffic features. Most of these changes imply the need for major re-configurability and programmability not only in data-centers and core networks, but also in the metro-access segment. In a wide variety of contexts, this necessity has been addressed by the proposed introduction of the innovative paradigm of software-defined networks (SDNs). Several solutions inspired by the SDN model have been recently proposed also for metro and access networks, where the adoption of a new generation of software-defined reconfigurable integrated photonic devices is highly desirable. In this paper, we review the possible future application scenarios for software-defined metro and access networks and software-defined photonics (SDP), on the base of analytics, statistics, and surveys. This work describes the reasons underpinning the presented radical change of paradigm and summarizes the most significant solutions proposed in literature, with a specific emphasis to physical-layer reconfigurable networks and a focus on both architectures and devices.

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Flexible next-generation optical access

Abstract: We propose a fibre access network paradigm achieving low latency, high throughput and energy efficiency, by combining the best of PON and AON, optical and electrical forwarding, and the concepts of software defined networks, flexible grid, and cache assisted networking.

Cited by 5 publications

References 10 publications

Software Defined Optical Networks (SDONs): A Comprehensive Survey

Software Defined Optical Networks (SDONs): A Comprehensive Survey

Electrical and optical clock and data recovery in optical access networks: a comparative study

Future Scenarios for Software-Defined Metro and Access Networks and Software-Defined Photonics

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