Demonstration of Adaptive SDN Orchestration: A Real-Time Congestion-Aware Services Provisioning Over OFDM-Based 400G OPS and Flexi-WDM OCS

Fàbrega, Josep M.; Moreolo, Michela Svaluto; Mayoral, Arturo; Vilalta, Ricard; Casellas, Ramon; Muñoz, Raül; Yoshida, Yuki; Kitayama, Ken‐ichi; Kai, Yutaka; Nishihara, Masato; Okabe, Ryo; Tanaka, Toshiki; Takahara, Tomoo; Rasmussen, Jens C.; Yoshikane, Noboru; Cao, Xiaoyuan; Tsuritani, Takehiro; Morita, Itsuro; Habel, Kai; Freund, Ronald; López, Vı́ctor; Aguado, Alejandro; Yan, Shihao; Simeonidou, Dimitra; Szyrkowiec, Thomas; Autenrieth, Achim; Sato, Masaki; Awaji, Yoshinari; Wada, Naoya

doi:10.1109/jlt.2017.2655418

Cited by 14 publications

(11 citation statements)

References 12 publications

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“…At the other end of the network, each cell site has a programmable BVT. The (S-)BVTs can be remotely configured by the control plane, for an optimal management of the network resources [6] [7]. In addition to the bitrate variability that can cope with a dynamic traffic variation (e.g .…”

Section: Network Scheme and Signal Deliverymentioning

confidence: 99%

“…In fact, OFDM provides advanced spectrum manipulation capabilities, including arb itrary s ubcarrier suppression and bit/power loading. Thanks to these features, DD-OFDM transceivers can be ad hoc configured for achieving a certain reach and/or coping with a t arg eted d at a rate adopting low complex optoelectronic subsystems [6] [7].…”

Section: Network Scheme and Signal Deliverymentioning

confidence: 99%

See 1 more Smart Citation

Experimental Validation of a Converged Metro Architecture for Transparent Mobile Front-/Back-Haul Traffic Delivery Using SDN-Enabled Sliceable Bitrate Variable Transceivers

Fàbrega

Moreolo

Nadal

et al. 2018

J. Lightwave Technol.

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We experimentally demonstrate transpa rent a n d dynamic delivery of mobile front-/back-haul in conve rged optical me tro architecture, e mploying SDN-enabled S-B VTs ba s e d o n adaptive multicarrier modulation. The propose d architect ur e i s spe cifically tailored for a transparent services de live ry across the access and metro network segments. Therefore, several challenges are discussed, such as functional split re quirem ent s and bidirectional transmission (duplex) over these different segments. In orde r to prove the validity of this concept, net wo r k experiments have been carried out in a hybrid me tro/acce ss te stbe d. Re sults show successful connectivity at dis t a nc e s u p t o 175 km, including the access segment, a n d ca pa cit ies be yo nd 20Gb/s pe r flow.

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Section: Network Scheme and Signal Deliverymentioning

confidence: 99%

Section: Network Scheme and Signal Deliverymentioning

confidence: 99%

Experimental Validation of a Converged Metro Architecture for Transparent Mobile Front-/Back-Haul Traffic Delivery Using SDN-Enabled Sliceable Bitrate Variable Transceivers

Fàbrega

Moreolo

Nadal

et al. 2018

J. Lightwave Technol.

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“…At the other end of the network, each CPE has a programmable BVT. The (S-)BVT can be remotely configured by the SDN control and orchestration planes, for an optimal management of the network resources [3], [4]. The parameters to be configured at each (S-)BVT include wavelength, spectral occupancy and modulation format/power per flow.…”

Section: Network Scheme and Signal Deliverymentioning

confidence: 99%

“…The combination of SDN and elastic optical networking, enabled at data plane level by the adoption of the flexible channel grid and programmable sliceable bandwidth/bit rate variable transceivers (S-BVTs), opens the door to a truly dynamic and adaptive management of optical networks [3], [4]. Specifically, (S)-BVTs deliver data flows, with variable spectral occupancy and rate, according to the network and path conditions.…”

Section: Introductionmentioning

confidence: 99%

Transparent service delivery in elastic metro/access networks with cost-effective programmable transceivers

Nadal

Fàbrega

Altabás

et al. 2017

2017 19th International Conference on Transparent Optical Networks (ICTON)

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In this paper, we present and experimentally validate a transparent signal delivery scheme using programmable sliceable bandwidth/bit rate variable transceivers (S-BVTs), for converged optical access/metro networks. A programmable transceiver based on discrete multitone (DMT) directly modulated vertical cavity surface-emitting laser (VCSEL) and direct detection (DD) is proposed to efficiently increase the cost-effectiveness and scalability of the network. Variable data rates are enabled for a maximum optical spectrum occupancy of 9 GHz, while coping with a minimum power budget of 20 dB in the access segment. This allows to fully exploit system flexibility while enabling photonic integration.

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“…The combination of photonic integration with software defined networking (SDN) is considered as the most promising way to go to this direction, enabling next generation networks with 400 Gb/s and 1 Tb/s links and possibility for reconfiguration of the bandwidth resources according to the network needs [6][7][8][9][10][11]. Integrated multi-carrier transmitters have been proposed in particular for the generation of optical super-channels that offer the potential to add or remove bandwidth via the adjustment of the number of modulated optical carriers, and the selection of the modulation format and symbol rate [12][13][14][15].…”

mentioning

confidence: 99%

Multiflow Transmitter With Full Format and Rate Flexibility for Next Generation Networks

Katopodis

Mardoyan

Tsokos

et al. 2018

J. Lightwave Technol.

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Abstract-We extend our proof-of-concept demonstration of a novel multi-flow transmitter for next generation optical metro networks. The multi-flow concept is based on the combination of spectrum and polarization sliceability, and its implementation on the combination of a polymer photonic integration platform with high-speed IQ modulators. In this work, we replace the static scheme of our previous demonstration for the definition of the optical flows and the generation of the driving signals, and we unveil the true potential of the transmitter in terms of programmability and network flexibility. Using a software defined optics (SDO) platform for the configuration of the digital and optical parts of the transmitter, and the configuration of the optical switch inside the node, we demonstrate operation with flexible selection of the number and type of the optical flows, and flexible selection of the modulation format, symbol rate, emission wavelength and destination of each flow. We focus on 16 specific cases accommodating 1 or 2 optical flows with modulation format up to 64-quadrature amplitude modulation (64-QAM), and symbol rate up to 25 Gbaud. Through transmission experiments over 100 km of standard single-mode fiber, we validate the possibility of the transmitter to interchange its configuration within this range of operation cases with bit-error rate performance below the forward error correction limit. Future plans for transmitter miniaturization and extension of our SDO platform in order to interface with the software defined networking (SDN) hierarchy of true networks are also outlined.Index Terms -multi-format multi-rate multi-flow transmitters, elastic optical networks, polymers, photonic integration, software-defined optics, FPGA, InP-DHBT circuits.

show abstract

Demonstration of Adaptive SDN Orchestration: A Real-Time Congestion-Aware Services Provisioning Over OFDM-Based 400G OPS and Flexi-WDM OCS

Cited by 14 publications

References 12 publications

Experimental Validation of a Converged Metro Architecture for Transparent Mobile Front-/Back-Haul Traffic Delivery Using SDN-Enabled Sliceable Bitrate Variable Transceivers

Experimental Validation of a Converged Metro Architecture for Transparent Mobile Front-/Back-Haul Traffic Delivery Using SDN-Enabled Sliceable Bitrate Variable Transceivers

Transparent service delivery in elastic metro/access networks with cost-effective programmable transceivers

Multiflow Transmitter With Full Format and Rate Flexibility for Next Generation Networks

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