Beyond 400 Gb/s Direct Detection over 80km for DCI Applications

Due to the growing demand for cloud services with high availability, high connection speed and low latency, distributed data-center has emerged as a key architecture for future optical network. This architecture relies on power and cost-efficient solutions for 400 Gb/s and beyond client interfaces over distances up to 80 km ...

DO AGEING OF MARGINS BECOME MORE ATTRACTIVE IN WDM NETWORKS WITH 64 GBAUD TRANSPONDERS AND REGENERATORS?

Optical transport networks are evolving towards a full exploitation of physical layer resources thanks to the combination of elastic optical transponders and optical performance monitoring. If the quality of transmission achieved on a lightpath is provided by coherent receivers, elastic transponders can adjust their data rate to take advantage of ...

103nm Ultra-Wideband Hybrid Raman/SOA Transmission over 3×100 km SSMF

We report on the ultra-wideband (UWB) transmission of a 103 nm signal over 3×100 km of standard single mode fiber (SSMF). We characterize the nonlinear stimulated Raman scattering (SRS) effects occurring in high power regime for this UWB spectrum. We study the evolution of SRS over the bandwidth when tilting ...

Net 800 Gb/s Transmission over 605 km using 99.5 GBd PM-64QAM with High-speed CMOS Digital-to-Analog Converter

We demonstrate the transmission over 605 km of a 800 Gb/s 99.5 GBd polarization multiplexed (PM) 64QAM channel inserted in a wavelength division multiplexed (WDM) full C-band spectrum, using cutting-edge high-speed CMOS digital-to-analog converter (DAC), with digital and optical spectrum optimization technique.

Responsivity enhancement of double heterojunction bipolar transistors for wireless terahertz communication

We report a detailed experimental study of the responsivity and output impedance matching of InP DHBTs used as detectors for high data-rate terahertz wireless communication.

Numerical Simulations of Pulsating Heat Pipes, Part 1: Modelling

The pulsating nature of a closed loop pulsating heat pipe (CLPHP) makes the prediction of its thermal-hydraulic performance extremely challenging. Unfortunately, the design of CLPHPs is still quite an empirical process, requiring testing of many prototypes by cold plate fabricators and thus inhibiting their possibilities for application. This means that ...

Transmission of 90 Gbd 32 QAM over 480 km of SSMF with Kramers-Kronig Detection

We demonstrate transmission at a record symbol rate 90 GBaud with Kramers-Kronig detection. With 32 QAM the line rate is 450 Gb/s (360 Gb/s net rate). We show successful transmission over 480 km of SSMF

Artificial Intelligence / Machine Learning for Anomaly Detection in Cloud

Hybrid Anomaly Detection Model (HADM) is a platform that filters network traffic and identifies malicious activities on the network. The platform applies data mining algorithms to effectively detect cyber attacks in high load networks. The platform uses combination of linear and learning algorithms together with protocol analyzer. The supervised algorithms ...

Enabling Ultra Reliable Wireless Communications for Factory Automation with Distributed MIMO

Factory automation is one of the most challenging use cases for 5G-and-beyond mobile networks due to strict latency, availability and reliability constraints. In this work, an indoor factory scenario is considered, and distributed multiple-input multiple-output (MIMO) schemes are investigated in order to enable reliable communication and control of the actuators ...

Experimental Demonstration of Dual-polarisation Non-linear Frequency-division Multiplexed Transmission with b-Modulation

Dual-polarisation Nonlinear Frequency Division Multiplexing (DP-NFDM) transmission has been intensively investigated recently due to its potential of doubling the capacity in comparison to single polarisation NFDM systems. However, up to now, due to many challenges in design and practical implementation, demonstrated data rates of DP-NFDM transmission systems in experiments are ...

Exact Nonlinear Frequency Division Multiplexing in Lossy Fibers

Current NFDM systems approximate lossy fibers with lossless path-average models. We evaluate a NFDM system that directly deals with suitably tapered lossy fibers. EVM gains up to 1 dB over path averaging are observed for a multi-soliton transceiver.

Nonlinear Fourier Spectrum of Truncated Multi-Soliton Pulses

Multi-soliton pulses, as special solutions of the Nonlinear Schrodinger Equation (NLSE), are a potential candidate for data modulation in optical fiber communication. Using Nonlinear Fourier Transform (NFT),a multi-soliton pulse have a simple representation in nonlinear Fourier spectrum. For data communication, the exponentially decaying tails of a multi-soliotn must be truncated. ...

Modulation over Nonlinear Spectrum: Continuous and Discrete Spectrum

Nonlinear Frequency Division Multiplexing (NFDM) is considered when data is modulated in both parts of nonlinear Fourier spectrum: continuous spectrum and discrete spectrum. Multiplexing and demultiplexing of both spectra are explained and a time-domain detection method of discrete spectrum is introduced. The transmission of NFDM symbols is experimentally demonstrated over ...

Beyond Conventional Kerr-Nonlinearity Limit with Nonlinear Frequency Division Multiplexing

Conventional linear transmission techniques are not fully compatible with a nonlinear transmission medium such as optical fibre with the Kerr-nonlinearity effect. As a consequence, the Kerr nonlinearity imposes a limit on the achievable transmission performance of optical fibre communication systems. In this paper, we show that by encoding and multiplexing ...

Modulation of the Nonlinear Spectrum in Experiment

Lab implementation of nonlinear frequency division multiplexing (NFDM) with continuous and discrete part indicates increased perturbation sensitivity for discrete spectrum modulation. Simulations allow to attribute this to noise enhancement in the NFDM demultiplexer.

Taxonomy of Dynamic Graphs

This paper is a survey of different families of dynamic graphs, and of the impact that these simple dynamics have on the overall topology of the graph. It provides a number of naturally occurring update rules, possible extensions, and explicit limit distributions. It furthermore offers a classification of design considerations, ...

Identification of the nature of IoT devices based on network protocols

In this poster, we deal with the problem of identifying the types of the connected objects in a home network. We propose different approaches to solve this problem based on network protocols such as discovery protocols. The results show that thanks to the extracted information, we manage to identify the ...

Ordinality of a voting system and reduction of coalitional manipulability

For any non-trivial voting system, there exist manipulable situations: a coalition of voters, by casting an insincere ballot, may secure an outcome that is better from their point of view. In this paper, we investigate how it is possible to reduce the manipulability rate, which is the probability of such ...

New Simulation Results on Coalitional Manipulation

Using svvamp{} simulator, we present new results on coalitional manipulation for 22 voting systems, using random models for the generation of populations, with different set of parameters. Our observations lead to several qualitative conjectures, for which we provide intuitive explanations. The main conclusion is that Instant-Runoff Voting and its variants ...

Networking Things - Securing the IoT through SDN and virtualization

The talk will present results from an internal Bell Labs project that aims at giving back to users control over their connected lives. By using virtualization and software-defined networking we scout the future of connected environments, in which dedicated, isolated network overlays, within and across administrative domains, are automatically set ...