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 ...

A flexible, deterministic and highly reliable end-to-end communication network for industrial automation systems.

The convergence of information and communications technology (ICT) and operation technology (OT) into a common infrastructure for factory floors, is one of the key enablers for Industry 4.0. Time Sensitive Networking (TSN) is being developed for that purpose. It extends the Ethernet standard (IEEE 802.1) with real-time capabilities. Only TSN ...

System-level study of data duplication enhancements for 5G downlink URLLC

ABSTRACT Data duplication is studied as a fundamental enabler for ultra-reliable low-latency communication (URLLC) in fifth-generation cellular systems. It entails the simultaneous usage of multiple radio links delivering redundant data between a terminal and the network to boost the transmission reliability. However, the improved reliability comes at a cost of ...

Frequency-Domain Adaptive Filtering Revisited, Generalization to the Multi-Channel Case, and Application to Acoustic Echo Cancellation

We drive a new frequency-domain adaptive algorithm by using a frequency-domain recursive least squares criterion, minimizing an error signal in the frequency-domain. A similar criterion was proposed by Mansour and Gray by using mathematical expectations. Here, however, we propose to go one step further and derive an exact adaptive algorithm ...

Real Time Trading Of Mobile Resources In Beyond 5G Systems

5G is expected to offer download speeds as high as 1 GBps and latency lower than 10 ms that lead to the need for enormous investments. However, many small operators simply do not possess the necessary revenue in order to deploy the required infrastructure, while the rich operators are unwilling ...

Caching to the Sky: Proactive Deployment of Cache-enabled SBSs for Cellular-Connected UAVs

Enhancing LTE support for aerial users has become the study focus of recent 3rd Generation Partnership Project (3GPP) standardizations due to their high maneuverability and flexibility for on-demand deployment. A question arises: how to serve aerial users using LTE network deployments with base station (BS) antennas targeting terrestrial coverage. In ...

ClickNF: a Modular Stack for Network Function Composition

Network function virtualization calls for the replacement of specialized equipment and monolithic software deployments by functionally equivalent but leaner modular software implementations. Server-side network functions developers could especially benefit from the existence of a highly customizable yet scalable framework for the rapid design of network applications. However, balancing the conflicting ...

Cross Link Interference Suppression By Orthogonal Projector in 5G Dynamic-TDD URLLC Systems

Dynamic time division duplexing (TDD) is envisioned as a vital transmission technology of the 5G new radio, due to its reciprocal propagation characteristics. However, the potential cross link interference (CLI) imposes a fundamental limitation against the feasibility of the ultra-reliable and low latency communications (URLLC) in dynamic-TDD systems. In this ...