Performance Model and Design Rules for Optical Systems Employing Low-Resolution DAC/ADC

We establish resolution requirements for digital/analog interfaces supporting 600 Gb/s and beyond by proposing a performance model accounting for quantization and clipping noises isolated from the ENoB. We experimentally show a good model accuracy, prediction error being less than 0.5dB in the regime of interest.

Introduction to the JOCN Special Issue on Low-Margin Optical Networks

This special issue contains a collection of invited and contributed papers on low-margin optical networks by operators, equipment vendors and academic research labs.

Experimental Analysis of NB-IoT Performance

Narrowband Internet of Things (NB-IoT) provides a set of specifications with the potential to support new IoT use cases within the cellular networks. In several IoT use cases, the User Equipment (UE) must be reachable even if it is deployed in remote locations or indoor environments. NB-IoT focuses on low-cost ...

A D-band SiGe BiCMOS Chipset with Antenna-on-Glass Module for Spectrally-Efficient and Low-Cost Wireless Backhaul

Two D-band SiGe BiCMOS TRX ICs operating at 115-155GHz and 135-170GHz, respectively, are presented. The ICs can deliver Psat >13dBm and have a measured average NF of 8dB. A 1-meter 150-GHz wireless TX-link with a 64-element antenna-on-glass module of >20 dBi gain is demonstrated. Measured 256-QAM 8/16Gb/s (EVM = 3.8/5.3%) ...

Cooperative AI-based e2e Network Slice Scaling

The 5G network Slicing provides an end-to-end virtual network with dedicated capacity and other service specific QoS characteristics such as delay, response time, or service availability. This calls for coordinated and flexible resource control mechanisms spanning across multiple domains involved in the e2e service chain. In this demo, we focus ...

Implementing a Nokia Bell Labs automated patch management via the Blockchain technology

1 Introduction 2 Vulnerability Management 2.1 Threats and Patch management needs . . . . . . . . . . . . . . 2.2 Patch management policies and solutions . . . . . . . . . . . . 2.3 Existing Patching management methods and its ...

Stability and performance bounds in cyclic networks using newtork calculus

With the development of real-time systems and of new wire less communication technologies having strong requirements on latencies and reliability, there is a need to compute deterministic performance bounds in networks. This paper focuses on the performance guarantees and stability conditions of networks with cyclic dependencies in the net work ...

Own Linux for Raspberry Pi

Tutorial how to roll own Linux distribution. As an example platform Raspberry Pi Zero was choose. Article starts from configuring cross compiler. Then compilation of U-Boot and Kernel is described.

Model-free Training of End-to-end Communication Systems

The idea of end-to-end learning of communication systems through neural network-based autoencoders has the shortcoming that it requires a differentiable channel model. We present in this paper a novel learning algorithm which alleviates this problem. The algorithm enables training of systems with an unknown channel model or with non-differentiable components. ...

Nicotine matters in predicting subsequent smoking after e-cigarette experimentation: A longitudinal study among Finnish adolescents

© 2019 The Authors Background: Several studies indicate an association between e-cigarette use and subsequent smoking among youth. However, most previous studies lack measures of the nicotine content of e-liquid and have not usually measured regular smoking. Methods: We tested the association between e-cigarette use, with and without nicotine, and ...

Fiber To The Tap: Pushing Coaxial Cable To Its Limit

We explore the potential of a future cable access technology that pushes the capacity of the coaxial cable network to its limits. We will show that it is possible to achieve symmetric data rates of multiple tens of gigabit per second, using the same coaxial drop cables in use today ...

High Speed Copper and Coaxial Broadband

of deeper fiber is facilitated by the ability to leverage the remaining copper drop for providing ubiquitous gigabit access to everyone within the service area. In contrast, fiber roll-outs that don't leverage the copper network are regional - as region-by-region is upgraded to full fiber, the remaining regions are under-served. ...

Protecting photonic quantum states using topology

The use of topology to protect quantum information is well-known to the condensed-matter community and, indeed, topological quantum computing is a bursting field of research and one of the competing avenues to demonstrate that quantum computers can complete certain problems that classical computers cannot. In photonics, however, we are only ...

G.mgfast - a New Generation of Copper Broadband Access

The draft ITU-T standard for MGfast technology transmission of up to 10 Gbps over copper is scheduled for completion July 2019. In addition to providing multi-gigabit-per-second access to the customer, MGfast will provide sub-millisecond latency, full-duplex transmission, enhanced support of multiple quality-of-service grades, and point-to-multipoint operation.

Digital Signal Processing in Optical Access Systems

Abstract: We analyzed the introduction of DSP in optical access. We reviewed the specific requirements of PON and compared performance and feasibility of DSP-based PON with solutions for cost-effectively increasing the bit-rate in PON without DSP

Supramolecular Self-Assembly and Organization of Collagen at Solid/Liquid Interface: Effect of Spheroid- and Rod-Shaped TiO<inf>2</inf> Nanocrystals

KGaA, Weinheim The adsorption behavior of collagen on solid surfaces is a process that determines the role of this protein to mediate cell?material interaction. Herein, the mechanism of self-assembly and organization of collagen on a model substrate is investigated in the presence of TiO2 nanoparticles. In solution, results show that ...

Ultra-Wideband Transmission Systems based on Semiconductor Optical Amplifiers

Extending the bandwidth of optical transport systems is a promising approach to increase the throughput of wavelength division multiplexed (WDM) systems. We review recent ultra-wideband (UWB) experiments and discuss the interest of using UWB semiconductor optical amplifiers (SOA) for future transmission systems. We report on UWB SOA characteristics and discuss ...

Path Loss and Directional Gain Measurements at 28 GHz for Factory Automation

Achieving adequate coverage with high gain antennas is key to realizing the full promise of mm/cm bands to support factory automation. We report an extensive measurement campaign at 28 GHz inside a factory environment, with over 400 LOS and NLOS links measured for ranges of 5-90 m, using a specialized ...

RAn resource usage prediction for a 5G slice broker

Network slicing will allow 5G network operators to oer a diverse set of services over a shared physical infrastructure. We focus on supporting the operation of the Radio Access Network (RAN) slice broker, which maps slice requirements into allocation of Physical Resource Blocks (PRBs). We rst develop a new metric, ...