Analysis of 5G Radio Access Protocols for Uplink URLLC in a Connection-Less Mode

Uplink ultra-reliable low-latency communication (URLLC) entails dependable and almost instantaneous packet transmissions from industrial Internet of Things terminals to the serving base station. While most of the literature addresses terminals which are always connected to the network, here we focus on terminals which would benefit from a connection-less radio access, ...

A Packaged 0.01-26-GHz Single-Chip SiGe Reflectometer for Two-Port Vector Network Analyzers

© 1963-2012 IEEE. This article presents a packaged SiGe BiCMOS reflectometer for 0.01-26-GHz two-port vector network analyzers (VNAs). The reflectometer chip is composed of a resistive bridge coupler and two wideband heterodyne receivers for coherent magnitude and phase detection. In addition, a high-linearity receiver channel is designed to accommodate 20 ...

General Video Coding Technology in Responses to the Joint Call for Proposals on Video Compression with Capability beyond HEVC

© 1991-2012 IEEE. After the development of the High-Efficiency Video Coding Standard (HEVC), ITU-T VCEG and ISO/IEC MPEG formed the Joint Video Exploration Team (JVET), which started exploring video coding technology with higher coding efficiency, including development of a Joint Exploration Model (JEM) algorithm and a corresponding software implementation. The ...

A Framework for Unsupervised Planning of Cellular Networks Using Statistical Machine Learning

The wireless industry is moving towards developing smart cellular architectures that dynamically adjust the use of the network elements according to the service demand, and automating their operations in order to minimize both capital expenditure (CAPEX) and operation expenditure (OPEX). This involves developing efficient and unsupervised radio access network (RAN) ...

DCI Field Trial Demonstrating 1.3-Tb/s Single-Channel and 50.8-Tb/s WDM Transmission Capacity

© 1983-2012 IEEE. We demonstrate, to the best of our knowledge, the highest reported single- and multi-channel capacities over a field-deployed data center interconnection (DCI) system operating over 93 km of standard single-mode fiber using only Erbium-doped fiber amplification. Using off-the-shelf hardware components, and in particular using only a single ...

Power-Efficient Single-Sideband Transmission with Clipped Iterative SSBI Cancellation

Distributed data-center networks rely on power and cost-efficient high-speed fiber optical connections over distances up to 80 km which can be densely wavelength-division multiplexed (WDM) in the C-band. Recently, single-sideband (SSB) direct detection (DD) has been considered as an attractive transmission scheme for achieving data rates beyond 100 Gb/s per ...

Env2Vec: Testing Virtual Network Functions at Scale via a Single Deep Learning Model

Performance testing of virtual network functions (VNFs) is problematic for software testing engineers, given the wide variety of deployment environments for the VNFs. By environment, we refer to a combination of aspects that influence performance such as hardware, middleware, software version, build, enabled features, network topol- ogy, and test case, ...

Generalized dispersion Kerr solitons

We report a continuum of pulse-like soliton solutions to the generalized nonlinear Schrodinger equation with both quadratic and quartic dispersion and a Kerr nonlinearity. We show that the well-known nonlinear Schrodinger solitons, which occur in the presence of only negative (anomalous) quadratic dispersion, and pure-quartic solitons, which occur in the ...

Optical Nonlinearity Monitoring and Launch Power Optimization by Artificial Neural Networks

In this paper, we extend our conference contribution, where we presented a linear-to-nonlinear power ratio monitor based on a shallow artificial neural network and the optical power spectrum. The neural network is trained with experimental pairs of input single-channel optical power spectra and output optimal power corrections, i.e., power amendments ...

Snapshot spatial-temporal compressive imaging

We build a compressive imaging system that can reconstruct high-speed videos of two field-of-view by capturing a single frame. A single digital micromirror device is employed to implement the high-speed modulation of both scenes. We utilize the deep denoising priors into the plug-and-play framework for efficient reconstruction. Two high-speed scenes, ...

Designing MSO Operating Models For Serving Enterprise Markets

With the emergence of the fourth industrial revolution, enterprises are realizing that Information and Communication Technology (ICT) is not just a support function, but an enabler to drive their future innovation. This opens opportunities for MSOs to support enterprises in their territory to transform into digital organizations by leveraging ICT ...

UAV-Aided Air-to-Ground Cooperative Nonorthogonal Multiple Access

This article aims to improve spectrum efficiency (SE) for the unmanned aerial vehicle (UAV)-relayed cellular uplinks, through distinguishing both line-of-sight (LoS) and non-LoS (NLoS) links. Meanwhile, aiming to accommodate the air-to-ground (A2G) cooperative nonorthogonal multiple access (NOMA)-based cellular users (CUs) with a high energy efficiency (EE), a joint resource allocation ...

Fast Service Migration in 5G Trends and Scenarios

The need for faster and higher-capacity networks that can sustain modern, high-demanding applications has driven the development of 5G technology. Moreover, low-latency communication (1ms - 10ms) is a key requirement of 5G systems. Multi-access Edge Computing (MEC) can be leveraged to attain the 5G objectives, since it allows the shift ...

Rate-memory trade-off for caching and delivery of correlated sources

© 1963-2012 IEEE. This paper studies the fundamental limits of content delivery in a cache-aided broadcast network for correlated content generated by a discrete memoryless source with arbitrary joint distribution. Each receiver is equipped with a cache of equal capacity, and the requested files are delivered over a shared error-free ...

Stokes-Space Analysis of Modal Dispersion of SDM Fibers with Mode-Dependent Loss: Theory and Experiments

© 1983-2012 IEEE. Signal propagation in Space-Division Multiplexed (SDM) systems in the linear regime is dominated by the effects of modal dispersion (MD) and mode-dependent loss (MDL). While multiple models have been proposed for characterizing these phenomena separately or to study the effect of MD on MDL, the effect of ...

Real Haptics: using physical manipulation to control virtual worlds

In this work we propose Real Haptics, a novel interaction method for Mixed Reality based on two key ideas: better Embodiment by segmenting user real hands and the manipulation of physical objects, which may preserve or change their real appearance in the immersive scenario. First, we deployed a functional prototype ...

Predicted annual energy yield of III-V/c-Si tandem solar cells: modelling the effect of changing spectrum on current-matching

High efficiencies of >30% are predicted for series-connected tandem solar cells when current-matching is achieved between the wide-bandgap top cell and silicon bottom cell. Sub-cells are typically optimised for current-matching based on the standard AM1.5G spectrum, but in practice, the incident radiation on a solar cell can be very different ...

Visual Detection-Based Blockage Prediction for Beyond 5G Wireless Systems

This paper presents a novel visual detection-based approach for predicting imminent blockages of wireless radio links in industrial ultra reliable low-latency communication (URLLC) systems. The solution is based on detecting the bounding box of the UE-object and deducing from the temporal behavior of the bounding box whether the object is ...

Overturning the Eight Fallacies of Distributed Computing with the Octopus Edge Network

Named after the mollusk nervous system, the Octopus network is a sequel of low-latency ultra-reliable edge networks. Its dynamic and deterministic characteristics open a new era for distributed computing by breaking the notorious eight fallacies.

Efficient Classification of Polarization Events Based on Field Measurements

We present rare-event classification of polarization transients based on field measurements with data augmentation combined with robot-generated fiber-disturbance data. We compare machine learning methods for accuracy and required number of training sample traces.