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Online Poster Display: Radio Technology for 5G - Making It Work

CW News published by CW (Cambridge Wireless), under 5G

Twenty four posters were on display at the joint Radio Technology and Academic & Industry SIG event on 18 September. A selection are available here for those in the CW community who couldn't make the event. Please get in touch with CW if you would like introductions to anyone involved in these projects!

1. Ultra capacity wireless layer beyond 100GHz based on millimeter wave travelling wave tubes.

By Professor Claudio Paolini as part of the Horizon 2020 project. Full poster here.

H2020 ULTRAWAVE aims at developing a novel high capacity backhaul paradigm to enables 5G cell densification by exploiting frequency bands beyond 100 GHz. New millimeter wave travelling wave tubes will provide the high transmission power to create of an ultra capacity layer with more than 100 Gbps/km2 in PmP at D-band (141 – 174.8 GHz) fed by novel G-band (300 GHz) PtP high data rate links. The ULTRAWAVE system is empowered by technology advancements in three key disciplines: vacuum electronics, solid-state electronics and photonics.

Horizon 2020 Enabling Tech

2. Tunable, multiband & wideband power amplifiers for 5G applications

By Eyad Arabi, Chris Gamlath, Kevin Morris and Mark Beach. Full poster here.

typical wireless transmitter vs power amplifier network

3. Towards broadband connectivity for intelligent transport systems and passengers

By Avishek Mondal, Ben Allen, David Simmons, Justin Coon. Full poster here.

There are 1.69 billion passenger journeys in the UK a year, with an average of 57 minutes per journey. With continued increase in usage of smartphones and tablets with Wi-Fi capability, current systems in place to provide the required Wi-Fi connectivity on trains are not sufficient. One possible solution is a transport connectivity system using radio relays along the trackside, and this is analysed below.

digital wireless backbone

4. Predicting the performance of conformal and sparse arrays in the built environment

By Timothy Pelham, Geoffrey Hilton, Mark Beach. Full poster here.

Addressing the challenges of integrating mobile communications basestations into the built environment, array synthesis and raycasting techniques are combined to provide a method with allows the performance of an arbitrary array integrated into the built environment to be assessed.  Planar, conformal, and sparse arrays are presented to highlight the flexibility of this technique.

5. Detection of unusual behavior and actions in communication systems

By Robert Zakrzewski. Full poster here.

The purpose of this research is to develop methods for detection of abnormal behavior and the actions required to minimize system exposure and vulnerability.

central system with intelligent agent

6. Low-loss beam-steered metamaterial based antenna for millimetre-wave 5G systems

By Muhammad Saqib Rabbani, James Churm and Alexandros Feresidis. Full poster here.

Tuneable low-loss metamaterial technology offers unique solutions for a number of wireless applications such as beam steerable high gain antenna for 5G systems at millimetre-wave frequencies. Such enabling technologies are being investigated under the EPSRC funded project “MILLIBAN” at the University of Birmingham in collaboration with the University of Surrey. A beam-steerable (>30°) high gain (>20dBi) Leaky-Wave antenna is presented at 36GHz for 5G applications with low loss metamaterial based phase shifters and Piezo-electric actuators.

LWA Simulation Results

7. Load pull compensation in Massive MIMO

By Roger Green. Full poster here.

The aim is to provide an algorithm or process that counteracts the antenna coupling - 'load pull' in multi user Massive MIMO system. Given that, in a massive MIMO system the antenna array(s) are configured in a non linear dynamic manner.

Implementation of load pull

8. Theoretical analysis of massive arrays driven by Doherty Power Amplifiers

By Haijun Fan, Yuan Ding, George Goussetis, and María Jesús Cañavate Sánchez. Full poster here.

The massive active antenna arrays, especially at mm-wave band, call for high integration for small form factors and reduced costs. Consequently the use of integration-incompatible isolators (normally placed between the power amplifier (PA) and the antenna element) becomes unfavorable. This in turn leaves the PA exposed to non-ideal antenna matching as well as load-pull effects associated with mutual coupling between the radiating elements. Doherty PAs have been widely adopted since they can provide high power efficiency at back-off output power state for prevalent high peak-to-average power ratio modulated signals, such as OFDM. Based on the phenomenon observed, the theoretical modelling of the behavior of antenna array driven by Doherty PA is presented, and is validated with ADS simulations.

four element antenna array structure

9. Over-the-air test method for 5G mmWave frequency devices

By David Reyes, Mark Beach, Evangelos Mellios, Moray Rumney. Full poster here.

The aim is to develop an over-the-air (OTA) test method to evaluate the performance of 5G millimetre wave (mmWave) devices and facilitate a robust and cost-effective emulation of the wireless channel.

10. 5G Programming Infrastructure Converging Disaggregated Network and Compute Resources

By V. Kalokidou, S. Typos, E. Mellios, A. Doufexi, A. Nix. Full poster here.

5G-PICTURE will design and develop an integrated, scalable and open 5G infrastructure which supports operational and end-user services for both ICT and “vertical" industries. Vertical use cases include Smart city and IoT, Industry (video applications), Stadium and Rail (mmWave and sub-6GHz technologies).

5G Picture Network Deployment

11. Dynamically Reconfigurable Optical-Wireless Backhaul/Fronthaul with Cognitive Control Plane for Small Cells and Cloud-RANs

By V. Kalokidou, A. Doufexi, M.A. Beach. Full poster here.

The aim of the project is to create a converged optical & wireless network solution relying on flexible infrastructure able to support Backhaul (BH) & Fronthaul (FH) networks required to cope with future challenges imposed by 5G Random Access Networks (RANs).

5G Xhaul network deployment

12. Analysis and Modelling of Massive MIMO Channels

By Mr Henry Brice, Professor Mark Beach, Dr Evangelos Mellios. Full poster here.

This poster presents an overview of some research in the analysis and modelling of Massive MIMO channels, with a focus on mobility analysis, wavefronts and ray-tracing. Features of the Massive MIMO channel are presented with an analysis of their properties.

Mobility scenarios

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