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Imec Combines Advanced Machine Learning Algorithms and Innovations in Chip Design to Achieve cm Accuracy and Low-power Ultra Wideband Localization - Imec extends its secure proximity portfolio with next-generation high-precision and low-power ultra wideband technology - imec-int.com
Imec Combines Advanced Machine Learning Algorithms and Innovations in Chip Design to Achieve cm Accuracy and Low-power Ultra Wideband Localization

 

NewswireToday - /newswire/ - Leuven, Belgium, 2020/05/19 - Imec extends its secure proximity portfolio with next-generation high-precision and low-power ultra wideband technology - imec-int.com.

   
 
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Imec, a world-leading research and innovation hub in nanoelectronics and digital technologies, expands its secure proximity research program (for secure and very high accuracy ranging) with next-generation high-precision and low-power ultra wideband (UWB) technology. With a track record of over 15 years of UWB research, imec has been rallying experts in hardware and software to develop next-gen UWB technology that achieves a ranging accuracy of less than 10cm in challenging environments while consuming 10 times less power than today’s implementations. The technology paves the way for micro-localization applications in a wide range of domains: from secure (keyless) access and AR/VR gaming to asset tracking and robotics.

Ultra wideband technology is perfectly suited to support a variety of high accuracy and secure wireless ranging use-cases. Think of the ‘smart lock’ solutions commonly used in automotive automatically unlocking a car’s doors as its owner approaches, while locking the car when the owner moves away.

While UWB is inherently more difficult to compromise than some alternatives, its potential has largely remained untapped because of its higher power consumption and larger footprint. The innovations imec introduces today mark an important step to unlocking the technology’s full potential.

A standards-based implementation that consumes 10 times less power
“UWB’s power consumption, chip size and associated cost have been prohibitive factors to the technology’s adoption, especially when it comes to the deployment of wireless ranging applications,” explains Christian Bachmann, program manager for Secure Proximity and Sensitive Networks programs at imec. “For one, imec’s brand-new UWB chip developments result in a significant reduction of the technology’s footprint based on digital-style RF-concepts: we have been able to integrate an entire transceiver including three receivers for angle-of-arrival measurements on an area of less than 1mm².”

“Importantly, our design also targets a very low power consumption: less than 4mW/20mW (Tx/Rx) which is up to 10 times better than today’s implementations.

And it builds on imec’s longstanding expertise in secure distance bounding to increase the technology’s resilience to potential relay attacks,” he adds.

Imec’s approach to making UWB technology smaller, more cost-efficient and secure is based on digital-style RF-concepts, which also benefits implementation in advanced semiconductor process nodes. It is compliant with the new IEEE 802.15.4z standard supported by high-impact industry consortia such as the Car Connectivity Consortium (CCC) and Fine Ranging (FiRa).

Machine learning based error correction algorithms allow <10cm ranging accuracy in challenging environments
Complementing these hardware developments, researchers from IDLab (an imec research group at Ghent University) have come up with software-based enhancements that significantly improve UWB’s wireless ranging performance in challenging environments. Think of factories or warehouses where people and machines constantly move around, and with metallic obstacles causing massive reflection all of which impact the quality of UWB’s localization and distance measurements.

“Using machine learning, we created smart anchor selection algorithms that detect the (non) line-of-sight between UWB anchors and the mobile devices that are being tracked. Building on that knowledge, the ranging quality is estimated, and ranging errors are corrected.

Since our approach also comes with machine learning enabled features that enable adaptive tuning of the network’s physical layer parameters, the right steps can then be initiated to mitigate those ranging errors for instance by tuning the anchors’ radios,” explains Professor Eli De Poorter from IDLab.

“We have already demonstrated an UWB ranging accuracy of better than 10cm in such very challenging industrial environments, which is a factor 2 improvement compared to existing approaches. Additionally, while UWB localization use-cases are typically custom-built and often depend on manual configuration, our smart anchor selection software works in any scenario as it runs in the application layer,” he adds. Through these adaptive configurations, the next-generation low power and high-accuracy UWB chips can be utilized in a wide range of other use cases such as improved contact tracing during epidemics using small & privacy-aware devices.

“Imec already had a proven track record in the secure proximity domain thanks to its innovations including some world-first’s in Bluetooth Low Energy (BLE) High Accuracy and Secure Ranging,” concludes Michael Peeters, program director at imec.

“While BLE has been a true game changer for wireless ranging applications, UWB now allows us to take the next step. It will pave the way for micro-localization services in a wide range of domains: from secure (keyless) access and AR/VR gaming to asset tracking and industry 5.0 applications.

What makes imec unique is the fact that we can leverage the expertise from a wide range of experts from chip and antenna designers to machine learning wizards to really make an impact.”

The imec secure proximity research program for secure and very high accuracy ranging technology development still welcomes industrial partners, covering the entire value chain.

About imec

Imec (imec-int.com) is a world-leading research and innovation hub in nanoelectronics and digital technologies. The combination of our widely acclaimed leadership in microchip technology and profound software and ICT expertise is what makes us unique. By leveraging our world-class infrastructure and local and global ecosystem of partners across a multitude of industries, we create groundbreaking innovation in application domains such as healthcare, smart cities and mobility, logistics and manufacturing, energy and education.

As a trusted partner for companies, start-ups and universities we bring together more than 4,000 brilliant minds from almost 100 nationalities. Imec is headquartered in Leuven, Belgium and has distributed R&D groups at a number of Flemish universities, in the Netherlands, Taiwan, USA, and offices in China, India and Japan. In 2019, imec's revenue (P&L) totaled 640 million euro.

Imec is a registered trademark for the activities of IMEC International (a legal entity set up under Belgian law as a "stichting van openbaar nut”), imec Belgium (IMEC vzw supported by the Government of Flanders), imec the Netherlands (Stichting IMEC Nederland, part of Holst Centre and OnePlanet, supported by the Dutch Government), imec Taiwan (IMEC Taiwan Co.), imec China (IMEC Microelectronics (Shanghai) Co. Ltd.), imec India (Imec India Private Limited) and imec Florida (IMEC USA nanoelectronics design center).

 
 
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Imec Combines Advanced Machine Learning Algorithms and Innovations in Chip Design to Achieve cm Accuracy and Low-power Ultra Wideband Localization

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