CHANDLER, Ariz., April 4,
2024 /PRNewswire/ -- Viavi Solutions
Inc. (VIAVI) (NASDAQ: VIAV) today shared milestones in 6G
and AI research based on the company's 6G Forward Program. As 6G is
the first AI-native generation of wireless communications, data
sources such as a 6G city-scale digital twin will be vital for
training other elements of the network such as the 6G AI-Native Air
Interface.
6G City-Scale Digital Twin
In 2022, VIAVI announced
support for research at the Institute for Wireless Internet of
Things and the Open6G cooperative research center at Northeastern University, as part of the VIAVI 6G
Forward Program. A key aspect of the research was large-scale RF
propagation channel modeling based on AI and ML technologies to
develop a city-scale digital twin of a 6G network.
The digital twin research has expanded to include:
- Use of AI/ML to augment ray tracing for radio frequency (RF)
propagation modeling to drive the digital twin
- Conducting real-world measurement campaigns in the Northeastern Boston campus using the VIAVI
Ranger rugged RF capture and playback instrument
- Incorporating higher-layer KPIs in the digital twin, to more
effectively model effects of network conditions on application
performance.
"Our research collaboration with Northeastern University has led to breakthroughs in
the use of AI/ML for radio propagation modeling," said Dr.
Ian Wong, CTO Office, VIAVI. "We
believe this research is critical in enabling large-scale network
digital twins, which VIAVI is well poised to deliver given our
leading network emulation solutions in the lab and network
monitoring and optimization solutions in the field, gathering data
from actual operator networks."
"At Northeastern's Institute for the Wireless Internet of Things
(WIoT), we have been using VIAVI's state-of-the-art testing and
measurement equipment to model and deploy high-fidelity digital
twins of real-world wireless networks on our Open RAN Digital
Twinning platform, Colosseum," said Professor Tommaso Melodia, Director of WIoT at
Northeastern University. "This will
facilitate the research, development, and experimentation of
AI-driven solutions for 5G and beyond networks in a risk-free
digital-twinned world with hardware in the loop."
6G AI-Native Air Interface (AI-AI)
The AI-Native Air
Interface (AI-AI) has appeared as a shift in the conventional
methods of developing, standardizing, and commercializing
communication technologies with the goal of effectively supplying
data to applications while addressing communication problems and
hardware limitations. In the physical layer of wireless
communications, the neural receiver concept suggests replacing
traditional signal processing blocks with trained AI models.
To enable comprehensive testing of neural receivers, VIAVI has
developed and demonstrated its own receiver as part of an
end-to-end test and training environment. The base station employs
an AI-aided constellation design, where the modulation block is
replaced with a neural network to design custom constellation for
the receiver. The VIAVI in-house developed neural receiver is
generalizable over various channel models and modulations, delay
and doppler, signal-to-noise ratio (SNR) and other conditions,
which is vital for deployment in practical systems. VIAVI used
open-source and in-house libraries to implement the transceiver
architecture.
"VIAVI continues to explore and develop groundbreaking future
generations of wireless technology, and we are at the frontier of
AI-native 6G," said Dr. Stephen
Wang, Managing Director, VIAVI Marconi Labs. "From neural
receivers to rate-splitting multiple access for semantic networks,
our 6G research helps the industry create networks that dynamically
adapt to different environments and conditions. We look forward to
working with research labs and network equipment manufacturers to
accelerate development of these technologies."
About VIAVI
VIAVI (NASDAQ: VIAV) is a global provider
of network test, monitoring and assurance solutions for
telecommunications, cloud, enterprises, first responders, military,
aerospace and railway. VIAVI is also a leader in light management
technologies for 3D sensing, anti-counterfeiting, consumer
electronics, industrial, automotive, government and aerospace
applications. Learn more about VIAVI at www.viavisolutions.com.
Follow us on VIAVI Perspectives, LinkedIn and YouTube.
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SOURCE VIAVI Solutions