Telecom
A team of researchers at GuardiCore Ltd., a cloud security company, has found a vulnerability in the remote controls Comcast provides its Xfinity user community. On their blog page, they relate how they were able to hijack ...
Telecom
Do 5G mobile telephones and networks pose health risks? Worries about the effect the technology has on humans and the environment have persisted as it has been deployed in various countries. What do scientists have to say ...
Sep 29, 2020
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8
Business
France on Tuesday began to auction off radio frequencies for the deployment of ultrafast 5G mobile technology, a process that will add billions of euros to the government's depleted coffers.
Sep 29, 2020
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4
Telecom
EPFL spin-off Hydromea has developed a miniature optical modem that can operate down to 6,000 meters below the ocean's surface. It is sensitive enough to collect data at very high speeds from sources more than 50 meters away.
Sep 22, 2020
4
357
Engineering
MIT researchers have developed a wireless, private way to monitor a person's sleep postures—whether snoozing on their back, stomach, or sides—using reflected radio signals from a small device mounted on a bedroom wall.
Sep 10, 2020
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135
Engineering
A team of researchers at MIT has developed a system for monitoring the activity of people at risk remotely while preserving their privacy. The researchers have written a paper describing their system, which they call RF-Diary.
Telecom
Calls via the LTE mobile network, also known as 4G, are encrypted and should therefore be tap-proof. However, researchers from the Horst Görtz Institute for IT Security (HGI) at Ruhr-Universität Bochum have shown that this ...
Aug 12, 2020
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61
Telecom
The Pentagon plans to free up a big chunk of its military airwaves in the U.S. for high-speed internet service, part of a broader push to get ahead of China in the deployment of 5G wireless technology.
Aug 10, 2020
0
9
Robotics
Imagine a dressing that releases antibiotics on demand and absorbs excessive wound exudate at the same time. Researchers at Eindhoven University of Technology hope to achieve just that, by developing a smart coating that ...
Jun 24, 2020
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741
Internet
Optics-based technologies such as optical fibers have strongly influenced the age of wired communication. Now they look set to revolutionize wireless communications as well and solve key issues with traditional radio-based ...
Jun 4, 2020
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81
Radio is the transmission of signals by modulation of electromagnetic waves with frequencies below those of visible light. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space. Information is carried by systematically changing (modulating) some property of the radiated waves, such as amplitude, frequency, or phase. When radio waves pass an electrical conductor, the oscillating fields induce an alternating current in the conductor. This can be detected and transformed into sound or other signals that carry information.
This text uses material from Wikipedia, licensed under CC BY-SA
