Current Wireless News and Events

Current Wireless News and Events, Wireless News Articles.
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Capturing free-space optical light for high-speed wifi
Visible and infrared light can carry more data than radio waves, but has always been confined to a hard-wired, fiber-optic cable. Working with Facebook's Connectivity Lab, a Duke research team has now made a major advance toward the dream of ditching the fiber in fiber optics. (2021-02-11)

Pushed to the limit: A CMOS-based transceiver for beyond 5G applications at 300 GHz
Scientists at Tokyo Institute of Technology and NTT Corporation develop a novel CMOS-based transceiver for wireless communications at the 300 GHz band, enabling future beyond-5G applications. Their design addresses the challenges of operating CMOS technology at its practical limit and represents the first wideband CMOS phased-array system to operate at such elevated frequencies. (2021-02-05)

Quantum tunneling in graphene advances the age of terahertz wireless communications
Scientists from MIPT, Moscow Pedagogical State University and the University of Manchester have created a highly sensitive terahertz detector based on the effect of quantum-mechanical tunneling in graphene. The sensitivity of the device is already superior to commercially available analogs based on semiconductors and superconductors, which opens up prospects for applications of the graphene detector in wireless communications, security systems, radio astronomy, and medical diagnostics. (2021-02-03)

Scientists propose new way to detect emotions using wireless signals
A novel artificial intelligence (AI) approach based on wireless signals could help to reveal our inner emotions, according to new research from Queen Mary University of London. (2021-02-03)

Wirelessly rechargeable soft brain implant controls brain cells
Researchers have invented a smartphone-controlled soft brain implant that can be recharged wirelessly from outside the body. It enables long-term neural circuit manipulation without the need for periodic disruptive surgeries to replace the battery of the implant. Scientists believe this technology can help uncover and treat psychiatric disorders and neurodegenerative diseases such as addiction, depression, and Parkinson's. (2021-01-26)

Nonsurgical treatment for cerebral infarction using wearable wireless ultrasound devices
Korea Institute of Science and Technology(KIST) announced that the research team at the Center for Bionics, led by Dr. Kim Hyungmin, developed a wireless rehabilitation treatment technology for brain nervous system damaged by a stroke by fabricating a wearable, wireless low-intensity focused ultrasound brain stimulator. Additionally, to verify its effectiveness, this brain stimulator was applied to animal models of stroke. (2021-01-19)

Seawater as an electrical cable !? Wireless power transfers in the ocean
Toyohashi University of Technology research team has successfully transferred power and data wirelessly through seawater by using a power transmitter/receiver with four layers of ultra-thin, flat electrodes. Until now, it had been thought that wireless power transfers could only be achieved through magnetic coupling. This time, with a focus on the high-frequency properties of seawater, a third method for conductive coupling was devised, and a power transmitter/receiver was developed to achieve highly-efficient power transfers. (2021-01-13)

Tiny wireless device sheds light on combating obesity
In a new study, researchers at Texas A&M University have described a medical device that might help with weight loss and requires a simpler operative procedure for implantation. (2021-01-08)

Super surfaces
Assembling tiny chips into unique programmable surfaces, Princeton researchers have created a key component toward unlocking a communications band that promises to dramatically increase the amount data wireless systems can transmit. (2021-01-04)

Charging ahead for electric vehicles
Roads installed with wireless charging technology could become an integral feature of our cities in an electric vehicle future. (2021-01-03)

Wi-Fi technology with fiber optic-like performance for Industry 4.0
It is the first step towards high performance wireless communications in the manufacturing industry (2020-12-22)

Wireless, ultra-thin and battery-free strain sensors that are 10 times more sensitive
A research team from NUS Engineering has developed a new range of strain sensors that are 10 times more sensitive when measuring minute movements. These sensors are ultra-thin, battery-free and can transmit data wirelessly, making them attractive for a wide range of applications. (2020-12-15)

Does sharing health data help maintain weight loss?
Research from the Center for Weight, Eating and Lifestyle Science (WELL Center) in the College of Arts and Sciences at Drexel University suggests that health counselors having access to self-monitored health data would improve a person's weight loss maintenance. (2020-12-14)

Research develops new theoretical approach to manipulate light
The quest to discover pioneering new ways in which to manipulate how light travels through electromagnetic materials has taken a new, unusual twist. (2020-12-08)

No strings attached: maximizing wireless charging efficiency with multiple transmitters
Scientists at Incheon National University, Korea, develop a control strategy that allows for transferring power wirelessly through multiple transmitter coils with maximum efficiency. Unlike conventional approaches in which only the transmitter closer to the receiver is active, this novel method dispatches the optimal amount of current to each transmitter, depending on the degree of coupling with the receiver. This technique will help surpass the hurdles of wired charging in electric vehicles and industrial robots. (2020-12-04)

Surrey's new hybrid X-ray detector goes toe-to-toe with state-of-the-art rivals
A new hybrid X-ray detector developed by the University of Surrey outperforms commercial devices - and could lead to more accurate cancer therapy. (2020-11-26)

Towards 6G wireless communication networks: vision, enabling technologies, and new paradigm shifts
Recently, a long-form review titled ''Towards 6G wireless communication networks: vision, enabling technologies, and new paradigm shifts'' was published in SCIENCE CHINA Information Sciences Vol. 64, No.1. This article, co-authored by 50 researchers from 24 scientific research institutes, colleges, and companies both at home and abroad, provides a comprehensive survey of the latest progress and developmental trends about 6G networks. (2020-11-25)

The role of drones in 5G network security
A study by Giovanni Geraci, a researcher at the Department of Information and Communication Technologies, and researchers at Mississippi State University (USA), which aims to improve the security of advanced wireless networks against a series of eavesdropping, interference and identity theft. (2020-11-18)

For neural research, wireless chip shines light on the brain
Researchers have developed a chip that is powered wirelessly and can be surgically implanted to read neural signals and stimulate the brain with both light and electrical current. The technology has been demonstrated successfully in rats and is designed for use as a research tool. (2020-11-18)

Computer vision app allows easier monitoring of diabetes
A computer vision technology developed by University of Cambridge engineers has now been developed into a free mobile phone app for regular monitoring of glucose levels in people with diabetes. (2020-11-13)

Weather-proof chip aims to take self-driving tech, wireless communications to next level
A new device created by researchers at The University of Texas at Austin can overcome challenges like bad weather to deliver more secure, reliable communications. This could aid military communications in challenging areas, improve the ability of self-driving cars to see the environment around them and speed up wireless data for potential 6G networks. (2020-11-12)

JNIS: brain-computer allows patients with severe paralysis to text, email, bank
Researchers demonstrated the success of a fully implantable wireless medical device, the Stentrode™ brain-computer interface (BCI), designed to allow patients with severe paralysis to resume daily tasks -- including texting, emailing, shopping and banking online -- without the need for open brain surgery. The first-in-human study was published in the (i>Journal of NeuroInterventional Surgery™, the leading international peer-reviewed journal for the clinical field of neurointerventional surgery. (2020-10-28)

5G wireless may lead to inaccurate weather forecasts
Upcoming 5G wireless networks that will provide faster cell phone service may lead to inaccurate weather forecasts, according to a Rutgers study on a controversial issue that has created anxiety among meteorologists. (2020-09-24)

Perovskite light-emitting/detecting bifunctional fibers for wearable LiFi communication
LiFi is paradigm-shifting the common means of high-capacity wireless communication technologies and needs wearable and full-duplex compact design on account of its great significance in smart wearables as well as the 'Internet of Things'. Towards this goal, Scientist in China invented a light-emitting/detecting bifunctional fibre enabled by perovskite QDs with hybrid components, which enables the simultaneous electroluminescence and photodetection in monofilament. This work paves a way for the fabrication and integration of interoperable smart wearables. (2020-09-23)

Dresden physicists develop printable organic transistors
Scientists at the Institute of Applied Physics at TU Dresden have come a step closer to the vision of a broad application of flexible, printable electronics. The team around Dr Hans Kleemann has succeeded for the first time in developing powerful vertical organic transistors with two independent control electrodes. The results have recently been published in the renowned online journal ''Nature Communications''. (2020-09-22)

Researchers discover cyber vulnerabilities affecting bluetooth based medical devices
The Greyhound framework, named after the breed of dogs known for their hunting abilities, was designed and implemented by an SUTD-led research team to systematically sniff out security lapses in Wi-Fi and Bluetooth enabled devices. (2020-09-21)

Development of high-sensitivity, wide-IF band heterodyne receiver in THz frequency range
The National Institute of Information and Communications Technology has developed a unique superconducting hot electron bolometer mixer (HEBM) using magnetic materials. The 2 THz band HEBM produced this time has a low noise performance of about 570 K (DSB), which is about 6 times the quantum noise limit, and a wide IF band characteristic of about 6.9 GHz, which is about 3 GHz larger than the conventional structure HEBM. Both of these are world-class performance. (2020-09-18)

Monitoring sleep positions for a healthy rest
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. (2020-09-10)

Terahertz receiver for 6G wireless communications
Future wireless networks of the 6th generation (6G) will consist of a multitude of small radio cells that need to be connected by broadband communication links. In this context, wireless transmission at THz frequencies represents a particularly attractive and flexible solution. Researchers at Karlsruhe Institute of Technology (KIT) have now developed a novel concept for low-cost terahertz receivers. The results are reported in Nature Photonics (DOI: 10.1038/s41566-020-0675-0) (2020-09-08)

ITMO University scientists develop a tool for wireless charging of multiple devices
When we need to borrow a charger for our device, we often face the fact that different manufacturers produce different charger connectors. Wireless charging isn't a solution either: companies use different power transfer systems that work at different frequencies. One of the research teams based at ITMO University's Department of Physics and Engineering is engaged in this problem and has made a significant progress (2020-08-26)

NIST's SAMURAI measures 5G communications channels precisely
Engineers at the National Institute of Standards and Technology (NIST) have developed a flexible, portable measurement system to support design and repeatable laboratory testing of fifth-generation (5G) wireless communications devices with unprecedented accuracy across a wide range of signal frequencies and scenarios. (2020-08-10)

Implantable transmitter provides wireless option for biomedical devices
A Purdue University team developed a fully implantable radio-frequency transmitter chip for wireless sensor nodes and biomedical devices (2020-08-04)

How thoughts could one day control electronic prostheses, wirelessly
The current generation of neural implants record enormous amounts of neural activity, then transmit these brain signals through wires to a computer. But, so far, when researchers have tried to create wireless brain-computer interfaces to do this, it took so much power to transmit the data that the implants generated too much heat to be safe for the patient. A new study suggests how to solve his problem -- and thus cut the wires. (2020-08-04)

Novel magnetic stirrer speaks to lab equipment
A small device, called ''Smart Stirrer'', performed a function of a conventional laboratory stir bar, has an integrated microprocessor and various sensors capable of wireless and autonomous report the conversion of properties of a solution. Results are sent to a computer over Bluetooth, and any changes notify the user wirelessly. (2020-08-03)

Faster LEDs for wireless communications from invisible light
Researchers have solved a major problem for optical wireless communications - the process by which light carries information between cell phones and other devices. Light-emitting diodes (LEDs) pulse their light in a coded message that recipient devices can understand. (2020-07-30)

Wireless, optical cochlear implant uses LED lights to restore hearing in rodents
Scientists have created an optical cochlear implant based on LED lights that can safely and partially restore the sensation of hearing in deaf rats and gerbils. (2020-07-22)

Shaking light with sound
Combining integrated photonics and MEMS technology, scientists from EPFL and Purdue University demonstrate monolithic piezoelectric control of integrated optical frequency combs with bulk acoustic waves. The technology opens up integrated ultrafast acousto-optic modulation for demanding applications. (2020-07-15)

Wireless aquatic robot could clean water and transport cells
Researchers at Eindhoven University of Technology developed a tiny plastic robot, made of responsive polymers, which moves under the influence of light and magnetism. In the future this 'wireless aquatic polyp' should be able to attract and capture contaminant particles from the surrounding liquid or pick up and transport cells for analysis in diagnostic devices. The researchers published their results in the journal PNAS. (2020-07-14)

No association found between exposure to mobile devices and brain volume alterations in adolescents
New study of 2,500 Dutch children is the first to explore the relationship between brain volume and different doses of radiofrequency electromagnetic fields (2020-07-09)

5G networks have few health impacts, Oregon State study using zebrafish model finds
Findings from an Oregon State University study into the effects of radiofrequency radiation generated by the wireless technology that will soon be the standard for cell phones suggest few health impacts. (2020-07-08)

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