Cellphone outage in Denmark causes widespread disruption and hits emergency services

Credit: Unsplash/CC0 Public Domain One of Denmark’s largest cellphone networks suffered severe outages Thursday that prevented people from contacting emergency services, forced at least one hospital to reduce non-critical medical…

Real-world experiments identify main barriers to smartphone-based augmented reality in indoor settings

Testing conditions: (a) The LiDAR and monocular cameras are blocked to ensure only specific sensors are utilized. Note that the IMU is always utilized. (b) There are three patterns for…

Wide-incident-angle wideband radio-wave absorbers boost 5G and beyond 5G applications

Fabricated radio-wave absorber and measurement setup (a) at 30 GHz and (b) at 150 GHz. Measurement results at 30 GHz and (d) at 150 GHz. Credit: Science Tokyo 5G wireless…

Framework integrates mobile and remote sensing data for population maps

Ultra-thin film that absorbs nearly all electromagnetic waves could improve reliability of wireless communication

A conceptual diagram of the electromagnetic wave absorption and shielding material developed by the research team, along with the designed conductive pattern. Credit: Korea Institute of Materials Science (KIMS) The…

Coherent optical fiber communication system with 336 Tb/s transmission uses single light source

Conceptual image of an optical network with optical comb generation and frequency reference distribution which enables automatic frequency synchronization. Credit: National Institute of Information and Communications Technology (NICT) An international…

Many Verizon customers across the US hit by service outage

The Verizon logo is seen on a storefront, Friday, Sep. 1, 2023, in Boston. Credit: AP Photo/Michael Dwyer, File Some Verizon customers across the U.S. were hit by a service…

New method could decrease number of satellites needed for global coverage

Credit: CC0 Public Domain Low-orbit satellites could soon offer millions of people worldwide access to high-speed communications, but the satellites’ potential has been stymied by a technological limitation—their antenna arrays…

Silicon chip propels 6G communications forward

Operation schematic of the proposed all-silicon terahertz integrated polarization (de)multiplexer. Credit: Dr. Weijie Gao / Osaka University A team of scientists has unlocked the potential of 6G communications with a…

Undersea internet cables connecting Australia to the world threatened by boats, spies, natural disasters

International submarine cables connecting Australia. Credit: ACMA The Australian government this week announced it would spend A$18 million over four years on a new center aimed at keeping safe the…