Tag: Telecom
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…
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…
