Category: Telecom

Demonstration of mass connectivity for the 6G era The National Institute of Information and Communications Technology (NICT) has developed a hybrid signal processing method that integrates an annealing-based quantum computer with classical computing for next-generation mobile communication systems. By implementing this method into a base station, simultaneous communications with 10 devices were successfully demonstrated through…

THz band testbed successfully transmits under 1,000 km/h high-mobility emulation The fifth-generation mobile communication system, also known as 5G, is expected to evolve as a critical infrastructure supporting individual users, industrial applications, and social systems. This requires access to broader frequency resources, but concerns have emerged regarding future congestion even in the existing frequency bands,…

GNSS-only method delivers stable positioning for autonomous vehicles in urban areas Global navigation satellite systems (GNSS) are vital for positioning autonomous vehicles, buses, drones, and outdoor robots. Yet its accuracy often degrades in dense urban areas due to signal blockage and reflections. Go to techxplore

No power, no phone, no radio: Why comms dropped out during the Central Victorian fires Australia has entered an era of climate instability, where communications during bushfires and extreme weather must perform under increasingly severe conditions. Go to techxplore

Optical fiber bundles offer promising solution for high-altitude laser communication systems Free-space optical communications (FSOC), which use lasers for data transmission, are a promising approach for achieving high-speed links between aircraft, spacecraft, and ground stations. However, achieving 360-degree coverage requires multiple articulated terminals installed on the fuselage of aircraft, exceeding size, weight, and power limits.…

Undersea cables cut in the Red Sea, disrupting internet access in Asia and the Mideast Undersea cable cuts in the Red Sea disrupted internet access in parts of Asia and the Middle East, experts said Sunday, though it wasn’t immediately clear what caused the incident. Go to techxplore

Novel signal detector could significantly cut energy consumption in next-generation wireless communication networks Cell-free (CF) MIMO networks are emerging as a key B5G/6G technology for improved connectivity, spectral efficiency, and service quality. A recent study proposes a novel CF-MIMO signal detector that can reduce energy consumption by up to 58%. Go to techxplore

Predicting sudden traffic congestion in real time using optical fiber cables NEC Corporation has developed an optical fiber sensing technology to monitor road conditions and accurately predict sudden traffic congestion in real time. By collecting data from existing optical fiber communications cables and analyzing real-time traffic flow data using a proprietary AI model, the researchers…

200 Gbps 6G wireless link successfully demonstrated Electronics and Telecommunications Research Institute (ETRI) has successfully demonstrated a 200 Gbps 6G wireless link using a proof-of-concept (PoC) system developed late last year. The 6G system developed by ETRI uses an ultra-wide bandwidth of 10 GHz around 160 GHz in the sub-terahertz (sub-THz) band. Go to techxplore

Global telecommunications at risk: New paper urges urgent rethink of submarine cable dependence A newly published paper by Dr. Asaf Tzachor, Dean of Reichman University’s School of Sustainability, warns that the backbone of our global internet infrastructure—submarine communication cables—is dangerously vulnerable to both natural disasters and deliberate sabotage, posing systemic risks to international communication, commerce,…

Analog repeaters could be the key to practical mmWave deployment Analog repeaters dramatically enhance millimeter-wave (mmWave) coverage in mobile networks by overcoming signal blockage, report researchers from Science Tokyo. As demonstrated in a field experiment at Ookayama Campus, low-cost repeaters connected either wirelessly or via optical fiber offer a promising solution for 5G and 6G…

Analytical model evaluates performance of grant-free communication in densely populated IoT environment Imagine a world where every smart device, from traffic sensors to wearable health monitors, can seamlessly communicate. This vision is at the heart of Massive Machine Type Communication (mMTC), a cornerstone of 5G and future 6G mobile networks. Go to techxplore

Li-Fi technology offers enhanced security and speeds 100 times faster than Wi-Fi Li-Fi (Light Fidelity) is a wireless communication technology that utilizes the visible light spectrum (400–800 THz), similar to LED light, offering speeds up to 100 times faster than existing Wi-Fi (up to 224 Gbps). While it has fewer limitations in available frequency allocation…

Quantum satellite launched into space The QUICK³ nano satellite will test components for future quantum satellite systems. The goal is to enable rapid and secure communication using quantum technology. Developed by a research consortium led by TUM professor Tobias Vogl, the satellite was launched into orbit on Monday, June 23, with a booster rocket from…

Unlocking faster multiplexing for 6G low-earth orbit satellites A novel time-division MIMO technology enables phased-array receivers to operate faster with exceptional area efficiency and low power, as reported by researchers from the Institute of Science Tokyo. The proposed system significantly reduces circuit complexity for 5G and 6G networks, including non-terrestrial nodes, by reusing signal paths…

Establishing electromagnetic wave measurement standards to ensure the performance of Korea’s Starlink The Korea Research Institute of Standards and Science has established standards that can reliably verify the performance of Korea’s developing 6G low Earth orbit satellite communication system. Go to techxplore

Algorithms aim to make real-time data processing possible anywhere on Earth In recent years, the expansion of low Earth orbit (LEO) satellite constellations has made satellite communications cool again. From providing internet access in remote regions to enabling near-instant data delivery across oceans, these networks are set to play an even greater role in the…

Smart skies: New methods for UAVs to navigate where GPS fails Navigating drones in environments without reliable Global Positioning System (GPS) signals remains a significant challenge for modern aerospace technology. A new study addresses methods for Unmanned Aerial Vehicle (UAV) localization in GPS-denied areas, exploring both absolute and relative localization techniques. Go to techxplore

UN decries hike in satellite navigation system interference The United Nations on Tuesday urged countries to boost protections amid a marked increase in efforts to interfere with satellite navigation systems like GPS that are critical for aviation and maritime safety. Go to techxplore

Next-gen indoor navigation: Integration of two positioning systems delivers robust localization in dynamic environments Indoor Positioning Systems (IPS) are essential for a wide range of applications, from robotics and drones to augmented reality. While traditional technologies like WiFi and Bluetooth often fall short in accuracy, Visible Light Positioning (VLP) stands out as a promising alternative…

Fiber optic networks enhanced with liquid crystal technology Applications such as self-driving vehicles, 6G mobile communications and quantum communications are pushing fiber optic networks to their limits. Fraunhofer researchers have joined forces with partners to devise clever ways to optimize data transmission. Optical switches with liquid crystal on silicon (LCoS) mirrors shrink data packets down…

Unlocking the future of satellite navigation with smart techniques A new study reveals advanced methods for improving orbit determination (OD) of large constellations of Low Earth Orbit (LEO) satellites, utilizing Global Navigation Satellite System (GNSS) observations and inter-satellite ranging. These innovations promise to significantly boost the accuracy and computational efficiency essential for satellite communication, remote…

Doppler radar tracks non-weather debris to aid emergency response Researchers at the Department of Energy’s Oak Ridge National Laboratory are using non-weather data from the nationwide weather radar network to understand how to track non-meteorological events moving through the air for better emergency response. Weather reports on the news show colorful, near-time representations of clouds…

New technology doubles radar resolution using novel algorithms Researchers have developed a new radar signal–processing technology that can dramatically enhance the resolution of existing low-resolution radars. This technology enables precise object recognition using existing hardware specifications without the need for bandwidth expansion. Go to techxplore

Charge your phone in your pocket with new wireless technology A groundbreaking advancement in technology is paving the way for mobile phones and other electronic devices to recharge simply by being kept in a pocket. This innovative system enables wireless charging throughout three-dimensional (3D) spaces, encompassing walls, floors, and air. Go to techxplore

AI identifies non-line-of-sight errors in global navigation satellite systems In urban environments, Global Navigation Satellite Systems (GNSS) often struggle with signal obstructions caused by tall buildings, vehicles, and other structures. These obstacles lead to Non-Line-of-Sight (NLOS) errors that cause positioning inaccuracies, which are particularly problematic for technologies like autonomous vehicles and intelligent transportation systems. Go…

Cellphone outage in Denmark causes widespread disruption and hits emergency services 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 care, and prompted security services in some regions to patrol the streets in search of people in need…

Smartphone-based augmented reality, in which visual elements are overlaid on the image of a smartphone camera, are extremely popular apps. These apps allow users to see how furniture would look in their house, or navigate maps better, or to play interactive games. The global phenomenon Pokémon GO, which encourages players to catch digital creatures through…