Telecommunications

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.... Read more

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 of help.... Read more

By leveraging cutting-edge additive manufacturing techniques and shape memory alloys, researchers at the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, have created an antenna that can change its shape based on its temperature.... Read more

Imagine taking the radio frequency properties of the dish antennas you see on rooftops and knitting them into a wearable garment—a sweater or a blanket that is ultralight, portable, easy to fold up and stow away.... Read more

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... Read more

Researchers from Princeton and MIT have found a way to intercept underwater messages from the air, overturning long held assumptions about the security of underwater transmissions.... Read more

Comcast will spin off many of its cable television networks that were once at the heart of the entertainment giant, with people increasingly swapping out their cable TV subscriptions for streaming platforms.... Read more

German and Finland expressed deep concern over the discovery Monday of a severed undersea data cable between the countries through the Baltic Sea, saying it raised suspicions of sabotage and that an investigation was underway.... Read more

A pioneering project is helping lifeboats safely navigate the shifting waters of the Solway Firth on rescue missions by harnessing data from satellites.... Read more

That ordinary smartphone in your pocket could be a powerful tool for investigating outer space. In a new study, researchers at Google and CU Boulder have transformed millions of Android phones across the globe into a fleet of nimble scientific instruments—generating one of the most detailed maps to date of... Read more

5G wireless communication services have rapidly expanded worldwide, leveraging millimeter-wave (mmW) frequencies in the 24 GHz to 71 GHz range (referred to as frequency range 2, or FR2). Looking ahead, Beyond 5G and 6G services, projected to offer ultra-fast connectivity exceeding 100 Gbit/s, are expected to be introduced in the... Read more

A South Korean research team has succeeded in developing a new technology that can detect and track illegal flying drones that cause crimes such as unauthorized flying, terrorism, and privacy invasion. This technology is expected to strengthen national security and enhance public safety against the threat of illegal drones.... Read more

The ongoing transition to a digital economy has already had one observable consequence: a sharp rise in the need for connectivity enabling rapid data transmission. In a global market where connectivity offers are evolving quickly, satellites are now achieving technical and economic performances close to those of terrestrial solutions. The... Read more

After launching at 9:29 p.m. EST Nov. 4, the SpaceX Dragon capsule docked at the International Space Station at 9:52 a.m. EST Nov. 5. The spacecraft carried more than 6,000 pounds of scientific investigations and cargo to the orbiting laboratory on SpaceX's 31st commercial resupply services mission for NASA.... Read more

The research team from the Department of Geography at SUNY Buffalo developed an innovative framework that uses a combination of 34 models to map monthly population distributions at fine resolutions. By integrating mobile phone data, building area, and detailed residential classifications, they created highly accurate population maps.... Read more