Category: Telecommunications

SpaceX satellite signals used like GPS to pinpoint location on Earth

Credit: Unsplash/CC0 Public Domain Engineering researchers have developed a method to use signals broadcast by Starlink internet service satellites to accurately locate a position here on Earth, much like GPS does. It is the first time the Starlink system has been harnessed by researchers outside SpaceX for navigation. The Starlink satellites, sent into orbit by…

Compact amplifier could revolutionise optical communication

The novel compact optical amplifier is thousands of times smaller than its precursor. Credit: Ping Zhao, Zhichao Ye and Yen Strandqvist/Chalmers University of Technology Researchers at Chalmers University of Technology, Sweden, present a unique optical amplifier that is expected to revolutionize both space and fiber communication. The new amplifier offers high performance, is compact enough…

Why does my internet connection feel slow and jumpy, even when my internet speed is high?

Credit: Jeshoots.com/Unsplash, CC BY-SA Of the 8.2 million homes and businesses active on Australia’s National Broadband Network (NBN) in July 2021, 77% are now reported to be on a broadband plan that delivers speeds of at least 50 megabits per second (Mbps). This is plenty to accommodate a typical household’s needs for video streaming (Netflix…

Don’t fidget! WiFi will count you

Credit: CC0 Public Domain Researchers in UC Santa Barbara professor Yasamin Mostofi’s lab have enabled, for the first time, counting a stationary seated crowd using WiFi signals, and without relying on people to carry a device. The technique, which also counts through walls, needs only a wireless transmitter and receiver outside the area of interest…

AI-powered tool used to map sustainable roofs globally

Graphical abstract. Credit: DOI: 10.1016/j.landurbplan.2021.104167 As cities around the world continue to urbanize, there is a greater need to expand and optimize existing spaces. Cities have accelerated looking into how underutilized rooftop spaces might contribute to climate action, food production, and other purposes. Sustainable roofs, such as those with greenery and photovoltaic panels, can contribute…

Satellite transmits test signals in Q and W band for the first time

The W-Cube nanosatellite transmits test signals at an altitude of 500 kilometers in the Q and W band (37.5 and 75 GHz) in order to explore new frequencies for future data transmissions. Credit: Fraunhofer-Gesellschaft In June, the W-Cube nanosatellite began its journey aboard a Falcon 9 rocket from Cape Canaveral to polar orbit. About a…

Computer scientist warns global internet is not prepared for a large solar storm

Credit: Pixabay/CC0 Public Domain Sangeetha Abdu Jyothi, a computer scientist at the University of California, Irvine, presented her findings last week at the SIGCOMM 2021 data communication conference regarding her concerns about vulnerability in the global internet communication structure. She believes that a major coronal mass ejection could wreak havoc on international internet communications due…

New technology could bring the fastest version of 5G to your home and workplace

UC San Diego electrical and computer engineering Ph.D. student Ish Jain poses with the new millimeter wave setup that he developed. The setup improves the throughput and reliability of millimeter wave signals. Credit: University of California – San Diego Consumers of today’s 5G cellphones may have experienced one of the following tradeoffs: impressive download speeds…

LG sets new record for 6G transmission of data at 100 meters

Credit: LG A team of researchers at Korea’s LG Electronics, working with a group at Fraunhofer-Gesellschaft, has successfully sent data 100 meters over a 6G signal. Officials at LG have posted details of their test of the next step wireless transmission technology on their company news page. As 5G networks for cellular service have slowly…

T-Mobile acknowledges breach of customer data, launches probe

T-Mobile said it was investigating reports of a data breach that could have affected sensitive information of 100 million customers. T-Mobile on Monday acknowledged a breach of customer information after a hacker group claimed to have obtained records of 100 million of the operator’s US customers and offered some of the data on the dark…

Encouraging coexistence: New model cuts measurement needs for spectrum sharing by about 33%

Mathematician Jacob Rezac uses a NIST modeling technique to find configurations that enable Wi-Fi and Bluetooth devices (located amid the blue wires) to share communications channels. Credit: Coder/NIST Researchers at the National Institute of Standards and Technology (NIST) have developed a modeling technique that can save time and money in estimating how to configure wireless…

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