https://techxplore.com/telecom-news/ en-us The latest news on telecommunications, telecom, telecom technology and telecommunications technology. Thousands of satellites are currently orbiting the Earth, and there will be many more in the future. Researchers from Ruhr University Bochum and the CISPA Helmholtz Center for Information Security in Saarbrücken have assessed the security of these systems from an IT perspective. https://techxplore.com/news/2023-07-satellite-lags-decades-state-art.html Telecom Thu, 13 Jul 2023 14:55:58 EDT news608478934 British telecoms group BT on Monday announced the departure of chief executive Philip Jansen, two months after the group axed up to 55,000 jobs to slash costs. https://techxplore.com/news/2023-07-uk-telecoms-firm-bt-exit.html Business Mon, 10 Jul 2023 06:54:01 EDT news608190839 The joint research team of Electrical Engineering and Computer Science Professor JeongHo Kwak at the DGIST and Aerospace Engineering Professor Jihwan Choi at the KAIST have proposed a novel network slicing planning and handover technique applicable to next-generation low-Earth orbit (LEO) satellite network systems. Findings of the study have been published in the journal IEEE Vehicular Technology Magazine. https://techxplore.com/news/2023-07-network-slicing-technique-low-earth-orbit.html Engineering Thu, 06 Jul 2023 12:29:02 EDT news607865341 Airline passengers who have endured tens of thousands of weather-related flight delays this week got a welcome respite from the headaches Saturday, despite concerns about possible disruptions caused by new wireless 5G systems rolling out near major airports. https://techxplore.com/news/2023-07-air-isnt-hard-5g-wireless.html Telecom Sat, 01 Jul 2023 05:23:31 EDT news607407805 Fiber optics is now the fastest and most reliable technology to deliver internet connection. Data is transmitted through fast-traveling pulses of light that bounce off the walls of the fiber cables to allow the signal to travel further with less attenuation. However, fiber data transmission is subject to dispersion, or signal degradation from impairments in the optical fiber. This causes different wavelengths of light to travel at various speeds, spreading the signal over time and causing errors. https://techxplore.com/news/2023-06-chip-based-dispersion-compensation-faster-fiber.html Internet Thu, 29 Jun 2023 16:08:23 EDT news607273699 NASA's first two-way laser relay system completed its first year of experiments on June 28—a milestone for a game-changing technology that could be the future for sending and receiving data from space. https://techxplore.com/news/2023-06-nasa-laser-communications-relay-year.html Engineering Thu, 29 Jun 2023 10:51:00 EDT news607254656 President Joe Biden on Monday said that high-speed internet is no longer a luxury but an "absolute necessity," as he pledged that every household in the nation would have access by 2030 using cables made in the U.S. https://techxplore.com/news/2023-06-biden-billions-dollars-broadband-internet.html Telecom Mon, 26 Jun 2023 09:42:22 EDT news606991338 Optical data communications lasers can transmit several tens of terabits per second, despite a huge amount of disruptive air turbulence. ETH Zurich scientists and their European partners demonstrated this capacity with lasers between the mountain peak, Jungfraujoch, and the city of Bern in Switzerland. This will soon eliminate the necessity of expensive deep-sea cables. https://techxplore.com/news/2023-06-lasers-enable-internet-backbone-satellite.html Internet Tue, 20 Jun 2023 13:47:43 EDT news606487657 The massive federal effort to expand internet access to every home in the U.S. took a major step forward on Friday with the announcement of $930 million in grants to shore up connections in remote parts of Alaska, rural Texas and dozens of other places where significant gaps in connectivity persist. https://techxplore.com/news/2023-06-million-grants-biden-effort-internet.html Telecom Fri, 16 Jun 2023 09:59:27 EDT news606128363 Superfast, subatomic-sized particles called muons have been used to wirelessly navigate underground for the first time. By using muon-detecting ground stations synchronized with an underground muon-detecting receiver, researchers at the University of Tokyo were able to calculate the receiver's position in the basement of a six-story building. https://techxplore.com/news/2023-06-underground-cosmic-ray-muons.html Telecom Thu, 15 Jun 2023 11:00:01 EDT news606041385 In wireless communication, G stands for "generation" as in 4G, 5G, 6G. When it comes to data rate in optical communications though, "G" stands for gigabits per second (Gbps), and the progression doubles, as in 100G, 200G, 400G and 800G. https://techxplore.com/news/2023-06-silicon-photonic-modulator-800g-standard.html Internet Wed, 14 Jun 2023 17:20:03 EDT news605982001 Two of the U.K.'s four mobile phone operators agreed Wednesday to merge their businesses to capitalize on the rollout of next-generation 5G wireless technology in the country. https://techxplore.com/news/2023-06-vodafone-merge-uk-mobile-capitalize.html Business Wed, 14 Jun 2023 10:24:01 EDT news605957037 Cloud-based computing directly contributes to business innovation, but rural businesses lacking sufficient broadband capacity to access cloud services are missing out on their innovation-boosting potential, according to a team of researchers from Penn State and the National Science Foundation. The findings can be used by policymakers and business-support organizations to foster greater opportunities for rural innovation. https://techxplore.com/news/2023-06-digital-hinders-rural.html Business Mon, 12 Jun 2023 13:23:52 EDT news605795029 "Splinternet" refers to the way the internet is being splintered—broken up, divided, separated, locked down, boxed up, or otherwise segmented. https://techxplore.com/news/2023-06-splinternet-internet.html Internet Fri, 09 Jun 2023 12:32:04 EDT news605532721 A new transceiver design capable of both transmission and reception at frequencies over 100 GHz and at 112 Gb/s data rate could pave the way to 6G technologies, as reported by scientists at Tokyo Tech. By effectively suppressing the self-interference caused by the transmission signal leaking into the receiver, the proposed architecture reaches unprecedented data rates while maintaining a surprisingly compact size. https://techxplore.com/news/2023-06-stage-6g-fast-compact-transceiver.html Telecom Fri, 09 Jun 2023 11:30:42 EDT news605529040 A team including researchers from the National Institute of Information and Communications Technology; Sumitomo Osaka Cement Co., Ltd.; Nagoya Institute of Technology; and Waseda University has jointly developed the world's first system for the transparent relay, routing, and switching of high-speed terahertz-wave signals to different locations. https://techxplore.com/news/2023-06-world-terahertz-transparent-relay.html Telecom Tue, 06 Jun 2023 16:49:42 EDT news605288978 Amazon.com Inc. has been talking with wireless carriers about offering low-cost or possibly free nationwide mobile phone service to Prime subscribers, according to people familiar with the situation. https://techxplore.com/news/2023-06-amazon-free-mobile-prime-members.html Consumer & Gadgets Mon, 05 Jun 2023 14:00:01 EDT news605192106 An optical fiber about the thickness of a human hair can now carry the equivalent of more than 10 million fast home internet connections running at full capacity. https://techxplore.com/news/2023-05-team-industry-standard-optical-fiber.html Internet Tue, 30 May 2023 15:32:38 EDT news604679555 Reconfigurable intelligent surface (RIS) has become a promising technology in future 6G communications. Thanks to its high array gain, low cost, and low power consumption, RISs can improve spectral efficiency and reduce power consumption. The RISs widely studied in most existing works are usually passive RISs. https://techxplore.com/news/2023-05-ris-passive-prevail-6g.html Telecom Fri, 26 May 2023 14:43:56 EDT news604331034 Recently, a new technology named reconfigurable intelligent surface (RIS) has emerged as a potential candidate for the 6G network. An RIS is usually designed as a reflective array equipped with a large number of passive elements, each being able to reflect the incident signals passively with a controllable phase shift. https://techxplore.com/news/2023-05-reconfigurable-intelligent-surfaces-6g-fundamental.html Telecom Tue, 23 May 2023 15:54:27 EDT news604076064 Developers of the 5G mobile network can now get help from artificial intelligence (AI). A thesis from Umeå University shows new machine learning methods that provide faster troubleshooting and better understanding of the mobile network. https://techxplore.com/news/2023-05-ai-5g-network.html Telecom Tue, 23 May 2023 12:51:49 EDT news604065105 A new paper on wireless connectivity from the lab of Dinesh Bharadia, an affiliate of the UC San Diego Qualcomm Institute (QI) and faculty member with the Jacobs School of Engineering's Department of Electrical and Computer Engineering, introduces a new technique for increasing access to the 5G-and-beyond millimeter wave (mmWave) network. https://techxplore.com/news/2023-05-wireless-greater-5g-access.html Internet Thu, 18 May 2023 13:45:03 EDT news603636301 A group of researchers from the National Institute of Information and Communications Technology (NICT, Japan) and Sumitomo Electric Industries, Ltd. (SEI, Japan) in collaboration with the Eindhoven University of Technology, University of L'Aquila, and Macquarie University has developed a 19-core optical fiber with a standard cladding diameter (0.125 mm), which has the largest number of cores among the standard cladding diameter multi-core fibers, and has demonstrated large-capacity transmission at a data-rate of 1.7 petabits per second over a distance of 63.5 km. A randomly coupled multi-core fiber design was used to achieve high core density, as well as a multiple input multiple output (MIMO) digital signal processing to eliminate inter-core signal interference. https://techxplore.com/news/2023-05-world-standard-cladding-diameter-core.html Telecom Mon, 15 May 2023 09:33:04 EDT news603361982 On April 28, NASA and its partners achieved another major milestone in the future of space communications—achieving 200 gigabit per second (Gbps) throughput on a space-to-ground optical link between a satellite in orbit and Earth, the highest data rate ever achieved by optical communications technology. https://techxplore.com/news/2023-05-nasa-partners-fastest-space-to-ground-laser.html Telecom Fri, 12 May 2023 09:52:03 EDT news603103919 Researchers have developed an algorithm that can "eavesdrop" on any signal from a satellite and use it to locate any point on Earth, much like GPS. The study represents the first time an algorithm was able to exploit signals broadcast by multi-constellation low Earth orbit satellite (LEO) satellites, namely Starlink, OneWeb, Orbcomm and Iridium. https://techxplore.com/news/2023-05-algorithm-satellite-gps.html Telecom Fri, 05 May 2023 12:51:34 EDT news602509892 The recent leak of Pentagon documents included the suggestion that China is developing sophisticated cyber attacks for the purpose of disrupting military communication satellites. While this is unconfirmed, it is certainly possible, as many sovereign nations and private companies have considered how to protect from signal interference. https://techxplore.com/news/2023-04-pentagon-leaks-china-ways-satelliteshere.html Telecom Wed, 26 Apr 2023 12:33:04 EDT news601731181 Scientists are striving to develop ever-smaller Internet of Things devices, like sensors tinier than a fingertip that could make nearly any object trackable. These diminutive sensors have miniscule batteries which are often nearly impossible to replace, so engineers incorporate wake-up receivers that keep devices in low-power "sleep" mode when not in use, preserving battery life. https://techxplore.com/news/2023-04-miniscule-device-battery-life-tiny.html Electronics & Semiconductors Mon, 24 Apr 2023 12:52:50 EDT news601559563 A microsatellite for maritime communications developed by the Satellite Technology And Research Center (STAR) under the National University of Singapore's College of Design and Engineering (NUS CDE), and A*STAR's Institute for Infocomm Research (I2R), has been successfully launched from the Satish Dhawan Space Center in Sriharikotta, India, on Saturday, 22 April 2023 at 4:50pm (Singapore time). https://techxplore.com/news/2023-04-successful-lumelite-maritime-communications.html Telecom Mon, 24 Apr 2023 11:06:53 EDT news601553208 With the rapid development of modern wireless systems such as radar and communications, there is an urgent need for the integrated development of multi-functional RF antennas. Since weight, size, and space placement are at a premium for these systems, it is desirable to combine the functionality of multiple systems into a single shared-aperture antenna. https://techxplore.com/news/2023-04-k-ka-band-planar-shared-aperture-beam-scanning-array.html Telecom Fri, 21 Apr 2023 13:59:03 EDT news601304342 A long-form review titled "Full-spectrum Cell-free RAN for 6G Systems: System design, and Experimental Results" was published in Science China Information Sciences. This study was led by Prof. Wang Dongming and Prof. You Xiaohu from Southeast University, China along with other 16 experts and scholars from scientific research institutes, colleges, and companies. https://techxplore.com/news/2023-04-full-spectrum-cell-free-ran-6g-experimental.html Telecom Fri, 21 Apr 2023 13:52:02 EDT news601303921