With the rollout of fifth-generation (5G) telecommunications networks and 6G looming on the horizon, the demand for advanced materials that can handle high-frequency signals is rising rapidly. These systems use electromagnetic waves ranging from tens to hundreds of gigahertz (GHz), where signals are highly sensitive to transmission loss, interference, and...
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The Federal Communications Commission voted to end discounts for library Wi-Fi hotspot lending and school bus connectivity programs on Tuesday, drawing criticism from lawmakers and librarians who say the moves will make it more difficult for people who are low-income or live in rural areas to access the internet....
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5G has been part of our lives and the market for several years, while the industry is already looking ahead to its successor, 6G. But can we say it is fully implemented?...
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In a world first, researchers at Nagoya University in Japan have successfully developed a resonant tunnel diode (RTD) that operates at room temperature made entirely from Group IV semiconductor materials....
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Optical signal transmission can be significantly improved by limiting the wavelength of transmitted signals. Fiber Bragg grating (FBG) is a technique widely used in optical communication, sensing, and laser technologies for selectively blocking certain wavelengths of light. In optical fibers, FBG functions as a band-rejection filter that reflects specific light...
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Apple's unveiling of the latest batch of iPhones yesterday may have grabbed much of the attention, but the satellite messaging added to the Apple Watch Ultra 3 is an engineering marvel, says a Northeastern University expert....
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A ship likely cut cables in the Red Sea that disrupted internet access in Africa, Asia and the Middle East, experts said Tuesday, showing the lines' vulnerability over a year after another incident severed them....
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Elon Musk's SpaceX has reached a deal worth about $17 billion with EchoStar for spectrum licenses that it will use to beef up its Starlink satellite network....
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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....
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Researchers at Skoltech have presented new generalized LDPC codes (Generalized Low-Density Parity-Check Codes, GLDPC)—a practical solution that operates faster than modern solutions from the 5G standard while maintaining the original reliability of data transmission. Such codes are particularly important for designing next-generation wireless systems, where minimizing latency and ensuring reliable...
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For the first time, Korean researchers have successfully demonstrated a 6G hyper-space communication technology that integrates terrestrial and satellite networks. As a core infrastructure for the future 6G era, it is being evaluated as a green light for securing the lead in 6G international standardization....
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The U.S. Naval Research Laboratory in conjunction with the Marine Corps Expeditionary Energy Office (E2O); the Operational Energy Capability Improvement Fund with the Office of the Assistant Secretary of Defense for Energy, Installations, and Environment; Aerostar; and Lockheed Martin conducted a technical demonstration held at Outlying Landing Field Seagle in...
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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%....
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In recent decades, communication technology has advanced at unprecedented speed. A key breakthrough is semantic communications—a shift from transmitting raw data to conveying semantic meaning. For example, in image transmission, meaning takes priority over pixel-level accuracy. By integrating user tasks into the communication process, semantic communications improve both efficiency and...
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