Some people even think that logarithmic values more related to the era of slide rules than to the modern digital world. Looks convenient? Yes, but not to everyone! Actually, all people who are not mathematically or technically inclined can be easily confused when dealing with quantities expressed in logarithmic units like decibels. At the same time, the sound power of quiet conversation is 0.000000001 W or 30 dB SWL. For example, the sound power of a Saturn V rocket is 100,000,000 W or 200 dB SWL (dB referenced to the sound power level 10⁻¹² W, it is described below). Logarithmic units allow representing a very large range of ratios by a small convenient number similar to scientific notation. Co-authors include Professor Chung-Tse Michael Wu in the Department of Electrical and Computer Engineering, Professor Ruo-Qian (Roger) Wang in the Department of Civil and Environmental Engineering and Joseph Brodie, director of atmospheric research in the Rutgers Center for Ocean Observing Leadership.The sound power of a Saturn V rocket is 100,000,000 W or 200 dB SWLĪ logarithmic scale is often used when there is a large range of quantities like sound pressure, earthquake strength, light intensity, various frequency-dependent values like musical intervals, in antenna engineering, electronics, acoustics, RF engineering. The lead author is Mohammad Yousefvand, a Rutgers electrical engineering doctoral student. "One of our takeaways is that if we want leakage to be at levels preferred by the 5G community, we need to work on more detailed models as well as antenna technology, dynamic reallocation of spectrum resources and improved weather forecasting algorithms that can take into account 5G leakage." "It can be argued that the magnitude of error found in our study is insignificant or significant, depending on whether you represent the 5G community or the meteorological community, respectively," Mandayam said. Meteorologists rely on satellites for the data needed to forecast weather.īased on modeling, 5G leakage power of -15 to -20 decibel Watts (a decibel Watt is a unit of power that describes the strength of radio waves) affected the accuracy of forecasting of precipitation (by up to 0.9 millimeters) during the tornado outbreak and temperatures near ground level (by up to 2.34 degrees Fahrenheit). The signals from the 5G frequency bands potentially could leak into the band used by weather sensors on satellites that measure the amount of water vapor in the atmosphere and affect weather forecasting and predictions. The Rutgers study used computer modeling to examine the impact of 5G "leakage" - unintended radiation from a transmitter into an adjacent frequency band or channel - on forecasting the deadly 2008 Super Tuesday Tornado Outbreak in the South and Midwest. It has faster connection times, increases the number of devices that can connect to a network and will be more widely available over the next two to three years, according to IEEE. This technology will revolutionize internet communication and telecommunication. Fifth-generation cellular wireless technology (5G) stems from new, smarter ways to use the higher (mmWave) frequencies for mobile communications. The peer-reviewed study was published this month at the 2020 IEEE 5G World Forum, sponsored by the Institute of Electrical and Electronics Engineers. Mandayam, a Distinguished Professor at the Wireless Information Network Laboratory (WINLAB), who also chairs the Department of Electrical and Computer Engineering in the School of Engineering at Rutgers University-New Brunswick. "Our study - the first of its kind that quantifies the effect of 5G on weather prediction error - suggests that there is an impact on the accuracy of weather forecasts," said senior author Narayan B.
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