OPTIMIZING ENERGY CONSUMPTION FOR WIRELESS SENSOR NETWORKS by Lại Thị Nhung, Nguyễn Thị Hòa, Lê Đăng Nguyên, Nguyễn Gia Như, Đặng Thanh Hải

“…The information collected by the sensors will be transmitted to the base station by radio waves. From here, the data is analyzed and processed to make decisions. …”
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Predicting low ionospheric parameters and low frequency sky wave propagation strength using machine learning by Jian Wang, Chengsong Duan, Qiao Yu, Cheng Yang

“…Abstract Studying the propagation prediction of low-frequency (LF) radio waves is very significant for supporting applications in fixed and mobile long-distance communication, remote navigation, and timing service. …”
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Wind Turbine Clutter Mitigation in Coastal UHF Radar by Jing Yang, Chao Pan, Caijun Wang, Dapeng Jiang, Biyang Wen

“…The size of a wind turbine is much larger than the wavelength of radio waves at UHF band, which results in large radar cross section. …”
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Radar Characterization of Salt Layers in Europa's Ice Shell as a Window Into Critical Ice‐Ocean Exchange Processes by N. S. Wolfenbarger, D. D. Blankenship, D. A. Young, K. M. Scanlan, C. J. Chivers, D. Findlay, G. B. Steinbrügge, K. Chan, C. Grima, K. M. Soderlund, D. M. Schroeder

“…Both missions are equipped with ice‐penetrating radars which will transmit radio waves into the subsurface, recording reflections from interfaces defined by contrasts in ice shell dielectric properties. …”
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Micro-Trivium: A lightweight algorithm designed for radio frequency identification systems by Shiyong Zhang, Gongliang Chen

“…Radio frequency identification technology transmits an object’s identification as a unique serial number—using radio waves as the transmission carrier—and is becoming an important building block for distributed sensor networks. …”
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DESIGN ANALYSIS OF A LOW-COST PARABOLIC ANTENNA FOR DEVELOPING NATION by FRANK ONAIFO, ALEXANDER AKPOFURE OKANDEJI, FISAYO IDOWU, OMOWUMMI GRACE OLASUNKANMI, OLAWALE OLALUWOYE, OLAOLU FOLORUNSHO

“…Metallic parabolic antenna contributes more to signal loss by reflecting radio waves. The Parabolic antenna is designed to receive microwave signals in the K-band with the down converter converting it to very high frequency (VHF) and ultra-high frequency (UHF) employing the super-heterodyning principle. …”
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Deep learning–based resource allocation for secure transmission in a non-orthogonal multiple access network by Miao Zhang, Yao Zhang, Qian Cen, Shixun Wu

“…In addition, there exists an eavesdropper that intends to decode the confidential information due to the broadcast nature of radio waves. Hence, we formulate the optimization problem as a secrecy rate maximization problem. …”
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Pulsar Scattering as a Probe for Structures in the Interstellar Medium by Qiuyi He, Xun Shi, Guangxing Li

“…Due to the inhomogeneity of electron number density, radio waves emitted by pulsars undergo scattering as they pass through the interstellar medium (ISM). …”
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Characterizing Auroral‐Zone Absorption Based on Global Kp and Regional Geomagnetic Hourly Range Indices by R. A. D. Fiori, L. Trichtchenko, C. Balch, E. Spanswick, S. Groleau

“…Abstract Increased ionization in the auroral oval leads to the absorption of high‐frequency radio waves in the auroral zone, or auroral absorption. …”
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Monitoring of Ionospheric Variability Using the Low lAtitude Long Range Ionospheric raDar (LARID): Capabilities, Advantages and Limitations by Wenjie Sun, Guozhu Li, Baiqi Ning, Lianhuan Hu, Yuichi Otsuka, Guofeng Dai, Haiyong Xie, Xiukuan Zhao, Yi Li, Atsuki Shinbori, Michi Nishioka, Septi Perwitasari, Chi Wang

“…The results show that the LARID can detect various ionospheric variations at low latitudes, including (a) sequentially generated equatorial plasma bubbles over a longitude span of ∼80°, (b) near‐range E region irregularities drifting across more than 1,000 km, (c) ionospheric background information retrieved from ground scatters, (d) traveling ionospheric disturbances, and (e) sporadic E structures reflecting HF radio waves at low elevation angles. It is demonstrated that the LARID provides an important tool for investigating different types of ionospheric variability over a broad region, especially over the Indian Ocean and west Pacific, and will contribute significantly to the regional ionospheric weather forecasting.…”
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Anomalous Long‐Distance Propagation of ILS LOC Signals by the Es Layer and Its Impact on Aviation Receivers by S. Saito, K. Hosokawa, J. Sakai, I. Tomizawa

“…Abstract Anomalous long‐distance propagation of Very High Frequency radio waves of aeronautical navigation systems was investigated by an airborne Instrument Landing System (ILS) localizer (ILS LOC) receiver installed on the ground at Kure, Japan (34.245°N, 132.528°E). …”
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Télémonitorage des grandes fonctions physiologiques chez les primates vigiles by Guy Germain

“…They also stem from the need to control in the laboratory, experimental treatments with a minimal disturbance of their social behavior. Radio waves are an excellent transmission signal to monitor the animals because they can spread information rapidly and over long distances through the air. …”
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Strong turbulent flow in the subauroral region in the Antarctic can deteriorate satellite-based navigation signals by D. S. Kotova, A. A. Sinevich, A. A. Chernyshov, D. V. Chugunin, Y. Jin, W. J. Miloch

“…Such high velocities and structured plasma can affect trans-ionospheric radio waves and lead to scintillations in the received signal. …”
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Lost in Broadcasting: League of Nations, International Broadcasting and Swiss Neutrality by A. S. Khodnev

“…Ultimately, in 1947, the LN's liquidation commission transferred the remaining assets of Radio-Nations and its radio waves to the United Nations.…”
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