Energy- and Cognitive-Radio-Aware Routing in Cognitive Radio Sensor Networks by Christian H. W. Oey, Ivan Christian, Sangman Moh

“…Cognitive radio sensor networks (CRSNs) are the next generation wireless sensor networks (WSNs) that mitigate overcrowded unlicensed spectrum bands by opportunistically using temporally unoccupied unlicensed and licensed spectrum bands. …”
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Intelligent Cognitive Radio Models for Enhancing Future Radio Astronomy Observations by Ayodele Abiola Periola, Olabisi Emmanuel Falowo

“…Radio astronomy organisations desire to optimise the terrestrial radio astronomy observations by mitigating against interference and enhancing angular resolution. …”
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Security in cognitive radio networks by Qing-qi PEI, Hong-ning LI, Hong-yang ZHAO, Nan LI, Ying MIN

“…Cognitive radio can obtain and access spectrum white holes without interfering primary users by sensing wireless environment to meet with the more spectrum requirement of users and improve spectrum utilization.However,it also brings new secure challenges that different from traditional wireless networks.Relying cognition cycle,the security issues in cognitive radio networks are presented from data channel,control channel and terminal equipment,then the existing defensive measures and propose the secure recommendations of cognitive radio networks are introduced.…”
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Remote Radio Frequency Sensing Based on 5G New Radio Positioning Reference Signals by Marcin Bednarz, Tomasz P. Zielinski

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A Dichotomy in the 1–24 GHz Parsec-scale Radio Spectra of Radio-quiet Quasars by Sina Chen, Ari Laor, Ehud Behar, Ranieri D. Baldi, Joseph D. Gelfand, Amy E. Kimball

“…We present the parsec-scale radio spectra of a representative sample of 13 Palomar–Green radio-quiet quasars, based on our new Very Long Baseline Array (VLBA) observations at 8.4 and 23.6 GHz and our earlier VLBA studies at 1.5 and 5.0 GHz. …”
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The Radio Fundamental Catalog. I. Astrometry by L. Y. Petrov, Y. Y. Kovalev

“…We present an all-sky catalog of absolute positions and estimates of correlated flux density of 21,942 compact radio sources determined from processing interferometric visibility data of virtually all very long baseline interferometry (VLBI) observing sessions at 2–23 GHz from 72 programs suitable for absolute astrometry collected for 30 yr. …”
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Late-time Radio Brightening and Emergence of a Radio Jet in the Changing-look AGN 1ES 1927+654 by Eileen T. Meyer, Sibasish Laha, Onic I. Shuvo, Agniva Roychowdhury, David A. Green, Lauren Rhodes, Amelia M. Hankla, Alexander Philippov, Rostom Mbarek, Ari laor, Mitchell C. Begelman, Dev R. Sadaula, Ritesh Ghosh, Gabriele Bruni, Francesca Panessa, Matteo Guainazzi, Ehud Behar, Megan Masterson, Haocheng Zhang, Xiaolong Yang, Mark A. Gurwell, Garrett K. Keating, David Williams-Baldwin, Justin D. Bray, Emmanuel K. Bempong-Manful, Nicholas Wrigley, Stefano Bianchi, Federica Ricci, Fabio La Franca, Erin Kara, Markos Georganopoulos, Samantha Oates, Matt Nicholl, Main Pal, S. Bradley Cenko

“…We present multifrequency (5–345 GHz) and multiresolution radio observations of 1ES 1927+654, widely considered one of the most unusual and extreme changing-look active galactic nuclei (CL-AGNs). …”
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Impacto de Intar Radio, la primera emisora de radio online creada en España con IA by Concepción Gómez López

“…Los resultados obtenidos indican que, aun estando presente en plataformas digitales (www.radio.es), Intar Radio no ofrece contenidos bajo demanda, lo cual limita su competitividad frente a la radio convencional. …”
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Observations of Radio Magnetars with the Deep Space Network by Aaron B. Pearlman, Walid A. Majid, Thomas A. Prince

“…We describe the DSN’s capabilities for carrying out these types of observations. We also present results from observations of three radio magnetars, PSR J1745–2900, PSR J1622–4950, and XTE J1810–197, and the transitional magnetar candidate, PSR J1119–6127, using the DSN radio telescopes near Canberra, Australia.…”
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Efficient Range Estimation in Beat Radio Interferometry by Bing Xu, Wangdong Qi, Li Wei, Su Zhang

“…The beat radio interferometry (BRI) is a novel ranging scheme that achieves high accuracy with low-cost devices. …”
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Echoes of the Life of Dora Pejačević’s Music on Croatian Radio by Tatjana Čunko

“…Radio Zagreb, today Croatian Radio (HR), began broadcasting on 15 May 1926, three years after the death of Dora Pejačević (Budapest, 10 September 1885 – Munich, 5 March 1923). …”
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Learning-Based Spectrum Sensing for Cognitive Radio Systems by Yasmin Hassan, Mohamed El-Tarhuni, Khaled Assaleh

“…This paper presents a novel pattern recognition approach to spectrum sensing in collaborative cognitive radio systems. …”
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Joint transceiver beamforming in MIMO cognitive radio network by Yan GUO, Fang-jun ZHU, Ning LI, Xiao-yun YUAN

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Analysis on the degree of freedom of interference alignment in cognitive radio by UNXian S, HAOXiao-hui Z

“…Then, the necessary IA conditions of secondary network were presented (good IA conditions of primary network have been proposed in previous research). …”
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Intent-driven 6G radio access network by Yangcheng ZHOU, Shi YAN, Mugen PENG

“…To satisfy the requirements of full-spectrum,full-scenario and full-service networking in the future Internet of things,the intent-driven radio access network (ID-RAN) is proposed for the 6G wireless communication system to decrease the networking costs and save the labor expense,while enhancing the intelligent capabilities of the radio access network.Based on the artificial intelligence,network function virtualization and software-defined networking,the intents from applications,performance requirements and networking status can be translated to the configuration and optimization strategies by the proposed ID-RAN,which enables 6G work efficiently,flexibility and elastically.The system architecture of ID-RAN was proposed firstly,and then the principles and solutions of key techniques were formulated,including intent translation,conflict resolution,configuration trigger,performance evaluation and optimization.Meanwhile,the open software-defined hardware platform for ID-RAN was built,and the corresponding performances aimed for 6G were presented.…”
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Statistical Analysis of Radio Propagation Channel in Ruins Environment by Jiao He, Er-Ping Li, Sai-Qiong Zhou, Kun Liao

“…This paper presents a spatial smoothing estimation via rotational invariance technique (SS-ESPRIT) for radio channel characterization of high density ruins. …”
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Application of Reinforcement Learning in Cognitive Radio Networks: Models and Algorithms by Kok-Lim Alvin Yau, Geong-Sen Poh, Su Fong Chien, Hasan A. A. Al-Rawi

“…Cognitive radio (CR) enables unlicensed users to exploit the underutilized spectrum in licensed spectrum whilst minimizing interference to licensed users. …”
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Cognitive radio frequency sense solution based on tracing location by WANG Yi-ming, ZHOU Liu-lei

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Research on Basic Theory and Key Technology of Cognitive Radio Network by Ping Zhang, Jianwu Li, Zhiyong Feng, Qixun Zhang

“…Cognitive radio network（CRN）is a cognitive process of network，which makes planning，decision and response for network state through learning and analysis of the network environment.CRN is one of the effective ways to solve the limited network capacity，and to satisfy the national strategic demand on the frequency spectrum efficient-utilization and the integration of heterogeneous networks.As the key technology of 5G，CRN indicates the direction for the future development of wireless communication network.The system architecture for cognitive radio networks，the basic theory research，the key technologies of implementation were introduced，and the demonstration platform of CRN was presented.…”
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Measurement of Coherence Bandwidth in UHF Radio Channels for Narrowband Networks by Jaroslaw Sadowski

“…This paper presents results of investigation on the coherence bandwidth of narrowband radio channels in 430 MHz band. …”
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