Mixed-Signal Parallel Compressive Spectrum Sensing for Cognitive Radios by Zhuizhuan Yu, Xi Chen, Sebastian Hoyos, Brian M. Sadler, Jingxuan Gong, Chengliang Qian

“…Wideband spectrum sensing for cognitive radios requires very demanding analog-to-digital conversion (ADC) speed and dynamic range. …”
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A Discourse Analysis of Radio Call ins In Runyankore-Rukiga. by Niwamanya, Diana

“…This study conducted a discourse analysis of radio call-ins in Runyakore Rukiga transcripts to investigate the use of discourse markers to analyze conversation structures and compare them in communication. …”
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RADIO PLAYS AS A SPECIAL GENRE IN THE WORK OF E. JELINEK by Tatiana V. Akasheva, Alexandra D. Zharkova

“…Since the 70s and up to the present, she has been actively criticizing the values existing in society on the radio, writing radio plays, in which she expresses her active civic position. …”
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A Radio-interferometric Imaging Method Based on the Wavelet Tight Frame by Xiaocheng Yang, Xiang You, Lin Wu, Jingye Yan, Feng Liu, Mingfeng Jiang, Junbao Zheng

“…In this paper, we present a novel radio-interferometric imaging method based on the wavelet tight frame aimed at efficiently obtaining an accurate solution. …”
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Analysis of radio propagation over rough sea surface with parabolic equation by GUO Jian-yan1, WANG Jian-ying2, LONG Yun-liang2

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Standardization of 5G new radio technology oriented Polar code by Desheng XIE, Rong CHAI, Leilei HUANG, Qianbin CHEN

“…Amore efficient new channel coding scheme was required for NRby the service features and capability indices of 5G.Due to its excellent performance,Polar code was specified as the control channel coding scheme for 5G enhancedmobile broadband(eMBB)scenario.An overview of Polar code was presented and themain existing research issues of the standardization for new radio(NR)technology oriented Polar code,including code construction,sequence design,rate-matching and channel interleaving,etc,were elaborated.Then some specific analysis and comparisons of the Polar code schemes which were proposed by 3GPPmember institutes in RAN1 conferences recently were presented.Finally,a summary of the standardization works of Polar code was given on the basis of the above discussions.…”
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A Visibility-based Angular Bispectrum Estimator for Radio-interferometric Data by Sukhdeep Singh Gill, Somnath Bharadwaj, Sk. Saiyad Ali, Khandakar Md Asif Elahi

“…Considering radio-interferometric observations, we present a fast and efficient estimator to compute the binned angular bispectrum (ABS) from gridded visibility data. …”
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Effect of Parasitic Element on 408 MHz Antenna for Radio Astronomy Application by Radial Anwar, Mohammad Tariqul Islam, Norbahiah Misran, Geri Gopir, Baharudin Yatim, Mhd Fairos Asillam

“…Antenna is one of the important subsystem components in a radio telescope system. In this paper, analysis on the effect of parasitic element on 408 MHz antenna in a radio telescope system is presented. …”
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Characterization of Narrow Band UHF Radio Propagation Channels in Tunnel Environments by Zhang yaoping Zheng guoxin Zhang wenmei Sheng jianhuan

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A Brief Analysis of Radio Propagation Models for Long Term Evolution by Mingfeng Zhao

“…Lastly, a good propagation model choice strategy for the TD-LTE in dense urban scene was presented.…”
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Multichannel Broadcast Based on Home Channel for Cognitive Radio Sensor Networks by Fanzi Zeng, Yuting Tang, Jianjie Pu

“…Considering the limited resources and the dynamic spectrum distribution in the cognitive radio sensor networks (CRSN), a half-duplex Multichannel broadcast protocol for CRSN is presented based on the home channel. …”
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Covariance Blind Detection Method Based on Eigenvector in Cognitive Radio Network by Yingxue Li, Jing Lei, Shiyuan Zhong, Chunming Huang, Chao Huang

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Fog computing based radio access networks：architecture，principles and challenges by Bonan YIN, Yuan AI, Mugen PENG

“…To reduce the burden of fronthaul link，avoid large-scale wireless signal processing in centralized baseband unit（BBU）pool，and take full advantage of processing and storage capabilities in edge devices，a fog computing based radio access network（F-RAN）was presented as an evolution form of heterogeneous cloud radio access networks.The core idea of F-RAN was to take full advantage of processing and storage capabilities in edge devices which could achieve the local distributed content delivery，the local distributed collaboration radio signal processing and the local distributed cooperative radio resource management functions.System architectures of F-RAN，promising key techniques，and researching open issues of F-RAN were discussed in detail.…”
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Challenges for beyond 5G:ultra-densification of radio access network by Fumiyuki Adachi, Ryo Takahashi, Hidenori Matsuo

“…Ultra-densification of radio access network (RAN) is a key to efficiently support the exponentially growing mobile data traffic in 5G era.Furthermore,extremely high frequency band like mmWave band was utilized to solve the bandwidth shortage problem.However,untra-dense reusing the same radio resource produced severe interference.And the mmWave link was very harsh due to frequent blockage by obstacles.Therefore a new RAN architecture needed to be introduced to realize ultra-reliable communications in such a severe radio propagation environment.An architecture of distributed MIMO based RAN was presented.Then,enhanced interference coordination (eIC) was described.Finally,the effectiveness of distributed MIMO based RAN with eIC by computer simulation was showed.…”
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Performance analysis and re-modeling of secondary users in cognitive radio system by Wei LIN, Yu FU, Qin-yu ZHANG, Ye WANG, Sheng WANG

“…A number of errors in the past Markov model and theoretical analysis were discussed in spectrum access based on cognitive radio network (CRN).To imitate the behav ary user (PU) and secondary user (SU) factually,new models for access strategy were presented.The performance of CRN based on different access strategies were reappraised and compared by using matrix geometric theory and event scheduling of discrete events system simulation.Theoretical analysis results and simulation experiments were tally close,which confirms the reliability of proposed models.The access strategies with handoff and channel reservation efficiently decrease the call dropping probability,as while as,increase the blocking probability.And the thought for CRN can reach the maximum in the latter with the optimum number of reserved channels.…”
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Resource Allocation with MAC Layer Node Cooperation in Cognitive Radio Networks by Andreas Merentitis, Dionysia Triantafyllopoulou

“…An algorithm for cooperative Dynamic Spectrum Access in Cognitive Radio networks is presented. The proposed algorithm utilizes Medium Access Control layer mechanisms for message exchange between secondary nodes that operate in license exempt spectrum bands, in order to achieve interference mitigation. …”
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Routing approach based on local topology control in cognitive radio networks by Shu-qi LIU, Yi-ming WANG, Cui-mei CUI

“…An approach of topology control and routing was proposed according to the characteristics of cogni ive radio networks,which considered multi factors optimization with fusion of primary users and secondary users.And the ap-proach took the spectrum utilization of primary users the interference from secondary users to primary users into ac-count.Then a joint link cost was defined combining the predicted cognitive link stability with the link power consump-tion.Furthermore,the local cognitive topology control routing(LCTCR)algorithm with minimizing the link cost was presented,which was used to optimize the network topology.Meanwhile,the network path was selected according to the optimized network topology.Theoretical analysis and simulation experiments show that the link power consumption and the link stability are also important parameters and need to be jointly optimized when selecting the network path.Only by doing so can it guarantee that the selected path is optimal.…”
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Spectrum sharing schemes in cognitive radio networks based on collusion formation by Xue-song TAN, Chao LIN, Wei GUO

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Wirelessly Pattern Reconfigurable Yagi Antenna Based on Radio Frequency Identification by Chuankui Shen, Zhengxing Wang, Liekun Yang, Fengcheng Mei, Terry Tao Ye

“…This paper presents, for the first time, the implementation of a pattern reconfigurable Yagi-Uda antenna utilizing radio frequency identification (RFID) technology for remote pattern control. …”
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Optimal sensing performance for cooperative and non-cooperative cognitive radio networks by Waqas Khalid, Heejung Yu

“…Spectrum sensing has gained new aspects with the advent of cognitive radio and opportunistic spectrum access techniques. …”
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