Results 21 to 30 of about 2,658,834 (309)
Design and characteristic analysis of hybrid OFD–LFM–PC waveforms in the MIMO radar
The Journal of Engineering, 2019 In this study, a new set of hybrid orthogonal frequency division–linear frequency modulation–phase coded (OFD–LFM–PC) waveforms are proposed to improve the detection performance of multiple-input-multiple-output (MIMO) radars.
Sheng Hong +4 more
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Sensors, 2023 Emergency event monitoring is a hot topic in wireless sensor networks (WSNs). Benefiting from the progress of Micro-Electro-Mechanical System (MEMS) technology, it is possible to process emergency events locally by using the computing capacities of ...
Zhihui Guo, Hongbin Chen, Shichao Li
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Cognitive radio realities [PDF]
Wireless Communications and Mobile Computing, 2007 AbstractA cognitive radio (CR) is a transceiver that is aware, adaptive, and capable of learning. It may be visualized and realized as an intelligent software package (cognitive engine) controlling a software defined radio platform. The cognitive engine executes a set of nested loops constituting a cognition cycle, drawing on experience and stored ...
Bin Le +2 more
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Wireless Sensor Networks for Noise Measurement and Acoustic Event Recognitions in Urban Environments
Sensors, 2020 Nowadays, urban noise emerges as a distinct threat to people’s physiological and psychological health. Previous works mainly focus on the measurement and mapping of the noise by using Wireless Acoustic Sensor Networks (WASNs) and further propose some ...
Liyan Luo +5 more
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Identification of Orbital Angular Momentum by Support Vector Machine in Ocean Turbulence
Journal of Marine Science and Engineering, 2022 With the advancement of underwater communication technology, the traditional modulation dimension has been introduced, developed and utilized. In addition, orbital angular momentum (OAM) is utilized as the modulation dimension for optical underwater ...
Xiaoji Li, Jiemei Huang, Leiming Sun
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Intelligent Reflecting Surface-Assisted Cognitive Radio System [PDF]
IEEE Transactions on Communications, 2019 Cognitive radio (CR) is an effective solution to improve the spectral efficiency (SE) of wireless communications by allowing the secondary users (SUs) to share spectrum with primary users (PUs). Meanwhile, intelligent reflecting surface (IRS), also known
Jie Yuan +4 more
semanticscholar +1 more source
5G Technology: Towards Dynamic Spectrum Sharing Using Cognitive Radio Networks
IEEE Access, 2020 The explosive popularity of small-cell and Internet of Everything devices has tremendously increased traffic loads. This increase has revolutionised the current network into 5G technology, which demands increased capacity, high data rate and ultra-low ...
Wan Siti Halimatul Munirah Wan Ahmad +6 more
semanticscholar +1 more source
Outage probability analysis of vehicular communication system with two-way AF cooperation
Dianzi Jishu Yingyong, 2018 In vehicular communication system, two-way cooperative communication can improve system performance. However, vehicle mobile communication will cause the two-way link correlation and thus reduce the system outage performance.
Lin Xiaoyu, Qiu Bin, Xiao Hailin
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Photonics, 2023 With the rapid development of the underwater Internet of Things (IoT), the number of underwater communication nodes is rapidly increasing. The access capacity of a traditional multi-antenna communication system is limited by the number of transmitting ...
Yanlong Li +5 more
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Robust beamforming in cognitive radio [PDF]
IEEE Transactions on Wireless Communications, 2009 In cognitive radio, it is crucial to control the interference from secondary users (SUs) to primary users (PUs). This paper studies the use of transmit beamforming in the cognitive secondary network for enhancing the performance of a SU while controlling the interference to the PUs.
Wong, KK, Zheng, G, Ng, TS, Ma, S
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