Showing 2,041 - 2,060 results of 3,139 for search '"wireless"', query time: 0.08s Refine Results
  1. 2041

    Low-Interference Dual Resonant Antenna Configurations for Multistandard Multifunction Handsets and Portable Computers by Mohamed Sanad, Noha Hassan

    Published 2012-01-01
    “…Only two wideband resonant antennas can cover most of the important wireless applications in portable communication equipment. …”
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    Article
  2. 2042

    Two-Stage Over-the-Air (OTA) Test Method for LTE MIMO Device Performance Evaluation by Ya Jing, Xu Zhao, Hongwei Kong, Steve Duffy, Moray Rumney

    Published 2012-01-01
    “…With MIMO technology being adopted by the wireless communication standards LTE and HSPA+, MIMO OTA research has attracted wide interest from both industry and academia. …”
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    Article
  3. 2043

    MODELING AND SIMULATION OF COAL-ROCK RECOGNITION SYSTEM OF SHEARER BASED ON CYBER-PHYSICAL SYSTEM (MT) by ZHAO LiJuan, SI HuanHuan, SHI Lei, JIN Xin, ZHANG MeiChen

    Published 2022-01-01
    “…A hybrid system simulation design was carried out for the system, a wireless sensor network system model based on Ptolemy II was constructed, and the design and modeling of the wireless sensor node was completed. …”
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    Article
  4. 2044

    Web Real-Time Communications-Based Unmanned-Aerial-Vehicle-Borne Internet of Things and Stringent Time Sensitivity: A Case Study by Agnieszka Chodorek, Robert Ryszard Chodorek

    Published 2025-01-01
    “…The currently observed development of time-sensitive applications also affects wireless communication with the IoT carried by UAVs. …”
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    Article
  5. 2045

    Detection of Illegal Movement in Radioactive Material Transportation Security Systems by Tiejun Zeng, Xiaohua Yang, Yaping Wan, Panpan Jiang, Liu Zhenghai

    Published 2021-01-01
    “…The wireless signal strength data is filtered and converted into distance data. …”
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    Article
  6. 2046

    5G nomadic deployment proposal of base station integrated with cloud and service by Furong XU, Hang CUI, Tianyi YU, Long ZHANG, Jinxia CHENG, Feng XING, Wuneng GUAN, Jing LIU, Wei DENG, Haiyu DING

    Published 2022-05-01
    “…Emergency scenarios such as floods, mobile scenarios such as open-pit mines, temporary coverage scenarios such as touring competitions have agile 5G network deployment and flexible local application deployment requirements.Existing solutions, such as emergency communication vehicles, drone communications, have three major problems, including inflexible backhaul, unsatisfied service, and incomplete scenarios.In response to the above-mentioned scenario requirements and problems, an innovative nomadic deployment proposal of base station integrated with cloud and service was proposed.It contained smart-simplified wireless coverage unit, smart-simplified backhaul unit, smart-simplified computing unit, and smart-simplified supporting unit.Smart-simplified wireless coverage unit and smart-simplified backhaul unit builded a ubiquitous network.Where there was demand, there was 5G.Smart-simplified computing unit builded a ubiquitous cloud.Where there was base station, there was cloud.Smart-simplified supporting unit realized the flexible movement of 5G network.The 5G nomadic base station integrated cloud and service to achieve flexible mobile 5G network and cloud, which could meet the needs of emergency rescue scenarios, mobile scenarios, and temporary industrial coverage scenarios.…”
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    Article
  7. 2047

    Optimization and Modeling of Optical Emission Spatial Coverage from Underwater Multi-Faceted Optical Base Stations by Junjie Shi, Chunbo Ma, Xu Tian, Hanjun Guo, Jun Ao

    Published 2024-12-01
    “…Compared with point-to-point wireless optical communication systems, multi-faceted Optical Base Stations (OBSs) offer the advantages of supporting multi-user access and achieving omnidirectional dynamic communication. …”
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    Article
  8. 2048

    Markov Model-Based Energy Efficiency Spectrum Sensing in Cognitive Radio Sensor Networks by Yan Jiao, Inwhee Joe

    Published 2016-01-01
    “…Cognitive Radio Sensor Network (CRSN), incorporating cognitive radio capability in wireless sensor networks, is a new paradigm of the next-generation sensor network. …”
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    Article
  9. 2049

    Delay optimal opportunistic pipeline routing scheme for cognitive radio sensor networks by Anfeng Liu, Wei Chen, Xiao Liu

    Published 2018-04-01
    “…In order to solve the problem of spectrum scarcity in wireless sensor networks, cognitive radio technology can be introduced into wireless sensor networks, giving rising to cognitive radio sensor networks. …”
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    Article
  10. 2050

    Controlling Conical Beam Carrying Orbital Angular Momentum with Transmissive Metasurface by Jun Sun, Ke Chen, Kai Qu, Junming Zhao, Tian Jiang, Yijun Feng

    Published 2021-01-01
    “…Conical beams have potential uses in wireless and satellite-based communication. In this study, we propose a method using a transmissive metasurface to achieve full control of the diverging effect of orbital angular momentum (OAM) modes to form the desired conical beam. …”
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  11. 2051
  12. 2052

    Investigation of electromagnetic wave propagation characteristics across various frequencies in porous media of goaf. by Qingsong Zhang, Weikang Zhao, Hui Zhuo, Long Lin, Zuojian Li

    Published 2024-01-01
    “…The reliable long-distance transmission of electromagnetic wave signals within goaf is fundamental for the implementation of wireless monitoring and early warning systems for goaf-related disasters. …”
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    Article
  13. 2053

    Mathematical Modeling Methods and Their Application in the Analysis of Complex Signal Systems by Yanjun Li

    Published 2022-01-01
    “…Then, the mathematical model optimization of complex wireless systems and intelligent transportation networks is quantitatively evaluated. …”
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    Article
  14. 2054

    Penerapan Mekanisme Komunikasi Multi-hop pada Bluetooth Low Energy by Agung Setia Budi, Muhammad Hanif Azhar Efendi, Adhitya Bhawiyuga, Mochammad Hannats Hanafi Ichsan

    Published 2022-02-01
    “… Seiring dengan berjalannya waktu, perkembangan teknologi akan semakin pesat, begitu pun teknologi dalam bidang wireless communication atau komunikasi tanpa kabel. …”
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    Article
  15. 2055

    A Novel Pixel-Based Reconfigurable Antenna Applied in Fluid Antenna Systems With High Switching Speed by Jichen Zhang, Junhui Rao, Zan Li, Zhaoyang Ming, Chi-Yuk Chiu, Kai-Kit Wong, Kin-Fai Tong, Ross Murch

    Published 2025-01-01
    “…Fluid Antenna Systems (FASs) have recently been proposed for enhancing the performance of wireless communication. FAS have previously exploited mechanical movement or liquids to perform the required adaptation to the wireless environment. …”
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    Article
  16. 2056

    Digital Phase-Locked Loops: Exploring Different Boundaries by Yuncheng Zhang, Dingxin Xu, Kenichi Okada

    Published 2024-01-01
    “…This article examines the research area of digital phase-locked loops (DPLLs), a critical component in modern electronic systems, from wireless communication devices to RADAR systems and digital processors. …”
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  17. 2057

    Measurement and modeling of indoor off-body channel in the 9.5~10.5 GHz band by Shanhu HUANG, Jun SUN, Haofei CHANG, Wenjun LV, Qin YANG

    Published 2022-06-01
    “…In order to explore the wireless propagation characteristics of high-frequency indoor off-body channel, off-body channel measurements were carried out on multiple typical indoor scenes in the 9.5~10.5 GHz frequency band.In terms of large-scale fading, through studying the path loss, it is found that the human body occlusion factor has a sine function relationship with the rotation angle, and a negative exponential relationship with the distance between the receiver and transmitter.Therefore, a new type of off-body channel loss model related to distance and angle was established, and the accuracy and applicability of the new model was proved based on the shadow fading.In terms of small-scale fading, by analyzing the linear correlation between path loss and root mean square (RMS) delay spread, a new type of RMS delay spreading model related to distance and angle was obtained.It proves that the greater the distance between the antenna at the transceiver end and the occlusion factor caused by the rotation of the human body, the more severe the path loss and multipath fading.The new channel model can be used to design the off-body link of the internet of things environment body area network (BAN), providing a theoretical and practical basis for the future design of indoor wireless communication systems.…”
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  18. 2058

    The Exploration of Network Coding in IEEE 802.15.4 Networks by Deze Zeng, Song Guo, Victor Leung, Jiankun Hu

    Published 2011-01-01
    “…Wireless personal area networks (WPANs) are getting popular in a variety of fields such as smart home, office automation, and e-healthcare. …”
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  19. 2059

    Cooperative secure transmission against collusive eavesdroppers in Internet of Things by Xin Fan, Yan Huo

    Published 2020-06-01
    “…Focusing on physical layer security in wireless Internet of Things network communication, a series of security methods have been widely studied. …”
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  20. 2060

    Machine Learning-Driven Adaptive Modulation for VLC-Enabled Medical Body Sensor Networks by Reza Bayat Rizi, Amir R. Forouzan, Farshad Miramirkhani, Mohamad F. Sabahi

    Published 2024-11-01
    “…Visible Light Communication, a key optical wireless technology, offers reliable, high-bandwidth, and secure communication, making it a promising soloution for a variety of applications. …”
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