Showing 201 - 220 results of 369 for search '"wireless communications"', query time: 0.06s Refine Results
  1. 201

    A Spectrum Sensing Method Based on Signal Feature and Clustering Algorithm in Cognitive Wireless Multimedia Sensor Networks by Yongwei Zhang, Pin Wan, Shunchao Zhang, Yonghua Wang, Nan Li

    Published 2017-01-01
    “…Firstly, the wireless communication signal features are obtained according to the sampling signal covariance matrix. …”
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    Article
  2. 202

    Distributed Sensor Network-Based Virtual FDR System by Kwang-Ho Seok, Junho Ko, Chul-Won Park, Chul-Hwan Kim, Yoon Sang Kim

    Published 2013-11-01
    “…The proposed application is a virtual frequency disturbance recorder (FDR) system that estimates the frequency of a power grid using the data from a modeled grid and sends the information to the server for monitoring via wireless communication. To verify the validity of the proposed application, we conducted experiments using actual system data. …”
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  3. 203
  4. 204

    CPW-Fed Slot Antenna for Wideband Applications by T. Shanmuganantham, K. Balamanikandan, S. Raghavan

    Published 2008-01-01
    “…This antenna can be part of various wireless communication systems.…”
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    Article
  5. 205

    On the Bivariate Nakagami-Lognormal Distribution and Its Correlation Properties by Juan Reig, Lorenzo Rubio, Vicent M. Rodrigo-Peñarrocha

    Published 2014-01-01
    “…It is shown that the bias and the standard deviation of this sample correlation coefficient are substantially high for large shadowing standard deviations found in wireless communication measurements, even if the number of observations is considerable.…”
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    Article
  6. 206

    Advances in the Statistical Characterization of Fading: From 2005 to Present by José F. Paris

    Published 2014-01-01
    “…This review paper presents some of the most significant advances in statistical characterization of wireless communication fading. We will focus on the fundamental statistical characterizations of the fading distributions in terms of the probability density function (PDF), the cumulative density function (CDF), and the moment generating function (MGF). …”
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  7. 207

    Irradiance Scintillation Index for a Gaussian Beam Based on the Generalized Modified Atmospheric Spectrum with Aperture Averaged by Chao Gao, Yang Li, Yiming Li, Xiaofeng Li

    Published 2016-01-01
    “…This paper also examines the effects of the irradiance scintillation on the performance of the point-to-point optical wireless communication system with intensity modulation/direct detection scheme.…”
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  8. 208

    Fabrication of CPW-Fed Fractal Antenna for UWB Applications with Omni-Directional Patterns by Tohid Sedghi, Mahdi Jalali, Tohid Aribi

    Published 2014-01-01
    “…The characteristics of the proposed antenna are suitable for UWB wireless communication requiring low profile antennas.…”
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    Article
  9. 209

    Robust Distributed Reprogramming Protocol of Wireless Sensor Networks for Healthcare Systems by Kuo-Yu Tsai

    Published 2015-11-01
    “…With the development of the wireless communication technologies, the wireless sensor networks (WSNs for short) are considered as one of the key research areas in healthcare systems. …”
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    Article
  10. 210

    A Compact Quasi-Yagi Antenna with High Gain by Employing the Bent Arms and Split-Ring Resonators by Wen-Ying Zhou, Zhong-Lei Mei, Mai Lu

    Published 2021-01-01
    “…The proposed quasi-Yagi antenna has an adjustable compact structure and low frequency offset and could be used in the precise point-to-point wireless communication environment.…”
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    Article
  11. 211

    A Miniaturized Planar Monopole Antenna Based on a Coupling Structure for Compact Mobile Internet of Things (IoT) and Electric Vehicles (EVs) Device Applications in 5G, LTE, WLAN, W... by Ming-An Chung, Chih-Wei Yang

    Published 2021-01-01
    “…There is an urgent need for a complete frequency-continuous and large bandwidth design in the current wireless communication design to achieve a multimode, multifrequency, physical phenomenon design with large bandwidth and continuous operating frequency. …”
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    Article
  12. 212

    Application of WiMAX technology in difficult geographical conditions: Perspectives for mountain environment by Rustamova D. F., Suleymanov N. M., Gafarov G. A., Bakhshaliyeva S. V., Marasulov M., Rizaeva Sh.

    Published 2025-01-01
    “…WiMAX (Worldwide Interoperability for Microwave Access) is a telecommunications technology designed to provide universal wireless communication over long distances for a wide range of devices (from workstations and notebook computers to mobile phones). …”
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  13. 213

    A Novel CPW-Fed UWB Antenna with Band-Stop Function by Huaming Chen, Zhengrong Li, Baiyu Li, Guangfu Sun

    Published 2014-01-01
    “…Simulated and measured results show that the designed antenna operates at 2.9 GHz–13.08 GHz with band rejection in the frequency band of 7.7 GHz–9.05 GHz for satellite applications, and the proposed antenna is suitable for UWB wireless communication applications.…”
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  14. 214

    Compact Multiband Slot Antenna for WLAN/WiMAX Operations by Jianhui Bao, Qiulin Huang, Xinhuai Wang, Xiaowei Shi

    Published 2014-01-01
    “…These modes cover the standards of 3.5 GHz WiMAX and 2.4/5.8 GHz WLAN, three useful frequency bands for present wireless communication systems. The proposed antenna fed by L-shaped microstrip line has a small overall dimension of 16×30 mm2. …”
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  15. 215

    Vector Rayleigh Diffraction of High-Power Laser Diode Beam in Optical Communication by Qiang Xu, Renxian Li, Yuanyuan Zhang, Yiping Han, Zhensen Wu

    Published 2020-01-01
    “…Laser diodes (LDs) are widely used in optical wireless communication (OWC) and optical networks, and proper theoretical models are needed to precisely describe the complicated beam field of LDs. …”
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  16. 216

    Broadcast Network Coverage with Multicell Cooperation by Hongxiang Li, Samee Ullah Khan, Hui Liu

    Published 2010-01-01
    “…Multicell cooperation has been identified as one of the underlying principles for future wireless communication systems. This paper studies the benefits of multicell cooperation in broadcast TV network from an information theoretical perspective. …”
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  17. 217

    Indoor Massive MIMO Channel Modelling Using Ray-Launching Simulation by Jialai Weng, Xiaoming Tu, Zhihua Lai, Sana Salous, Jie Zhang

    Published 2014-01-01
    “…Massive multi-input multioutput (MIMO) is a promising technique for the next generation of wireless communication networks. In this paper, we focus on using the ray-launching based channel simulation to model massive MIMO channels. …”
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  18. 218

    Investigation of Shadowing Effects in Typical Propagation Scenarios for High-Speed Railway at 2350 MHz by Liu Liu, Cheng Tao, David W. Matolak, Tao Zhou, Houjin Chen

    Published 2016-01-01
    “…The results should be useful for the evaluation and verification of wireless communication in High-Speed Railway scenarios.…”
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    Article
  19. 219

    Design of a Narrow Bandwidth Bandpass Filter Using Compact Spiral Resonator with Chirality by Weiping Li, Zongxi Tang, Xin Cao

    Published 2016-01-01
    “…By comparing to other filters in the references, it is shown that the proposed filter has the advantage of skirt selectivity and compact size, so it can be integrated more conveniently in modern wireless communication systems and microwave planar circuits.…”
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  20. 220

    Compact Dual-Band Dipole Antenna with Asymmetric Arms for WLAN Applications by Chung-Hsiu Chiu, Chun-Cheng Lin, Chih-Yu Huang, Tsai-Ku Lin

    Published 2014-01-01
    “…More importantly, the compact size (7 mm × 24 mm) and good radiating performance of the antenna are profitable to be integrated with wireless communication devices on restricted RF-elements spaces.…”
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    Article