Showing 1 - 20 results of 456 for search '"communications system"', query time: 0.06s Refine Results
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    Electronic Communications Systems / by Dungan, Frank R., 1924-

    Published 1987
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    Book
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    Improved Sparse Channel Estimation for Cooperative Communication Systems by Guan Gui, Wei Peng, Ling Wang

    Published 2012-01-01
    “…Accurate channel state information (CSI) is necessary at receiver for coherent detection in amplify-and-forward (AF) cooperative communication systems. To estimate the channel, traditional methods, that is, least squares (LS) and least absolute shrinkage and selection operator (LASSO), are based on assumptions of either dense channel or global sparse channel. …”
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    Power Allocation Intelligent Optimization for Mobile NOMA Communication System by Xiaobin Fu, Zhen Tang, Pingping Xiao

    Published 2022-01-01
    “…This paper considers the power allocation optimization problem of a two-user mobile NOMA communication system. Firstly, a mobile NOMA communication system model is established. …”
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    Linear Array Design with Switched Beams for Wireless Communications Systems by Vinícius Ludwig-Barbosa, Edson Schlosser, Renato Machado, Filipe Guterres Ferreira, Sabrina Müller Tolfo, Marcos Vinício Thomas Heckler

    Published 2015-01-01
    “…This paper presents an analysis for optimal design of switched beamforming applied to a linear array for wireless communication systems. The beam switching scheme provides coverage of a given sector in azimuth and controls the sidelobe level simultaneously. …”
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    Article
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    Three‐Way Equal Filtering Power Divider for Modern Communication Systems by Augustine O. Nwajana, Rose Paul

    Published 2025-01-01
    “…The design incorporates balanced signal power division, and filtering technology for the removal of unwanted frequency elements and aimed at enhancing signal quality and efficiency in the radiofrequency (RF) front‐end of communication systems. The use of FASOLR in the design helps to achieve miniaturization by reducing the device footprint. …”
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