Showing 1,441 - 1,460 results of 3,139 for search '"wireless"', query time: 0.06s Refine Results
  1. 1441

    A Study on the Usage of Cross-Layer Power Control and Forward Error Correction for Embedded Video Transmission over Wireless Links by Fabrizio Granelli, Cristina E. Costa, Aggelos K. Katsaggelos

    Published 2007-01-01
    “…Cross-layering is a design paradigm for overcoming the limitations deriving from the ISO/OSI layering principle, thus improving the performance of communications in specific scenarios, such as wireless multimedia communications. However, most available solutions are based on empirical considerations, and do not provide a theoretical background supporting such approaches. …”
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  2. 1442

    A Novel Radio Wave Propagation Modeling Method Using System Identification Technique over Wireless Links in East Africa by Solomon T. Girma, Dominic B. O. Konditi, Ciira Maina

    Published 2018-01-01
    “…Transmission of a radio signal through a wireless radio channel is affected by refraction, diffraction and reflection, free space loss, object penetration, and absorption that corrupt the originally transmitted signal before radio wave arrives at a receiver antenna. …”
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    Simulation of transmission characteristics of oceanic wireless optical communication systems based on orbital angular momentum multiplexing with space-time coding by Xiaoli YIN, Tong ZHENG, Zhiwen SUN, Zhaoyuan ZHANG

    Published 2020-12-01
    “…In order to mitigate the crosstalk caused by oceanic turbulence in the underwater wireless orbital angular momentum multiplexing optical communication system, the application of space-time coding technology in the system was studied.Based on Rytov approximation, the covariance method and interpolation method were used to simulate correlated random phase screens and then the influence of time-varying oceanic turbulence channel on orbital angular momentum signal was studied.The transmission characteristics of orbital angular momentum multiplexing optical communication system with space-time coding was analyzed by simulation.The phase structure function of the time-varying phase screens and the detection probability distribution of the beam carrying the orbital angular momentum through the time-varying simulation channel were in line with theoretical expectations.The simulation results show that the space-time coding technology can effectively mitigate the influence of ocean turbulence on the system bit error rate.…”
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    Dynamic superframe adaptation using group-based media access control for handling traffic heterogeneity in wireless body area networks by Yousaf Zia, Fasial Bashir, Kashif Naseer Qureshi

    Published 2020-08-01
    “…Wireless body area network is a promising technology that brings healthcare to a new level of personalization. …”
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    Robust estimator for indoor node localization by ZHAO Fang1, MA Yan1, 3, LUO Hai-yong 4

    Published 2008-01-01
    Subjects: “…wireless sensor networks…”
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  16. 1456

    Survey on data transmission in Bluetooth technology by Zhi-hong QIAN, Dan LIU

    Published 2012-04-01
    Subjects: “…wireless communications…”
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