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收集所有交通大學研究人員與學生個人或團體所發表之各項學術著作，涵蓋期刊論文、教師專書、學位論文等項。;;Collections of Publications of NCTU Researchers and Students Like Journal Papers and Thesis.

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🏛️國立陽明交通大學機構典藏

Author: search.filters.author.Liu, YangSubject: search.filters.subject.visible light communication (VLC)

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Now showing 1 - 5 of 5
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    Angle-of-Arrival (AOA) Visible Light Positioning (VLP) System Using Solar Cells With Third-Order Regression and Ridge Regression Algorithms
    (2020-06-01)
    Hong, Chong-You
    ;
    Wu, Yu-Chun
    ;
    Liu, Yang
    ;
    Chow, Chi-Wai
    ;
    Yeh, Chien-Hung
    We put forward and demonstrate a angle-of-arrival (AOA) based visible-light-positioning (VLP) system using quadrant-solar-cell (QSC) and third-order ridge regression machine learning (RRML) to improve the positioning accuracy.
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    Demonstration of Non-Hermitian Symmetry (NHS) IFFT/FFT Size Efficient OFDM Non-Orthogonal Multiple Access (NOMA) for Visible Light Communication
    (2020-06-01)
    Assaidah, Assaidah
    ;
    Liu, Yang
    ;
    Chow, Chi-Wai
    ;
    Yeh, Ching-Hua
    ;
    交大名義發表
    We propose and experimentally demonstrate a non-orthogonal multiple access (NOMA) visible light communication (VLC) system using non-Hermitian symmetry (NHS) inverse-fast-Fourier-transform (IFFT)/FFT size efficient (SE) orthogonal frequency division multiplexing (OFDM). Fix power allocation and successive interference cancellation (SIC) algorithms are realized. The power ratio between different users, transmission distance, network cell coverage are investigated. The proposed scheme is also compared with the HS based direct-current optical (DCO)-OFDM NOMA-VLC system.
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    High Speed Imaging 3 x 3 MIMO Phosphor White-Light LED Based Visible Light Communication System
    (2016-12-01)
    Hsu, Chin-Wei
    ;
    Chow, Chi-Wai
    ;
    Lu, I-Cheng
    ;
    Liu, Yen-Liang
    ;
    Yeh, Chien-Hung
    The phosphor light-emitting diode (LED) has been widely used not only for indoor illumination but for the optical transmitter (Tx) as well in visible light communication (VLC). However, the transmission data rate is significantly limited by the modulation bandwidth of LED because of the low-speed response of phosphor. In order to enhance the data rate of the VLC system, we demonstrate a 3 x 3 imaging multiple-input multiple-output (MIMO) VLC system. Besides, the pre-equalizer circuit is used to extend the bandwidth of the LED Tx. Orthogonal frequency division multiplexing (OFDM) with bit-loading algorithm is used. By using the proposed scheme, the original 1 MHz bandwidth commercially available phosphor white light LED can achieve 1 Gbps data rate over 1-m free-space transmission distance.
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    Optical Wireless Communications using Visible LED
    (2015-01-01)
    Chow, Chi-Wai
    ;
    Yeh, Chien-Hung
    ;
    Liu, Yang
    ;
    光電工程學系
    ;
    光電工程研究所
    The improvements of power efficiency and cost reduction enable light emitting diode (LED) to be deployed in a variety of applications. LED can be switched on and off at a relatively high speed than the conventional lighting sources; hence it is possible to use LED as transmitter for optical wireless communication (OWC). In this talk, we will discuss different schemes to enhance the transmission capacity of OWC. We will also discuss some methods to mitigate the background optical noises. In addition, we will highlight different specific applications of OWC, such as positioning, optical beam forming, etc ...
  • Thumbnail Image
    Item type:Item,
    Optical Wireless Communications using Visible LED
    (2015-01-01)
    Chow, Chi-Wai
    ;
    Yeh, Chien-Hung
    ;
    Liu, Yang
    ;
    光電工程學系
    ;
    Department of Photonics
    The improvements of power efficiency and cost reduction enable light emitting diode (LED) to be deployed in a variety of applications. LED can be switched on and off at a relatively high speed than the conventional lighting sources; hence it is possible to use LED as transmitter for optical wireless communication (OWC). In this talk, we will discuss different schemes to enhance the transmission capacity of OWC. We will also discuss some methods to mitigate the background optical noises. In addition, we will highlight different specific applications of OWC, such as positioning, optical beam forming, etc...