Secure Mobile-Phone Based Visible Light Communications With Different Noise-Ratio Light-Panel
نویسندگان
چکیده
منابع مشابه
Visible Light Communications
Visible light communication (VLC) is an optical wireless communication technology that uses low-power light-emitting diodes (LEDs) to not only provide light, but also broadcast data [1–3]. LEDs are extremely energy-efficient and are expected to become widespread in general lighting applications. Because LEDs are solid-state lighting devices, they can be modulated at high speed compared to other...
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– In order to implement visible light communications (VLC) through indoor lighting, a set of challenges arise due to conflicting requirements from the two missions. In this paper we examine one of these challenges: how to communicate when the lights are " off. " We investigate VLC with limits on transmit power, which we define to be low enough so that users will accept that the lights are in th...
متن کاملOn the Performance of Mobile Visible Light Communications
We experimentally characterize the performance of mobile VLC and propose using OCT precoding to combat mobility-induced performance degradation. Results show that for approximate 300Mb/s mobile VLC transmission, OCT precoding outperforms adaptive-loaded DMT and offers significant packet loss rate reduction. Introduction Compared with the conventional radio frequency based wireless communication...
متن کاملCoded Modulation with APSK for OFDM-Based Visible Light Communications
Coded modulation with APSK is proposed for OFDM-based VLC systems. Simulation results show that the proposed scheme achieves better performance than conventional QAM counterpart in both DCO-OFDM and ACO-OFDM systems, while similar complexity is maintained. OCIS codes: (060.2605) Free-space optical communication; (060.4080) Modulation.
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This paper proposes a novel indoor positioning algorithm using visible light communications (VLC). The algorithm is implemented by preinstalled light-emitting diode illumination systems. It recovers the VLC channel features from illuminating visible light and estimates receiver locations by analytically solving the Lambertian transmission equation group. According to our research, the algorithm...
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ژورنال
عنوان ژورنال: IEEE Photonics Journal
سال: 2018
ISSN: 1943-0655,1943-0647
DOI: 10.1109/jphot.2018.2807582