کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11001449 | 996887 | 2019 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Superposition constellation design for multi-user multi-chip visible light communication systems
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Superposition constellation design for multi-user multi-chip visible light communication systems Superposition constellation design for multi-user multi-chip visible light communication systems](/preview/png/11001449.png)
چکیده انگلیسی
In this paper, we study a multi-user multi-chip visible light communication (VLC) system. The superposition constellation is proposed for the system to achieve an efficient multi-user communication. Specifically, the constellation design is formulated to maximize the minimum Euclidean distance between users' symbols with the constraint of illuminance, chromaticity and the dynamic range of light-emitting diodes (LEDs). It is proved the users' performance is determined by the minimum Euclidean distance of the constellation. We then transform the constellation design into a convex optimization problem by Taylor series and get an iterative algorithm. In addition, a kind of modulation and demodulation methods is provided for the system. Simulation results illustrate that the proposed method outperforms the conventional time division multiple address (TDMA) scheme.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 432, 1 February 2019, Pages 27-31
Journal: Optics Communications - Volume 432, 1 February 2019, Pages 27-31
نویسندگان
Zheng-Guo Sun, Hong-Yi Yu, Yi-Jun Zhu,