کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11001627 | 996887 | 2019 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhancement of Signal Performance in bidirectional RSE-based CVLC system employing NPM modulation scheme
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Camera-based visible light communication (CVLC) exploiting rolling shutter effect (RSE) is a cost-effective technique that ensures secure data transmission. In this paper, a bidirectional CVLC system is experimentally demonstrated using smartphone/laptop as downlink/uplink transceiver in an experimental prototype testbed. Meanwhile, a Nyquist pre-distorted Manchester (NPM) modulation scheme is proposed and validated in the experimental testbed system. The proposed scheme is based on low-complexity transmitter-side digital signal processing (DSP) techniques, Nyquist shaping and linear pre-distortion, which can be employed for mitigation of the impact of extinction ratio (ER) fluctuation and exposure overlapping in the RSE-based CVLC system. The experimental results show that by using the proposed NPM modulation, the uplink and the downlink can both achieve about 4.8 Kb/s transmission with bit error rate (BER) of below than 3.8eâ3. It verifies the effectiveness of the proposed NPM scheme and the corresponding transmitter-side DSP techniques.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 432, 1 February 2019, Pages 97-100
Journal: Optics Communications - Volume 432, 1 February 2019, Pages 97-100
نویسندگان
Rui Deng, Jing He, Gee-kung Chang,