Real-time Demonstration of Software Reconfigurable Dynamic Power-and-subcarrier Allocation Scheme for OFDM-NOMA based Multi-user Visible Light Communications

2019 ◽  
Author(s):  
Jin Shi ◽  
Yang Hong ◽  
Rui Deng ◽  
Jing He ◽  
Lian-Kuan Chen ◽  
...  
Keyword(s):  
Visible Light ◽  
Real Time ◽  
Subcarrier Allocation ◽  
Visible Light Communications ◽  
Allocation Scheme ◽  
Dynamic Power

Dual-Codeword Allocation Scheme for Dimmable Visible Light Communications

2013 ◽  
Vol 25 (13) ◽  
pp. 1274-1277 ◽  
Author(s):  
Youngsuk Suh ◽  
Chang-Hoi Ahn ◽  
Jae Kyun Kwon
Keyword(s):  
Visible Light ◽  
Visible Light Communications ◽  
Allocation Scheme

scholarly journals A Real-time Vehicular Visible Light Communications for Smart Transportation

2020 ◽  
Author(s):  
Karunankitha Lega ◽  
Sai Naga Haneesh Sammeta ◽  
Divya Bollepally ◽  
Guru Kalyan Mallavarapu ◽  
Elizabeth Eso ◽  
...  
Keyword(s):  
Visible Light ◽  
Real Time ◽  
Visible Light Communications ◽  
Smart Transportation

scholarly journals Visible light communications: real time 10 Mb/s link with a low bandwidth polymer light-emitting diode

2014 ◽  
Vol 22 (3) ◽  
pp. 2830 ◽  
Author(s):  
Paul Anthony Haigh ◽  
Francesco Bausi ◽  
Zabih Ghassemlooy ◽  
Ioannis Papakonstantinou ◽  
Hoa Le Minh ◽  
...  
Keyword(s):  
Visible Light ◽  
Real Time ◽  
Light Emitting Diode ◽  
Visible Light Communications ◽  
Light Emitting ◽  
Polymer Light Emitting Diode

scholarly journals Energy-Efficient Optimization Design for the Multi-Color LED Based Visible Light Communication Systems under Illumination Constraints

2018 ◽  
Vol 9 (1) ◽  
pp. 1 ◽  
Author(s):  
Yu Zuo ◽  
Jian Zhang
Keyword(s):  
Energy Consumption ◽  
Visible Light ◽  
Power Allocation ◽  
Communication Systems ◽  
Optimization Design ◽  
Optical Power ◽  
Visible Light Communication ◽  
Visible Light Communications ◽  
Allocation Scheme ◽  
High Modulation

Visible light communications (VLCs) utilizing multi-color light-emitting diodes (LEDs) can achieve a high modulation bandwidth and high-quality illumination compared with phosphor-converted LEDs, which have attracted much attention. However, the spectrum overlapping of different colors may cause the crosstalk problem, which should be considered in the practical multi-color LED-based VLC systems. Due to the ever-increasing energy consumption, the interest in an energy-saving communication technique has further increased. In this paper, in order to maximize energy efficiency, an optimization problem of the optical power allocation scheme is formulated for the multi-color LED-based VLC systems under the necessary communication requirements and illumination constraints with luminance, chromaticity, and signal to interference plus noise ratio (SINR) constraints. Simulation results indicate that the proposed optimal power allocation scheme can reduce energy consumption while satisfying the illumination and communication requirements.

Discuss the Number of Sub-Channels and Quantization Bits in a DCO-OFDM VLC System

2013 ◽  
Vol 411-414 ◽  
pp. 819-822
Author(s):  
Kun Chen ◽  
Geng Chen ◽  
Ming Lun Zhang ◽  
Yan Gan Zhang
Keyword(s):  
Visible Light ◽  
Real Time ◽  
Simulation System ◽  
Visible Light Communications ◽  
Time System ◽  
Real Time System ◽  
Integrated Simulation ◽  
Optical Ofdm

This paper introduces an integrated simulation system for visible light communications (VLC) which is based on DC-biased optical OFDM (DCO-OFDM). By simulating a VLC system with an equalizer, we optimize the parameters for a real-time system: the number of sub-channels and quantization bits. It could be concluded that a 128 sub-channels system is suitable when the signal bandwidth exceeds 100MHz and 6 quantization bits should be enough for a VLC system, which would be useful when it comes to a hardware only system.

scholarly journals Gbps Long-Distance Real-Time Visible Light Communications Using a High-Bandwidth GaN-Based Micro-LED

2017 ◽  
Vol 9 (6) ◽  
pp. 1-9 ◽  
Author(s):  
Xiaoyan Liu ◽  
Pengfei Tian ◽  
Zixian Wei ◽  
Suyu Yi ◽  
Yuxin Huang ◽  
...  
Keyword(s):  
Visible Light ◽  
Real Time ◽  
Visible Light Communications ◽  
Long Distance ◽  
High Bandwidth
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