Effects of Optical Beams on MIMO Visible Light Communication Channel Characteristics

Under 5G envision, for pushing visible light communication (VLC) channel model evolution to various non-Lambertian beams, this paper introduces the typical commercial non-Lambertian beams, such as Luxeon rebel and side emitter, into the conventional analytical VLC channel model. The numerical results illustrate that the non-Lambertian beams can significantly affect the VLC channel frequency response characteristics. Compared with the traditional Lambertian beam, Side Emitter optical beam could naturally bring up to about 56.8% VLC multi input multi output channel capacity deviation, which objectively opens a new discussion dimension for enhancing VLC transmission performance.

Download Full-text

Visible Light Communication Channel Models and Simulation of Coal Workface Energy Coupling

Mathematical Problems in Engineering ◽

10.1155/2015/271352 ◽

2015 ◽

Vol 2015 ◽

pp. 1-10 ◽

Cited By ~ 8

Author(s):

Yanrong Zhai ◽

Shen Zhang

Keyword(s):

Visible Light ◽

Communication Systems ◽

Communication Channel ◽

Channel Model ◽

Coal Dust ◽

Signal Transmission ◽

Energy Coupling ◽

Mathematic Model ◽

Visible Light Communication ◽

Optical Signal

Due to their low energy consumption and small size, visible light communication systems have been widely used to eliminate communication-blind areas in coal workfaces. A workface visible light communication channel model and a mathematic model of energy coupling from the mining machine’s workspace to its footpath were established to investigate the characteristics of optical signal transmission on the workface. This paper studies the effects of coal dust (double-layer particles encapsulated by moisture) on optical signal degradation. Simulation results revealed the presence of an optimized transmitter location, which maximized the coupled energy of the two space signals due to the blocking effect of metal columns.

Download Full-text

Indoor amplify-and-forward power-line and visible light communication channel model based on a semi-hidden Markov model

AEU - International Journal of Electronics and Communications ◽

10.1016/j.aeue.2020.153108 ◽

2020 ◽

Vol 124 ◽

pp. 153108 ◽

Cited By ~ 1

Author(s):

Oluwafemi Kolade ◽

Ayokunle Damilola Familua ◽

Ling Cheng

Keyword(s):

Markov Model ◽

Visible Light ◽

Hidden Markov Model ◽

Communication Channel ◽

Channel Model ◽

Hidden Markov ◽

Visible Light Communication ◽

Power Line ◽

Amplify And Forward ◽

Model Based

Download Full-text

Study on LED Visible Light Communication Channel Model Based on Poisson Stochastic Network Theory

2020 International Conference on Wireless Communications and Smart Grid (ICWCSG) ◽

10.1109/icwcsg50807.2020.00009 ◽

2020 ◽

Author(s):

Hao Wu ◽

Qunzhen Fan

Keyword(s):

Visible Light ◽

Network Theory ◽

Communication Channel ◽

Channel Model ◽

Visible Light Communication ◽

Stochastic Network ◽

Model Based

Download Full-text

Statistical Studies Using Goodness-of-Fit Techniques with Dynamic Underwater Visible Light Communication Channel Modeling

IEEE Access ◽

10.1109/access.2021.3072689 ◽

2021 ◽

pp. 1-1

Author(s):

Mohamed Mahmoud ◽

Ayman I. Boghdady ◽

Abd El-Rahman A. El-Fikky ◽

Moustafa H. Aly

Keyword(s):

Visible Light ◽

Goodness Of Fit ◽

Communication Channel ◽

Channel Modeling ◽

Visible Light Communication ◽

Statistical Studies

Download Full-text

A channel model for indoor visible light communication system with specular reflection

2017 16th International Conference on Optical Communications and Networks (ICOCN) ◽

10.1109/icocn.2017.8121510 ◽

2017 ◽

Cited By ~ 3

Author(s):

Jian Chen ◽

Chenchen Yan

Keyword(s):

Visible Light ◽

Communication System ◽

Channel Model ◽

Specular Reflection ◽

Visible Light Communication

Download Full-text

Electroluminescence and photo-response of inorganic halide perovskite bi-functional diodes

Nanophotonics ◽

10.1515/nanoph-2018-0149 ◽

2018 ◽

Vol 7 (12) ◽

pp. 1981-1988 ◽

Cited By ~ 4

Author(s):

Ning Li ◽

Ying Suet Lau ◽

Yanqin Miao ◽

Furong Zhu

Keyword(s):

Visible Light ◽

High Speed ◽

Light Emission ◽

Forward Bias ◽

Green Light ◽

Visible Light Communication ◽

Light Emitting ◽

Response Characteristics ◽

Photo Response ◽

Halide Perovskite

AbstractIn this work, we report our efforts to develop a novel inorganic halide perovskite-based bi-functional light-emitting and photo-detecting diode. The bi-functional diode is capable of emitting a uniform green light, with a peak wavelength of 520 nm, at a forward bias of >2 V, achieving a high luminance of >103 cd/m2 at 7 V. It becomes an efficient photodetector when the bi-functional diode is operated at a reverse bias, exhibiting sensitivity over a broadband wavelength range from ultraviolet to visible light. The bi-functional diode possesses very fast transient electroluminescence (EL) and photo-response characteristics, e.g. with a short EL rising time of ~6 μS and a photo-response time of ~150 μS. In addition, the bi-functional diode also is sensitive to 520 nm, the wavelength of its peak EL emission. The ability of the bi-functional diodes for application in high speed visible light communication was analyzed and demonstrated using two identical bi-functional diodes, one performed as the signal generator and the other acted as a signal receiver. The dual functions of light emission and light detection capability, enabled by bi-functional diodes, are very attractive for different applications in under water communication and visible light telecommunications.

Download Full-text