Performance optimization in multi-user multiband carrierless amplitude and phase modulation for visible light communication

2018 ◽  
Author(s):  
M. Mohammedi Merah ◽  
H. Guan ◽  
L. Chassagne
Keyword(s):  
Visible Light ◽  
Performance Optimization ◽  
Phase Modulation ◽  
Visible Light Communication

scholarly journals 1.1-Gb/s White-LED-Based Visible Light Communication Employing Carrier-Less Amplitude and Phase Modulation

2012 ◽  
Vol 24 (19) ◽  
pp. 1730-1732 ◽  
Author(s):  
Fang-Ming Wu ◽  
Chun-Ting Lin ◽  
Chia-Chien Wei ◽  
Cheng-Wei Chen ◽  
Hou-Tzu Huang ◽  
...  
Keyword(s):  
Visible Light ◽  
Phase Modulation ◽  
Visible Light Communication ◽  
White Led

scholarly journals Performance Optimization of Visible Light Communication

2021 ◽  
Vol 9 ◽  
Author(s):  
Agha Yasir Ali ◽  
◽  
Lubna Farhi ◽  
Usama Ahmed ◽  
Asad Subhan ◽  
...  
Keyword(s):  
Visible Light ◽  
Bit Error Rate ◽  
Performance Optimization ◽  
Visible Light Communication ◽  
Data Rate ◽  
Modulation Scheme ◽  
Performance Parameters ◽  
Trade Off ◽  
High Bandwidth ◽  
Ber Performance

This paper focuses to analyze the data rate, bit error rate (BER), flickering & bandwidth of visible light communication (VLC) system. The existing modulation scheme ON-OFF Keying (OOK) is modified and produces the trade-off between these parameters. The modified ON-OFF Keying (MOOK) is proposed in which the variation in the transmitted pulses is investigated. Therefore, the square and rectangular pulses are used to transmit zero and one bits respectively. The duty cycle of square pulse is increased to improve the flickering performance. Moreover, it utilized the bandwidth and deteriorates the BER performance. The differential MOOK (DMOOK) modulation scheme is also proposed in which the ON period of square pulse (zero bits) is removed. Therefore, the data rate of DMOOK is increased because the duration of zero bit pulse is decreased. Similarly, the high bandwidth is utilized and BER performance deteriorates. All performance parameters are evaluated on Arduino based hardware VLC system. We conclude that the BER performance deteriorates by improving flickering performance and data rate of the VLC system.

LED Visible Light Communication System Design and Performance Optimization Based on Ethernet

2013 ◽  
Vol 336-338 ◽  
pp. 1920-1924
Author(s):  
Song Jian Bao
Keyword(s):  
Visible Light ◽  
Communication Technology ◽  
Performance Optimization ◽  
System Performance ◽  
Influence Factors ◽  
Visible Light Communication ◽  
Broadband Access ◽  
Wireless Broadband ◽  
Communication System Design ◽  
And Performance

To satisfy the requirements of visible light wireless communication technology, designed LED visible light communication application system based on Ethernet. Influence factors of system performance were studied and took specific measures to optimize system performance. Reduced the influence of background light, improved the communication distance, inhibited LED light source tailing phenomenon, and improved the rate of the edge of the LED. The LED visible light communication technology blends into the Ethernet, provides a new solution for wireless broadband access, this solution has the broad application prospect.

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