The performance of optical wireless OOK, 2-PPM and spread spectrum under the effects of multipath dispersion and artificial light interference

2000 ◽  
Vol 13 (7-8) ◽  
pp. 551-576 ◽  
Author(s):  
K. K. Wong ◽  
T. O'Farrell ◽  
M. Kiatweerasakul
Keyword(s):  
Spread Spectrum ◽  
Artificial Light ◽  
Optical Wireless ◽  
Light Interference ◽  
Multipath Dispersion

Performance Evaluation of Wavelet-Based Optical Wireless System using On-Off Keying Modulation

2019 ◽  
Vol 40 (3) ◽  
pp. 261-264
Author(s):  
Himanshu Monga ◽  
Shilpa Rani ◽  
Pooja Mehta
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Performance Evaluation ◽  
Wavelet Transform ◽  
Discrete Wavelet ◽  
Continuous Wavelet ◽  
Optical Wireless ◽  
Wireless System ◽  
Light Interference ◽  
Artificial Neural Network Ann

Abstract The paper investigates the performance of DWT (Discrete Wavelet Transform) and CWT (Continuous Wavelet Transform) techniques based on On – Off keying modulation (OOK) for reduced BER with increase in SNR in optical wireless system. In this work, the effects of Inter-symbol Interference (ISI) and light interference on Artificial Neural Network (ANN) receiver are analyzed and reported. In proposed optical wireless system the On- Off Keying (OOK) modulation is used at receiver to analyze BER and SNR. It is further concluded that error prospect in the received signal relates to the noise level, which is given in terms of obtained SNR value.

Wavelet-Neural Network VLC Receiver in the Presence of Artificial Light Interference

2013 ◽  
Vol 25 (15) ◽  
pp. 1424-1427 ◽  
Author(s):  
Sujan Rajbhandari ◽  
Paul Anthony Haigh ◽  
Zabih Ghassemlooy ◽  
Wasiu Popoola
Keyword(s):  
Neural Network ◽  
Wavelet Neural Network ◽  
Artificial Light ◽  
Light Interference
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