Artificial neural network-based threshold detection for OOK-VLC Systems

Sönmez, Mehmet Fatih

doi:10.1016/j.optcom.2019.125107

Cited by 8 publications

(10 citation statements)

References 13 publications

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“…The theoretical studies can present the ambient light as Direct-Current (DC) [7,12]. However, the condition can be invalid for practical applications.…”

Section: Problem Statementmentioning

confidence: 99%

“…This is one of the most important disadvantages of OOK scheme. In addition to this, it is observed from references [7][8][9][10][11][12] that BER performance of OOK suffer from the ambient light effect since ambient light causes a fluctuation at the threshold level. Hence, various modulation schemes have been improved to detect data bits without using any threshold value.…”

Section: Introductionmentioning

confidence: 96%

“…In the literature, it is considered that ambient light is defined as D.C. level signal under non-mobile conditions [7,12]. Hence, the BER performance of PPM cannot affect from variable D.C. level since the DC level is equally added to all PPM slots [20].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Ambient Light Effect on Receiver for Visible Light Communication Systems

Sönmez

SÖKMEN

2022

Gazi University Journal of Science

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“…The theoretical studies can present the ambient light as Direct-Current (DC) [7,12]. However, the condition can be invalid for practical applications.…”

Section: Problem Statementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

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Ambient Light Effect on Receiver for Visible Light Communication Systems

Sönmez

SÖKMEN

2022

Gazi University Journal of Science

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“…The requirement of threshold value is one of the difficulties in OOK systems. Hence, it must be achieved the estimation of threshold value or classification of logical levels for OOK systems [6]. Another modulation scheme is Pulse Position Modulation (PPM) scheme which has better performance in terms of power efficiency compared to OOK.…”

Section: Introductionmentioning

confidence: 99%

The Performance Analysis of K-Nearest Neighbors Based Detection Algorithm in Visible Light Communication Systems

Sönmez¹

2021

IJSRP

Self Cite

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The Visible Light Communication (VLC) is a promising technology to assure the wireless data transmission for optical wireless communication system. Some modulation methods used in VLC systems require to apply a threshold value on the receiver side. In this paper, therefore, it has been investigated the classifier based demodulator architectures to solve the data detecting problem for threshold-based transmission methods such as On-Off Keying (OOK) scheme, under the condition of the unknown threshold level value. The presented receiver schemes use the K-Nearest Neighbors (KNN algorithm to classify the logical level of received OOK signal. These classification method requires a few training data to detect data bits for OOK receiver system. It can be observed from the simulation results that the receiver system is affected from the number of the neighbor employed in the KNN algorithm. Addition to this, Observation of the result clearly shows that the training set size is crucial for the Bit Error Rate (BER) Performance. According to simulation results, the transmission distance can be increased 2.451 m to 2.530 m at the BER of approximately 10-3 by using KNN method at the receiver side.

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“…As shown in our results, the LED-to-LED VLC system has a few limitations, such as its low data rate and short transmission distance. However, we think that a higher data rate and longer transmission distance can be achieved with advanced detection techniques (e.g., artificial neural-network-based detection and optimally weighted non-coherent detection) [19,20].…”

mentioning

confidence: 99%

A Full-Duplex LED-to-LED Visible Light Communication System

Jung

Kim

2020

Electronics

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We experimentally demonstrated full-duplex light-emitting diode (LED)-to-LED visible light communication (VLC) using LEDs as the transmitter and receiver. Firstly, we investigated the performance dependency on the wavelengths of the LED transmitter and receiver by measuring the rise time and signal-to-noise ratio (SNR). Through the investigation, we were able to choose the optimal LED color set for LED-to-LED VLC using Shannon’s channel capacity law. The bit error rate (BER) results of full-duplex and half-duplex LED-to-LED VLC systems with the optimal LED sets are shown to compare the performance. Furthermore, we discuss major distortions and signal losses in the full-duplex LED-to-LED VLC system.

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Artificial neural network-based threshold detection for OOK-VLC Systems

Cited by 8 publications

References 13 publications

Ambient Light Effect on Receiver for Visible Light Communication Systems

Ambient Light Effect on Receiver for Visible Light Communication Systems

The Performance Analysis of K-Nearest Neighbors Based Detection Algorithm in Visible Light Communication Systems

A Full-Duplex LED-to-LED Visible Light Communication System

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