Novel detection technique for smartphone to smartphone visible light communications

Boubezari, Rayana; Minh, Hoa Le; Ghassemlooy, Zabih; Bouridane, Ahmed

doi:10.1109/csndsp.2016.7573915

Cited by 7 publications

(8 citation statements)

References 17 publications

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“…However, the data rate is approximately 10 bps. In [7], the visual information was divided into rectangular regions and the data information was transmitted by slightly changing the luminance component of each region.…”

Section: Related Workmentioning

confidence: 99%

Preventing Degradation of the Quality of Visual Information in Digital Signage and Image-Sensor-Based Visible Light Communication Systems

et al. 2018

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In this paper, we propose an image-sensor-based visible light communication (IS-VLC) system that provides visual information in digital signage used for advertisements. One important issue of IS-VLC systems is the deterioration of visual information while transmitting the data information. Human eyes are sensitive to luminance but not to color difference; therefore, we propose the modulation of color difference. We evaluate the performance of the proposed system in terms of both the quality of visual information and communication quality of data information, and clarify the effectiveness of the proposed system.

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Section: Related Workmentioning

confidence: 99%

Preventing Degradation of the Quality of Visual Information in Digital Signage and Image-Sensor-Based Visible Light Communication Systems

et al. 2018

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“…), which is highly useful in VLC [2]- [5]. Such systems also offer imaging multiple-input multipleoutput (MIMO) capability [3], [7] for use in indoor [8], [9] and outdoor [10] applications including intelligent transportation systems (ITS), indoor localizations, and device-to-device communications [11], [12]. In ITS, the MIMO feature of cameras can be exploited for collision warning, adaptive cruise control, enhancing driving safety, people and object detection, range estimations and data communications in vehicle-to-vehicle and vehicle-to-road side infrastructure communications [10], [13]- [15].…”

Section: Introductionmentioning

confidence: 99%

“…2) Detection and tracking of Txs: given that Txs are part of the image a number of solutions have been proposed such as frame subtraction in LOS [11], [17] and NLOS [18], block matching [12], and vision-based image processing [19], [20]. However in image processing schemes the processing time is considerably high, and the offered R b is very low (i.e., kbps) due to the low camera frame rate R f .…”

Section: Introductionmentioning

confidence: 99%

Non-Line-of-Sight MIMO Space-Time Division Multiplexing Visible Light Optical Camera Communications

Hassan

Ghassemlooy

Zvánovec

et al. 2019

J. Lightwave Technol.

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In this paper, a non-line-of-sight multiple-input multiple-output space and time division multiple access optical camera communications system is proposed for an indoor environment. Mask matching and equal-gain combining (EGC) schemes as well as differential modulation and frame subtraction are used. We propose a unique packet structure to label the transmitters and a new detection method for data extraction from the captured video streams. We outline a comprehensive theoretical model and have developed an experimental testbed to evaluate the performance of the proposed system. The results highlight that zooming and defocusing of the camera does not have a significant impact on the system performance, therefore the aperture can be set to its maximum value. The system performs well over a link span of 10 m with a low transmit power of 12 mW and in the presence of ambient light due to the non-linear conversion of RAW to JPEG. Using mask matching and EGC improves the tolerance of the system to the noise.

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“…In smart devices with OLED displays [5] pixels can be individually intensity modulated for data transmission, which can be received using the built-in camera of another smartphone (i.e., D2D communications) [6,7]. A great deal of attention on the implementation of OLEDs in high-resolution displays and applications in low-cost future solid-state lighting are good reasons to extend the use of OVLC technology [8].…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Various Training Algorithms for ANN Equalization in Visible Light Communications with an Organic LED

Chaleshtori

Haigh

Chvojka

et al. 2019

2019 2nd West Asian Colloquium on Optical Wireless Communications (WACOWC)

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This paper evaluates the effect of training algorithms in an artificial neural network (ANN) equalizer for a feedforward multi-layer perceptron configuration in visible light communication systems using a low bandwidth organic light source. We test the scaled conjugate-gradient, conjugate-gradient backpropagation and Levenberg-Marquardt back propagation (LM) algorithms with 5, 10, 20, 30, and 40 neurons. We show that, LM offers superior bit error rate performance in comparison to other training algorithms based on the mean square error. The training methods can be selected based on the trade-off between complexity and performance.

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Novel detection technique for smartphone to smartphone visible light communications

Cited by 7 publications

References 17 publications

Preventing Degradation of the Quality of Visual Information in Digital Signage and Image-Sensor-Based Visible Light Communication Systems

Preventing Degradation of the Quality of Visual Information in Digital Signage and Image-Sensor-Based Visible Light Communication Systems

Non-Line-of-Sight MIMO Space-Time Division Multiplexing Visible Light Optical Camera Communications

Performance Evaluation of Various Training Algorithms for ANN Equalization in Visible Light Communications with an Organic LED

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