Shore-to-Undersea Visible Light Communication

Darlis, Arsyad Ramadhan; Cahyadi, Willy Anugrah; Chung, Yeon Ho

doi:10.1007/s11277-017-5136-9

Cited by 7 publications

(3 citation statements)

References 11 publications

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“…Diketahui dari beberapa penelitian teknologi Visible Light Communication (VLC) harus memperhatikan penggunaan LED dan photodiode yang sesuai dengan sinyal informasinya (Liao, Chang, Ho, & Wu, 2013) dan dapat menggunakan beberapa metoda dalam aplikasinya (Bykhovsky & Arnon, 2014) (Chang et al, 2014) (Monteiro & Hranilovic, 2014) (Singh, O'Farrell, & David, 2014) (Wu et al, 2015). Serta dari beberapa penelitian lainnya didapatkan hasil yang mendukung pemanfaatan VLC sebagai teknologi masa depan yang patut diteliti lebih lanjut (Darlis, Cahyadi, & Chung, 2018) (Hanzo et al, 2012) (Liu, Yeh, & Chow, 2013).…”

Section: Pendahuluanunclassified

Color Filter Identification for Bidirectional Visible Light Communication

2018

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ABSTRAKSaat ini, cahaya tampak dimanfaatkan oleh manusia hanya sebagai penerangan saja. Akan tetapi, beberapa penelitian telah membuktikan bahwa cahaya tampak dapat dimanfaatkan pula pada sistem komunikasi, yang dinamakan Visible Light Communication (VLC). Pada penelitian ini, sebuah metoda menggunakan color filter diidentifikasi dalam mengimplementasikan sistem bidirectional pada teknologi VLC. Dengan adanya penelitian ini, sebuah sistem bidirectional Visible Light Communication (Bi-VLC) dapat diimplementasikan dengan menggunakan color filter tertentu yang dipasangkan pada posisi uplink dan downlink. Sinyal informasi berupa sinyal audio ditansmisikan melalui VLC transmitter (Tx) yang dipasang color filter dan diterima oleh color filter pada VLC receiver (Rx) setelah melalui media cahaya. Pengujian menunjukan bahwa sistem telah dapat melewatkan sinyal pada frekuensi audio dengan jarak maksimum dari sistem adalah 2,3 m. Sedangkan pasangan color filter yang memiliki kinerja paling baik untuk BI-VLC adalah Azure (Tx) dengan Charteuse Green (Rx), Charteuse Green (Tx) dengan Charteuse Green (Rx), dan Rose (Tx) dengan Charteuse Green (Rx).Kata kunci: Bidirectional, Visible Light Communication (VLC), Color Filter, Audio ABSTRACT Currently, visible light are utilized by humans as illumination only. However, several research have proven that visible light can also be used in communication systems, called Visible Light Communication (VLC). In this research, a method of using color filters was identified for bidirectional systems on VLC technology. With this research, a bidirectional Visible Light Communication (Bi-VLC) system can be implemented using a specific color filter paired in uplink and downlink mode. The audio signal as information is transmitted through a VLC transmitter (Tx) installed by a color filter and received by the color filter on the VLC receiver (Rx) after going through the light media. The result shows that the system has been able to pass the signal at the audio frequency with the maximum distance of the system is 2.3 m. While the best performance of color filter pair for BI-VLC is Azure (Tx) with Charteuse Green (Rx), Charteuse Green (Tx) with Charteuse Green (Rx), and Rose (Tx) with Charteuse Green (Rx).

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Section: Pendahuluanunclassified

Color Filter Identification for Bidirectional Visible Light Communication

2018

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“…146 inches 'The Wall' developed by Samsung) to ultrahigh-resolution (>5000 PPI [8]) virtual reality (VR) glasses and head-up displays. In addition, microLED-based flexible electronics can be served as medical sensors [9][10][11] to monitor physical/psychological conditions or treat disease [12], and microLED-based visible light communication (VLC) systems with high data rate (⩾10 Gbps [13][14][15]) and modulation bandwidth (⩾100 MHz [16,17]) make deep-sea communication possible [18,19]. These excellent features provide a strong incentive to develop high-efficiency and low-cost assembly concepts and processes for large-scale and highdensity microLED arrays.…”

Section: Introductionmentioning

confidence: 99%

Mass transfer techniques for large-scale and high-density microLED arrays

Chen

Bian

et al. 2022

Int. J. Extrem. Manuf.

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Inorganic-based micro light-emitting diodes (microLEDs) offer more fascinating properties and unique demands in next-generation displays. However, the small size of microLED chip (1~100 µm) makes it extremely challenging for high efficiency and low cost to accurately, selectively integrate millions of microLED chips. Recent impressive technological advances have overcome the drawbacks of traditional pick-and-place techniques when they were utilized in the assembly of microLED display, including the most broadly recognized laser lift-off technique, contact µTP technique, laser non-contact µTP technique, and self-assembly technique. Herein, we firstly review the key developments in mass transfer technique and highlight their potential value, covering both the state-of-the-art devices and requirements for mass transfer in the assembly of the ultra-large-area display and virtual reality glasses. We begin with the significant challenges and the brief history of mass transfer technique, and expand that mass transfer technique is composed of two major techniques, namely, epitaxial Lift-off technique and pick-and-place technique. The basic concept and transfer effects for each representative epitaxial Lift-off and pick-and-place technique in mass transfer are then overviewed separately. Finally, the potential challenges and future research directions of mass transfer are discussed.

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“…Other researches were done by Fuada et al [8], Deepa et al [9], and Qasin et al [10] that analyze VLC technology that will be used for those systems. Besides that, this technology has been implemented and applied indoors [11][12][13][14][15][16][17][18], underwater [19][20][21][22][23], vehicular [24], and internet network [25].…”

Section: Introductionmentioning

confidence: 99%

Light follower systems for visually impaired using visible light communication

2020

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Visual impairment is the condition of someone who has a disorder or an obstacle in their vision. In this research, the implementation of light follower systems for visually impaired using visible light is proposed. This system can enable visually impaired people to determine orientation and support mobility, especially in an indoor situation, using visible light. The prototype of the visually impaired pathway was made as visible light communication (VLC) transmitter consisting of a 12 V power supply, light emitting diode (LED), MPEG-1 Layer-3 (MP3), and band pass filter (BPF) filter circuit. The VLC receiver is made a prototype of a blind stick consisting of a photodiode, amplifier, buzzer, timer, and 9 V battery. The measurement of this system uses acrylic and color filters with system accuracy taking into account the angle and conditions when the fluorescent lights are turned on and off. This result showed the system could transmit audio signals at a frequency of 3000 Hz. Furthermore, the comparison results showed that the quality of measurements without using a filter is better than using a filter. The output voltage value without using a filter with an angle of 700 degree is 7.19 Vp-p, meanwhile using a filter with an angle of 700 degree is 6.48 Vp-p.

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Shore-to-Undersea Visible Light Communication

Cited by 7 publications

References 11 publications

Color Filter Identification for Bidirectional Visible Light Communication

Color Filter Identification for Bidirectional Visible Light Communication

Mass transfer techniques for large-scale and high-density microLED arrays

Light follower systems for visually impaired using visible light communication

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