Real-time Audio &amp;amp; Video Transmission System Based on Visible Light Communication

He, Yingjie; Ding, Liwei; Gong, Yuxian; Wang, Yongjin

doi:10.4236/opj.2013.32b037

Cited by 29 publications

(12 citation statements)

References 8 publications

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“…This will create a suitable place to change the inefficient light bulbs with LEDs, which in turn will create an excellent environment to implement VLC everywhere. The combination of lighting and communication infrastructure can be cost efficient and consume less energy compared to the conventional lighting, where communication and lighting are used separately [11].…”

Section: A Submission Of the Papermentioning

confidence: 99%

Design and Implementation of MPVLC Li-Fi Model for End-To-End Wireless Data Transmission

Gayathri*,

Mohanapriya

2020

IJRTE

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Li-Fi system is a recent and brilliant technology which is utilized visible light as a medium for multimedia data transmission. In Li-Fi communication system, transfers data in the form of light signals as an alternative of Wi-Fi. The Li-Fi technology supports transmission of multimedia data in the way of light particles by sending the multimedia data via LED bulbs that make changes in faster transmission. The Li-Fi with hardware and software model creation with many parameters that must be considered while implementing a Li-Fi based transmission system prototype which is high data rate, distance and the LOS. These parameters are taken for major component when modelling a Light Fidelity system. The main problems in the implementation of an improved data rate at low network coverage and powerless location multi point VLC system and solar component are the range and cost effective model. The VLC source component and destination component must be compatible for high data rate. The conventional lighting technique in communication feels from intrusion and maximum delay possibilities. Solution for the above light based transmission problems in implementation; VLC is a preferred communication model because of its maximum throughput and secure transmission from light particles. The proposed Multi Point Visible Light Communication Li-Fi model provides high-speed communication to achieve better capacity, efficiency, and availability at low network coverage than existing lighting technology

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Section: A Submission Of the Papermentioning

confidence: 99%

Design and Implementation of MPVLC Li-Fi Model for End-To-End Wireless Data Transmission

Gayathri*,

Mohanapriya

2020

IJRTE

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“…By increasing the depth of modulation we can control the brightness of LED from 0% to 100%.modulation of brightness improves the performance of working [2]. High quality information transmission can be achieved by Visible light communication and the distance of 3 meters is achieved by using focusing lens in between transmitter and receiver [3]. The proposed system works on line of sight between the transmitter and the receiver, this can be advantage in a home environment where all or some of the electronic devices such as TVs, Radio, PC should be on at the same time and there could be more than one people working in same confined area [4].…”

Section: Literature Surveymentioning

confidence: 99%

Visible Light Communication for Audio Transmission

Srilekha.¹

2019

IJRASET

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Use of LEDs in an innovative technological way in Wireless Communication is known as Visible Light Communication. LED's are becoming more efficient and have innumerous applications. Now-a-days rapid growth is seen in LED technology. Visible Light Communications refers to the short range optical wireless communications. From the recent advancements in the LED technology, visible light communication attained the speeds up to 96 mbps by using different fast modulation techniques which may leads to dimming during their operation and dimming can be avoided by other modulation techniques providing flicker-free high data-rate visible light communications. The indoor based visible light communication provides both illumination and communication. Visible Light Communications are rapidly developing now a days. These are now emerging as high-efficient and are providing higher data-rates. In current project, we use Visible Light Communication for transmitting Audio Signals from a headphone jack to a speaker in the receiving side. The audio signals which are provided by the headphone jack to our circuit which converts the audio signal into the fluctuations, now these fluctuations are given to the LED, which controls the LED. This process is carried out at very high speeds which cannot be observed by the human eye. The light emitted from the LED is received by the photo-detector or a photo-diode at the receiver side. The received digital signal is now decoded onto the original signal and the received signal is now given to output devices such as speaker. The received signals are generally weak at the receiver circuit, so the received signals are amplified using suitable amplifier circuit.

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“…Kemudian Y. He, dkk melakukan eskperimen tentang pengiriman audio and video berkualitas high definition (HD) berbasis realtime dari handycamp dimana sistemnya mampu dipakai pada jarak maksimum 3 meter [17]. Sementara penelitian dengan pengiriman media video dilakukan oleh J.…”

Section: Pendahuluanunclassified

“…Pada eksperimen-eksperimen yang telah disebutkan [13][14][15][16][17][18] tidak dibahas secara detail tentang perancangan rangkaian AFE yang mencakup analisis kurva karakteristik dari LED yang digunakan. Padahal kurva tersebut diperlukan untuk mengetahui daerah liner dari LED dalam sistem VLC, sehingga sinyal analog dapat diatur secara adaptif yang dapat menyesuaikan amplitude maksimum dari daerah LED tersebut.…”

Section: Pendahuluanunclassified

Rancang Bangun Layer Fisik Visible Light Communication Pada Sistem Transmisi Audio

Adiono

2017

INFOTEL

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Abstrak -Kini, fungsi LED tidak hanya sebagai penerangan saja, melainkan dapat dimanfaatkan sebagai media komunikasi. Teknologi ini lazim disebut sebagai komunikasi cahaya tampak atau VLC, yang mana telah mulai diaplikasikan pada areaarea yang rentan gelombang elektromagnetik seperti rumah sakit, kabin pesawat, bandara, markas militer dan lain sebagainya. Media yang umumnya dijadikan objek transmisi data adalah berupa gambar, video, audio (musik), teks, bahkan paket data untuk keperluan browsing internet. Penelitian ini mengimplementasikan sistem VLC yang berfokus pada layer fisik, yakni pada bagian Analog Front-End (AFE). Sistem yang dirancang terdiri atas modul AFE transmitter sebagai modulator dan AFE receiver sebagai demodulator. Rancangan AFE transmitter mengadopsi prinsip dari modul Bias-T, dengan fungsi yang sama namun memiliki keunggulan pada sisi low-cost. Sedangkan pada bagian AFE receiver, terdapat modul DC-offset remover yang berfungsi untuk mereduksi sinyal DC dari ambient light. Hasil demonstrasi menunjukkan bahwa sistem secara fungsional dapat digunakan untuk transmisi sinyal audio via cahaya tampak dan secara langsung ditampilkan ke loudspeaker yang mana pengamatan dilakukan secara langsung dengan membandingkan amplitude sinyal input ke LED driver dengan sinyal output dari stage terakhir dari AFE receiver. Berdasarkan pengujian dapat ditunjukkan bahwa bandwidth optimum dari AFE transceiver adalah dalam rentang 50 kHz sampai 450 kHz (referensi redaman pada frekuensi cut-off = -3 dB) dan jarak maksimum transmisi data adalah 40 cm dengan sudut elevasi penerimaan sebesar 0 derajat.Kata kunci -Analog Front-End (AFE) transceiver, Komunikasi cahaya tampak, Layer fisik, Sinyal audio Abstract -Currently, LED functions not only as illumination purpose but also can be used as a communication device. Commonly, this technology is called as "visible light communication (VLC)", which has begun to be applied in areas susceptible to electromagnetic waves, such as hospitals, aircraft cabins, airports, military headquarters and etc. Generally, the media, which is used as object of the data transmission, e.g. digital images, video, audio (music only), texts, and even data packets for internet browsing purposes. This research implements a VLC system that focuses on the physical layer, especially in Analog Front-End (AFE) part. The designed system consists of an AFE transmitter module as a modulator and an AFE receiver as a demodulator. The designing AFE transmitter adopts the Bias-T module principle, it has same the functionality but extremely lower in the cost factor. While in the AFE receiver part, the DC-offset remover module is implemented, it has a function to reduce the DC signal that generated from ambient light. The results of demonstration show that the system, functionally, can be used for transmitting audio signals via visible light and the received data can be displayed to the loudspeaker directly. In this work, the data observation is done by comparing the amplitude of input signal connected to the drive...

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Real-time Audio & Video Transmission System Based on Visible Light Communication

Cited by 29 publications

References 8 publications

Design and Implementation of MPVLC Li-Fi Model for End-To-End Wireless Data Transmission

Design and Implementation of MPVLC Li-Fi Model for End-To-End Wireless Data Transmission

Visible Light Communication for Audio Transmission

Rancang Bangun Layer Fisik Visible Light Communication Pada Sistem Transmisi Audio

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