Rancang Bangun Layer Fisik Visible Light Communication Pada Sistem Transmisi Audio
Main Article Content
Abstract
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 area-area 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
Downloads
Article Details
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work
References
[2] A.R. Ndjiongue, H.C. Ferreira, and T.M.N. Ngatched, "Visible Light Communications (VLC) Technology," Wiley Encyclopedia of Electrical and Electronics Engineering, June 2015. DOI: 10.1002/047134608X.W8267.
[3] T. Adiono, S. Fuada, A.P. Putra, and Y. Aska, "Desain Awal Analog Front-End Optical Transceiver untuk aplikasi Visible Light Communication," J. Nasional Teknik Elektro dan Teknologi Informasi (JNTETI), Vol. 5(4), pp. 319-327, November 2016. DOI: 10.22146/jnteti.v5i4.280.
[4] T. Adiono, "Perancangan Sistem Layer Fisik OFDM," Bandung: Pusat Penelitian Mikroelektronika ITB, 2017, p. 2-3.
[5] D. Karunatilaka, F. Zafar, V. Kalavally, and R. Parthiban, "LED Based Indoor Visible Light Communications: State of the Art," IEEE Communication Surveys & Tutorials, Vol. 17(3), pp. 1649-1677, 2015.
[6] A. Pradana, et. al., "VLC Physical Layer Design based on Pulse Modulation (PPM) for Stable Illumination," Proc. of Int. Symp. on Intelligent Signal Processing and Communication Systems (ISPACS), pp. 368-373, November 2015.
[7] S. Prince and A. M. Vibin, "Optical Wireless Audio Communication Using LED Lighting System," Wireless Pers Commun, August 2015. DOI 10.1007/s11277-015-2980-3.
[8] V. Jelena, et. al., "Video Broadcast via a Lamp," Proc. of ICTON, pp. 1-4, 2010.
[9] D.K. Son, et. al., "Simultaneous transmission of audio and video signals using visible light communications," EURASIP J. on Wireless Communications and Networking, pp. 1-8, 2013. DOI:10.1186/1687-1499-2013-250.
[10] Z. Jia, A. Ding, Y. Zhang, and H. Guo, "A Digital Voice Transmission System based on Visible Light Communication," Proc. of the 5th IEEE Int. Conf. on Broadband Network & Multimedia Technology (IC-BNMT), pp. 227-231, June 2014.
[11] E.S. Rahayu, R.R.S. Alfarisi, and Iswandi, "Pengiriman Citra pada Komunikasi Cahaya Tampak IEEE 802.15.7 Lapisan Fisik II.f-n," J. Nasional Teknik Elektro dan Teknologi Informasi (JNTETI), Vol. 5(4), pp. 309-318, November 2016.
[12] P. Louro, et. al., "Transmission of signals using white LEDs for VLC applications," Proc. of the 12th Int. Conf. on Nanosciences & Nanotechnologies & 8th Int. Symp. on Flexible Organic Electronics, pp. 780 – 787. 2016.
[13] S. Dong, et. al., "A Voice Transmission System Based on Visible Light Communication," Proc. of the IEEE 5th Global Conf. on Consumer Electronics, pp. 1-2, 2016.
[14] M.I. Ma’ruf, M.B. Othman and H.P. Sholeh, "Audio Transmission using Visible Light Communication (VLC)," ARPN J. of Engineering And Applied Sciences, Vo. 10(20), pp. 9835-9838, November 2015.
[15] D. Yulian, D. Darlis, and S. Aulia, "Design and Implementation Visible Light Communication Devices as Video Transceiver" J. Elektro Telekomunikasi Terapan (JETT), pp. 196-206 Desember 2015.
[16] A.A. Anis, S.S. Dugha, and A.D. Fatma, "Design & Implementation of Visible Light Wireless Communication System for Audio Applications," Science and Technology J., pp. 1-11, December 2015.
[17] Y. He, L. Ding, Y. Gong, and Y. Wang, "Real-time Audio & Video Transmission System Based on Visible Light Communication," Optics and Photonics J., Vol. 3, pp. 153-157, June 2013.
[18] J. A. Rahman, M. Syuhaimi, L.A. Azizan, and J. Burhanudin, "Performance Analysis for Video Transmission in VLC Systems," J. of Modern Education Review, Vol. 6(9), pp. 668–679, September 2016.
[19] A. P. Putra, S. Fuada, Y. Aska, and T. Adiono, "System-on-Chip Architecture for High-Speed Data Acquisition in Visible Light Communication System," Proc. of the IEEE Int. Symposium on Electronics and Smart Devices (ISESD), pp. 63-67, March 2017. DOI: 10.1109/ISESD.2016.7886693
[20] T. Adiono, Yulian Y. Aska, A.A. Purwita, S. Fuada, and A.P. Putra, "Modeling OFDM system with Viterbi Decoder Based Visible Light Communication," Proc. of the Int. Conf. on Electronic, Information and Communication (ICEIC), January 2017.
[21] D. Darlis, A.R. Darlis, and M.H. Abibi, "Implementasi Sistem Penyiaran Musik Digital di Kafe menggunakan Visible Light Communication," Jurnal ELKOMIKA, Vol. 5(1), pp. 60 – 72, Juni 2017.
[22] S. Fuada, T. Adiono, A. P. Putra, and Y. Aska, "A Low-cost Analog Front-End (AFE) Transmitter Designs for OFDM Visible Light Communications," Proc. of the IEEE Int. Symposium on Electronics and Smart Devices (ISESD), pp. 371-375, March 2017. DOI: 10.1109/ISESD.2016.7886750.
[23] S. Fuada, A.P. Putra, Y. Aska, and T. Adiono, "Trans-impedance Amplifier (TIA) Design for Visible Light Communication (VLC) using Commercially Available OP-AMP," Proc. of the 3rd Int. Conf. on Information Tech. Computer, and Electrical Engineering (ICITACEE), pp. 31-35, October 2016. DOI: 10.1109/ICITACEE.2016.7892405.
[24] T. Adiono, and S. Fuada, "Investigation of Optical Interference Noise Characteristics in Visible Light Communication System," The 2017 Int. Symp. on Nonlinear Theory and Its Applications (NOLTA2017), Cancun, Mexico, December 2017.
[25] T. Adiono, and S. Fuada, "Karakteristik PIN Photodiode KODENSHI SP-8ML untuk Aplikasi Visible Light Communication," Unpublished.
[26] T.Adiono and S. Fuada, "Desain dan Implementasi LED Driver Linier untuk Aplikasi Visible Light Communication," Unpublished
[27] S. Fuada, A.P. Putra, and T. Adiono, "Short-range Audio Transfer through 3 Watt White LED based on LOS channels," Unpublished.
[28] T. Adiono, S. Fuada, and A. P. Putra, "LED Driver Design for Indoor Lighting and Low-rate Data Transmission Purpose," Unpulished.
[29] T. Adiono, S. Fuada, and R.A. Saputro, "Automatic Gain Control Circuit for Mobility Visible Light Communication System using LM13700" Unpublished.