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Desain dan Implementasi Real-Time Visible Light Communication System Berbasis BPSK
Angga Pradana, Institut Teknologi Bandung, Indonesia
Syifaul Fuada, Microelectronics Center, Institut Teknologi Bandung, Indonesia
Yulian Aska, Institut Teknologi Bandung, Indonesia
Abstract
Salah satu teknik multiplexing yang saat ini populer digunakan untuk aplikasi akses komunikasi cepat berbasis cahaya tampak adalah Orthogonal Frequency Division Multiplexing (OFDM). Meskipun lebih kompleks dibandingkan modulasi berbasis Pulse Time Modulation (PTM), teknik OFDM disinyalir dapat lebih menghemat bandwidth komunikasi karena membagi bandwidth lebar menjadi spektrum yang sempit (sub-carrier) dan saling overlap. Sebagai akibat, transfer data akan lebih cepat dibandingkan PTM. Pada penelitian sebelumnya, penulis telah berhasil mendesain sistem low-cost VLC dengan modulasi digital 1-PWM (3,3 kbps) dan 2-PWM (6,2 kbps). Motivasi dari penelitian ini adalah menigkatkan laju data dengan menggunakan OFDM. Modulasi binary shift-keying modulation (BPSK) dipilih sebagai Mapper. Adapun hardware sistem VLC, penulis memanfaatkan penelitian yang sebelumnya sehingga penelitian ini sebatas proof-of-concept (POC) untuk membuktikan bahwa modulasi BPSK lebih cepat daripada 1-PWM dan 2-PWM. Hasil pengujian menunjukkan bahwa modulasi BPSK memiliki kecepatan dua kali lipat dibandingkan 2-PWM, yakni 13.4 kbps. Pengujian lain yang dilakukan adalah pengukuran Bit-error-rate (BER) dengan variasi jarak kanal optik dan sudut penerimaan.
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T. Adiono, S. Fuada, and S. Harimurti, “Bandwidth Budget Analysis for Visible Light Communication Systems utilizing Commercially Available Components,” Proc. of the 10thInt. Conf. on Electrical and Electronics Engineering (ELECO), pp. 1375-1380, December 2017.
S. Fuada and T. Adiono, “Visible Light Communication Kits for Educations,” J. of Education and Training, Vol. 5(2), pp. 39-49, May 2018.DOI: 10.5296/jet.v5i2.12578.
A. Burton, H.L. Minh, N. Aslam, and T.D. Nguyen, “LED based lighting and communications: An emerging technology for a greener more sustainable future,” EAI Endorsed Transactions on Energy Web, Vo. 4(13), pp. 1-6, 2017.
D. Karunatilaka, F. Zafar, V. Kalavally, and R. Parthiban, “LED based Indoor Visible Light Communications: State of the Art,” IEEE Communication Survey & Tutorials, Vol. 17(3), pp. 1649-1678, 2015.
T. Adiono, S. Fuada, and A. Pradana, “Desain dan Realisasi Sistem Komunikasi Cahaya Tampak untuk Streaming Teks berbasis PWM,” J. Setrum,Vol. 6(2), pp. 270-279, Desember 2017.
T. Adiono, A. Pradana, and S. Fuada “Rancang Bangun Sistem Komunikasi Cahaya Tampak dengan Modulasi 2-PWM berbasis Mikrokontroller,” Jurnal SISFO, 2018.
A. Pradana, “Rancang bangun layer fisik komunikasi cahaya tampak berbasis DC-OFDM dan PWM,” M.T. thesis, Dept. Elect. Eng., School of Electrical Engineering and Informatics, Institut Teknologi Bandung, Bandung, Indonesia, 2016.
T. Adiono, A. Pradana, and S. Fuada, “A Low-complexity of VLC System using BPSK,” Int. J. of Recent Contributions from Engineering,Science and IT (iJES), Vol. 6(1), pp. 99-106, 2018.
D. Astharini, A. Mayola, O.N. Samijayani, and A. Syahriar, “Analisa Kinerja Teknik Modulasi Digital pada Kanal Optik Nirkabel,” J. Elektronika dan Telekomunikasi (JET), Vol. 17(1), pp. 7-12, August 2017.
H. Malik, D.R. Rotake, and M. Mahajan, “Design and Implementation of BPSK Modulator and Demodulator using VHDL,” IOSR J. of Electronics and Communication Engineering, Vol. 9(3), pp. 98-105, 2014.
M. Sonmez and A. Akbal, “FPGA Based, Low Cost Modulators of BPSK and BFSK, Design and Comparison of Bit Error Rate over AWGN Channel,” GU J Sci, Vol. 26(2), pp. 207-213, 2013.
D.S. Suresh, R. Sekar, S. Tejaswini, and B.M. Ankitha, “Realization of Digital Modulation Techniques using TMS320C6748,” Proc. of Int. Conf. on Power, Control, Signals, and Instrumentation Engineering (ICPCSI), pp. 1576-1580, 2017.
T. Adiono, S. Fuada, and A. Pradana, “A Circuit for Robust Visible Light Communication Systems in Indoor Environment,” Proc. of the Int. Conf. on Information Technology and Electrical Engineering (ICITEE), July 2018.
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, October 2016.DOI: 10.1109/ISESD.2016.7886750.
S. Fuada, T. Adiono, A.P. Putra, Y. Aska, “LED Driver Design for Indoor Lighting and Low-rate Data Transmission Purpose, Optik-Int.J.for Light and Electron Optics, Vol. 156, pp. 847-856, 2018, DOI: https://doi.org/10.1016/j.ijleo.2017.11.180.
S. Fuada, “Design and Implementation of Analog Front-End Transceiver Module for Visible Light Communication System,” M.T. thesis, Dept. Elect. Eng., School of Electrical Engineering and Informatics, Institut Teknologi Bandung, Bandung, Indonesia, 2017.
T. Adiono and S. Fuada, “Desain dan Implementasi LED Driver Linier untuk Aplikasi Visible Light Communication,” Unpublished.
T. Adiono, Y. Aska, S. Fuada, and A.A. Purwita, “Design of an OFDM System for VLC with a Viterbi Decoder,” IEIE Transaction on Smart Processing and Computing (SPC), Vol. 6(6), pp. 455-465, December 2017. DOI: https://doi.org/10.5573/IEIESPC.2017.6.6.455.
A. Pradana, S. Fuada, and T. Adiono, “Desain dan Implementasi Sistem Visible Light Communication berbasis Pulse Width Modulation,” Majalah Ilmiah Teknologi Elektro, Vol. 17(2), pp. 237-243, 2018.
S. Fuada, A.P. Putra, and T. Adiono, “Analysis of Received Power Characteristics of Commercial Photodiodes in Indoor LoS Channel Visible Light Communication,” Int. J. of Advanced Computer Science and Applications (IJACSA), Vol. 8(7), pp. 164-172, July 2017. DOI: 10.14569/IJACSA.2017.080722.
DOI: https://doi.org/10.21831/elinvo.v3i2.21283
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