Rancang Bangun Sistem Komunikasi Cahaya Tampak Dengan Modulasi 2-PWM Berbasis Mikrokontroller

Adiono, Trio; Pradana, Angga

doi:10.24089/j.sisfo.2018.09.001

Cited by 10 publications

(6 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Penulis meninjau bahwa keterbatasan kecepatan transfer data disebabkan oleh dua hal, yakni faktor penggunaan modulasi dan pemilihan komponen-komponen untuk hardware sistem VLC. Penelitian lanjutan telah berhasil membuktikan bahwa peningkatan modulasi (menggunakan 2-PWM) dapat mempercepat laju data (data rate) sebesar dua kali lipat, yakni 6,2 kbps [6]. Variasi PWM seperti 3-PWM atau 4-PWM sebagai pembawa data tidak mudah dilakukan, sehingga upaya lain untuk meningkatkan laju data adalah memanfaatkan modulasi multi-carrier.…”

Section: Pendahuluanunclassified

See 1 more Smart Citation

Desain dan Implementasi Real-Time Visible Light Communication System Berbasis BPSK

Adiono

2019

ELINVO

Self Cite

View full text Add to dashboard Cite

In previous studies, the author has successfully designed a low-cost VLC system with digital modulation, i.e., signel pulse width modulation (1-PWM) with bit-rate of 3.3 kbps and 2-PWM (6.2 kbps). This research motivation is to increase the data rate of the VLC system by OFDM. The Binary shift-keying modulation (BPSK) modulation was selected as a Mapper (Demodulator). As for the VLC system hardware, the authors utilize previous research. Hence, this research is limited to proof-of-concept (POC) to verify that BPSK modulation is faster than 1-PWM and 2-PWM. The test results show that BPSK modulation has twice transfer rate speed compared to 2-PWM, which is 13.4 kbps. Other tests performed are Bit-Error-Rate (BER) measurement with variations in optical channel distance and reception angle.

show abstract

Section: Pendahuluanunclassified

“…Salah Hasil pengukuran BER untuk beberapa jarak LED-Photodiode ditunjukkan pada Gambar 7. Skenario pengujian sama seperti [5], [6]. Nilai BER pada sistem VLC dengan modulasi BPSK lebih besar dibandingkan dengan modulasi 1-PWM dan 2-PWM.…”

Section: Pendahuluanunclassified

Desain dan Implementasi Real-Time Visible Light Communication System Berbasis BPSK

Adiono

2019

ELINVO

Self Cite

View full text Add to dashboard Cite

show abstract

“…Dilakukan juga demonstrasi streaming berupa konten text dari PC ke PC via cahaya tampak dengan modulasi yang berbeda. Berdasarkan evaluasi, sistem komunikasi data downlink secara real-time tersebut mempunyai bit-rate sebesar 3,3 kbps untuk modulasi 1-PWM [12], [13], 6,2 kbps untuk modulasi 2-PWM [14], kemudian 13,4 kbps untuk modulasi BPSK [15] dan 26,8 kbps untuk modulasi QPSK [16]. Keterbatasan transfer data tersebut menjadikan sistem VLC yang telah direalisasikan hanya dapat mengirimkan data-data ukuran kecil.…”

Section: Pendahuluanunclassified

Implementasi Perangkat Digital Signal Processing Untuk Sistem Visible Light Communication

Putra¹,

Aska²,

Pradana³

et al. 2018

J. Iim. Tek. Elektro

Self Cite

View full text Add to dashboard Cite

In order to realize a high-speed visible light communication (VLC) system, digital signal processing (DSP) device is required, including the main processing unit, DAC, and ADC. This paper discusses the interface design of the DSP processing unit to 10-bit DAC and 12-bit ADC for VLC applications. The systems in DAC and ADC modules have been designed with a SoC- based approach by using processing unit based on FPGA Xilinx Zynq xc7z010-1CLG400C on the Avnet MicroZed board. The design of hardware-level-design (H/W SoC) is done by utilizing IP blocks from Xilinx using Vivado 2014.2. While the hardware-level-design (S/W SoC) is designed using Xilinx SDK 2014.2. The DSP receiver has been tested in several scenarios, the DAC module is able to convert 10-bit digital signals into analog signals in sinusoidal form and can adjust its output frequencies, while the ADC module is capable of processing the analog signals into 12-bit digital signals with two's complement format. Keywords: ADC, DAC, DSP, system on-chip, visible light communications Untuk mewujudkan sistem visible light communication dengan kecepatan tinggi, diperlukan perangkat DSP yang memadai, mencakup unit pemroses utama, DAC, dan ADC. Pada makalah ini dirancang interface dari pemroses utama terhadap DAC 10-bit dan ADC 12-bit untuk aplikasi sistem VLC. Sistem pada modul DAC dan ADC, dirancang dengan pendekatan system-on-chip (SoC) dengan menggunakan unit pemroses berbasis FPGA Xilinx Zynq xc7z010-1CLG400C pada board Avnet MicroZed. Perancangan H/W SoC dilakukan dengan memanfaatkan blok-blok IP dari Xilinx menggunakan Vivado 2014.2. Sementara pada S/W SoC dirancang dengan menggunakan Xilinx SDK 2014.2. Penerima DSP telah diuji dengan beberapa skenario, modul DAC mampu mengkonversi sinyal digital 10-bit menjadi analog dalam bentuk sinusiodal dan dapat diatur frekuensi outputnya, sedangkan modul ADC mampu mengolah sinyal analog menjadi sinyal digital 12-bit dengan format bilangan two’s complement. Kata kunci: ADC, DAC, DSP, Sistem on-Chip,visible light communication

show abstract

“…Many kinds of research have been conducted to enable this optical wireless communication technology. There are several interesting topics which are extensively discussed, such as: a. Modulation scheme: Pulse Width Modulation [4]- [7], Pulse Position Modulation [8], Binary Phase-shift Keying [9][10], Quadrature Phase-shift Keying [11], Quadrature Amplitude Modulation [12] and etc; b. Analog front-end (AFE) design: AFE circuit [13]- [14], analog filter circuits [15]- [16], automatic gain controller design [17]- [19], LED driver design [20]- [24], TIA [25], and etc. ; c. VLC's noise investigation: [26]- [28]; d. Digital signal processing (DSP): DSP prototyping [29], Viterbi encoder [30]- [31], system-on-chip (SoC) [32][33], and etc.…”

Section: Introductionmentioning

confidence: 99%

Noise and Bandwidth Consideration in Designing Op-Amp Based Transimpedance Amplifier for VLC

Adiono¹,

Putra²

2018

Bulletin EEI

Self Cite

View full text Add to dashboard Cite

In a visible light communication (VLC) system, there are many modules involved. One of the important modules is Transimpedance Amplifier (TIA) that resides in the analog front-end receiver (Rx-AFE). TIA is responsible for performing signal conversion from current signal, which is provided from the photodiode (PD) to voltage signal. It is the reason why the TIA should be operating in low noise condition and wide bandwidth of frequency. These will enable a flexible coverage of the VLC system in performing its signal processing. Hence, in this research, we provide considerations of the noise and frequency bandwidth analysis in designing TIA to cope with the required design specification of a VLC system.

show abstract

Rancang Bangun Sistem Komunikasi Cahaya Tampak Dengan Modulasi 2-PWM Berbasis Mikrokontroller

Cited by 10 publications

References 22 publications

Desain dan Implementasi Real-Time Visible Light Communication System Berbasis BPSK

Desain dan Implementasi Real-Time Visible Light Communication System Berbasis BPSK

Implementasi Perangkat Digital Signal Processing Untuk Sistem Visible Light Communication

Noise and Bandwidth Consideration in Designing Op-Amp Based Transimpedance Amplifier for VLC

Contact Info

Product

Resources

About