Physical layer design with analog front end for bidirectional DCO-OFDM visible light communications

被引：8

作者：

Adiono, Trio ^{[1
]}

Pradana, Angga ^{[1
]}

Putra, Rachmad Vidya Wicaksana ^{[1
]}

Cahyadi, Willy Anugrah ^{[2
]}

Chung, Yeon Ho ^{[2
]}

机构：

[1] ITB, Sch Elect Engn & Informat, Dept Elect Engn, Bandung 40132, Indonesia

[2] Pukyong Natl Univ, Dept Informat & Commun Engn, Busan, South Korea

来源：

OPTIK | 2017年 / 138卷

基金：

新加坡国家研究基金会;

关键词：

Analog front-end design; Visible light communication; Physical layer; DCO-OFDM; WHITE LEDS;

D O I：

10.1016/j.ijleo.2017.03.046

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Visible light communication (VLC) is a promising wireless communication technology that utilizes existing lighting system infrastructure. This paper presents the bidirectional VLC physical layer design that supports both pulse width modulation (PWM) and direct current biased optical orthogonal frequency division multiplexing (DCO-OFDM) for downlink, and an infrared pulse position modulation (PPM) for uplink. The physical layer consists of an analog front end (AFE) and digital signal processing (DSP) circuits on both the transmitter and the receiver. The AFE circuit on the receiver is specifically designed to compensate for impairments in optical channels, such as ambient light and uneven distribution of light intensity. The evaluation results show that the designed AFE circuit minimizes the interference in the receiver without increasing the TX power. In addition, the PWM is found to be more robust in the optical channel than the DCO-OFDM. In respect of data transmission rate, however, it is observed that the DCO-OFDM is superior to the PWM; namely, the DCO-OFDM modulation using quadrature phase shift keying (QPSK) attains a data rate of 26.8 kbps, while the 2-PWM modulation achieves a data rate of 6.2 kbps. (C) 2017 Elsevier GmbH. All rights reserved.

引用

页码：103 / 118

页数：16

共 15 条

[1]

Adiono T., 2016, 13 IEEE AS C CIRC SY

[2]

Afgani M. Z., 2006, E INT C TESTB RES IN, P6

[3]

Ali AY, 2014, 2014 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS (ICEAA), P546, DOI 10.1109/ICEAA.2014.6903918

[4] OFDM visible light wireless communication based on white LEDs [J].

Elgala, H. ;

Mesleh, R. ;

Haas, H. ;

Pricope, B. .

2007 IEEE 65TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-6, 2007, :2185-2189

[5] Indoor Broadcasting via White LEDs and OFDM [J].

Elgala, Hany ;

Mesleh, Raed ;

Haas, Harald .

IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, 2009, 55 (03) :1127-1134

[6]

Gayatri S., 2015, 2015 INT C EL EL SIG, P1

[7]

Jia Y., 2014, 2014 12 INT C OPT IN, P1

[8]

Macias A., 2012, IEEE INT S ALT EN EN, P1

[9] Modeling the radiation pattern of LEDs [J].

Moreno, Ivan ;

Sun, Ching-Cherng .

OPTICS EXPRESS, 2008, 16 (03) :1808-1819

[10]

Pradana A, 2015, I S INTELL SIG PROC, P368, DOI 10.1109/ISPACS.2015.7432798

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