Abstract
Although there are enormous available bandwidths for license-free visible light communication (VLC), a relatively narrow modulation bandwidth of LED is still an obstacle for further application. The carrierless amplitude and phase (CAP) modulation is a high spectral efficiency modulation technology which has begun to draw more attention in recent years. However, to meet the illumination of indoor VLC, the nonlinear interference is quite serious because of multipath fading channels. Thus, the spectrum efficiency of VLC with CAP modulation is greatly limited by these nonlinear effects. In this paper, the nonlinear distortion of indoor VLC systems, which was introduced by the nonlinearity of analog device and multipath fading channel, has been analyzed. Therefore, the problem we are trying to solve is to study an adaptive digital equalizer at CAP modulation which can efficiently mitigate nonlinearity of indoor VLC. The simulation result shows that the adaptive digital decision-feedback equalizer is an effective solution that can mitigate inter-symbol interference and improve the receiver performance efficiently.
| Original language | English |
|---|---|
| Article number | SJJA02 |
| Journal | Japanese Journal of Applied Physics |
| Volume | 58 |
| Issue number | SJ |
| DOIs | |
| Publication status | Published - Jan 1 2019 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
- Physics and Astronomy(all)
Cite this
Nonlinear compensation for indoor visible light communication systems with carrierless amplitude and phase modulation. / Che, Ming; Kuboki, Takeshi; Kato, Kazutoshi.
In: Japanese Journal of Applied Physics, Vol. 58, No. SJ, SJJA02, 01.01.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Nonlinear compensation for indoor visible light communication systems with carrierless amplitude and phase modulation
AU - Che, Ming
AU - Kuboki, Takeshi
AU - Kato, Kazutoshi
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Although there are enormous available bandwidths for license-free visible light communication (VLC), a relatively narrow modulation bandwidth of LED is still an obstacle for further application. The carrierless amplitude and phase (CAP) modulation is a high spectral efficiency modulation technology which has begun to draw more attention in recent years. However, to meet the illumination of indoor VLC, the nonlinear interference is quite serious because of multipath fading channels. Thus, the spectrum efficiency of VLC with CAP modulation is greatly limited by these nonlinear effects. In this paper, the nonlinear distortion of indoor VLC systems, which was introduced by the nonlinearity of analog device and multipath fading channel, has been analyzed. Therefore, the problem we are trying to solve is to study an adaptive digital equalizer at CAP modulation which can efficiently mitigate nonlinearity of indoor VLC. The simulation result shows that the adaptive digital decision-feedback equalizer is an effective solution that can mitigate inter-symbol interference and improve the receiver performance efficiently.
AB - Although there are enormous available bandwidths for license-free visible light communication (VLC), a relatively narrow modulation bandwidth of LED is still an obstacle for further application. The carrierless amplitude and phase (CAP) modulation is a high spectral efficiency modulation technology which has begun to draw more attention in recent years. However, to meet the illumination of indoor VLC, the nonlinear interference is quite serious because of multipath fading channels. Thus, the spectrum efficiency of VLC with CAP modulation is greatly limited by these nonlinear effects. In this paper, the nonlinear distortion of indoor VLC systems, which was introduced by the nonlinearity of analog device and multipath fading channel, has been analyzed. Therefore, the problem we are trying to solve is to study an adaptive digital equalizer at CAP modulation which can efficiently mitigate nonlinearity of indoor VLC. The simulation result shows that the adaptive digital decision-feedback equalizer is an effective solution that can mitigate inter-symbol interference and improve the receiver performance efficiently.
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UR - http://www.scopus.com/inward/citedby.url?scp=85072819009&partnerID=8YFLogxK
U2 - 10.7567/1347-4065/ab1fd8
DO - 10.7567/1347-4065/ab1fd8
M3 - Article
AN - SCOPUS:85072819009
VL - 58
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - SJ
M1 - SJJA02
ER -