Abstract
This paper proposes an LED back-off optimization method for visible light wireless communications. The method changes the set back-off value and controls LED saturation according to Noise-to-Carrier power ratios (N/C) of a receiver. Signal-to-Noise and Distortion Ratio (SNDR) of a receiver with the proposed method is evaluated by computer simulation. In this evaluation, a wireless system with OFDM signals is assumed and an LED linearization method which uses clipping followed by inband filtering and pre-distortion is employed. The evaluation results show that the back-off optimization can improve transmission quality in a receiver. The result also shows that the linearization method can enhance the improvement.
| Original language | English |
|---|---|
| Title of host publication | Proceedings - 20th International Symposium on Wireless Personal Multimedia Communications, WPMC 2017 |
| Publisher | IEEE Computer Society |
| Pages | 229-233 |
| Number of pages | 5 |
| Volume | 2017-December |
| ISBN (Electronic) | 9781538627679 |
| DOIs | |
| Publication status | Published - Feb 22 2018 |
| Event | 20th International Symposium on Wireless Personal Multimedia Communications, WPMC 2017 - Bali, Indonesia Duration: Dec 17 2017 → Dec 20 2017 |
Other
| Other | 20th International Symposium on Wireless Personal Multimedia Communications, WPMC 2017 |
|---|---|
| Country | Indonesia |
| City | Bali |
| Period | 12/17/17 → 12/20/17 |
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Keywords
- Back-off
- LED
- Non-linear distortion compensation
- Saturation control
- Visible light communication
ASJC Scopus subject areas
- Computer Networks and Communications
- Computer Science Applications
- Human-Computer Interaction
Cite this
Transmission quality improvement by LED back-off optimization for visible light wireless communications. / Chikamori, Takahiro; Tomisato, Shigeru; Denno, Satoshi; Uehara, Kazuhiro.
Proceedings - 20th International Symposium on Wireless Personal Multimedia Communications, WPMC 2017. Vol. 2017-December IEEE Computer Society, 2018. p. 229-233.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Transmission quality improvement by LED back-off optimization for visible light wireless communications
AU - Chikamori, Takahiro
AU - Tomisato, Shigeru
AU - Denno, Satoshi
AU - Uehara, Kazuhiro
PY - 2018/2/22
Y1 - 2018/2/22
N2 - This paper proposes an LED back-off optimization method for visible light wireless communications. The method changes the set back-off value and controls LED saturation according to Noise-to-Carrier power ratios (N/C) of a receiver. Signal-to-Noise and Distortion Ratio (SNDR) of a receiver with the proposed method is evaluated by computer simulation. In this evaluation, a wireless system with OFDM signals is assumed and an LED linearization method which uses clipping followed by inband filtering and pre-distortion is employed. The evaluation results show that the back-off optimization can improve transmission quality in a receiver. The result also shows that the linearization method can enhance the improvement.
AB - This paper proposes an LED back-off optimization method for visible light wireless communications. The method changes the set back-off value and controls LED saturation according to Noise-to-Carrier power ratios (N/C) of a receiver. Signal-to-Noise and Distortion Ratio (SNDR) of a receiver with the proposed method is evaluated by computer simulation. In this evaluation, a wireless system with OFDM signals is assumed and an LED linearization method which uses clipping followed by inband filtering and pre-distortion is employed. The evaluation results show that the back-off optimization can improve transmission quality in a receiver. The result also shows that the linearization method can enhance the improvement.
KW - Back-off
KW - LED
KW - Non-linear distortion compensation
KW - Saturation control
KW - Visible light communication
UR - http://www.scopus.com/inward/record.url?scp=85045878325&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85045878325&partnerID=8YFLogxK
U2 - 10.1109/WPMC.2017.8301814
DO - 10.1109/WPMC.2017.8301814
M3 - Conference contribution
AN - SCOPUS:85045878325
VL - 2017-December
SP - 229
EP - 233
BT - Proceedings - 20th International Symposium on Wireless Personal Multimedia Communications, WPMC 2017
PB - IEEE Computer Society
ER -