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/Territory | Indonesia |
| City | Bali |
| Period | 12/17/17 → 12/20/17 |
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