| Authors |
H. Okada, T. Ishizaki, T. Yamazato, T. Yendo, T. Fujii |
| Title |
Erasure Coding for Road-to-Vehicle Visible Light Communication Systems |
| Authority |
IEEE Intelligent Vehicular Communications System Workshop, pp.970-974 |
| Summary |
In this paper, we focus on a road-to-vehicle visible light communication
(VLC) system using LED traffic lights. In this system, an LED traffic
light consists of a 2-dimensional LED array (2D LED array), and cars
are equipped with high-speed 2-dimensional cameras (2D image
sensors). An important issue of this system is frame loss. Sometimes,
2D image sensor in a car fails to get a frame. So as to mitigate the
influence of frame loss, we propose to apply erasure coding to the
road-to-vehicle VLC system. In the proposed system, a data sequence is
encoded by LDPC code whose length is much longer than the size of 2D
LED array. In addition, code synchronization is required for the
proposed system. We also propose a code synchronization scheme, which
makes use of error detection capability of LDPC code. We evaluate the
performance of our proposed system, and show that it can recover frame
loss for high SNR when less than 8 frames among total 18 frames are
lost. In addition, we show that our proposed code synchronization
scheme can ignore its errors. |
| 年月 |
2011年1月 |
| DOI/Handle |
DOI:10.1109/CCNC.2011.5766593
|
| 開催場所 |
Las Vegas, USA |
| 研究テーマ |
可視光通信／光無線通信
高度交通システム（ＩＴＳ）
|
| 言語 |
英語 |
| 原稿/プレゼン資料 |
 /  (ローカル限定) |
