| Authors |
H. Okada, S. Misawa, T. Yamazato, T. Fujii, T. Yendo |
| Title |
Channel Information Estimation for Error Correcting Code in Road-to-Vehicle Visible Light Communication Systems |
| Authority |
IEEE International Symposium on Wireless Vehicular Communications (WiVeC) |
| Summary |
This paper focuses on a road-to-vehicle visible light communication
(VLC) system using LED traffic lights and high-speed cameras on
cars. So as to improve the transmission reliability, an error
correcting code like a low-density parity-check (LDPC) is applied to
the road-to-vehicle VLC system. The decoder of the LDPC code needs
channel information in order to maximize decoding performance. Usually,
it is calculated from a signal-to-noise ratio (SNR) or bit error rate
(BER) of a channel, where noise is a dominant factor of the channel
characteristic. In the road-to-vehicle VLC system, not noise but
interference among LEDs decides the channel characteristic. In this
paper, we propose a channel information estimation method for the
road-to-vehicle VLC system. The proposed method estimates a
signal-to-interference ratio (SIR) from the receiving image, and
calculates the channel information using the SIR. The proposed method
is evaluated by experiment. As a result, the proposed method can
achieve almost the same performance with the optimum case, and then
maximize the decoding performance. |
| 年月 |
2013年6月 |
| DOI/Handle |
DOI:10.1109/wivec.2013.6698229
|
| 開催場所 |
Dresden, Germany |
| 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) |
