Wireless CAN communications based on white LED

In this paper, optical wireless communication systems based on a controller area network (CAN) are proposed and demonstrated. The optical transceiver is composed of 25 LED's array around plus 3 PDs in the center and two CAN transceivers. By means of that, the conventional two-wired CAN bus replaces to the free-space optical channels. To ensure the full-duplex channel isolation, LED driving and PD receiving circuit have their own CAN transceiver, respectively. On-off keying was applied without observable flicker in the target modulation ranges. The performance of data transfer in our prototype shows up to 0.6 m range at the transmission rate of 200kbps.

[1]  Dominic C. O'Brien,et al.  Visible light communications: Challenges and possibilities , 2008, 2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications.

[2]  R. Perez-Jimenez,et al.  Low-Cost Diffuse Wireless Optical Communication System based on White LED , 2006, 2006 IEEE International Symposium on Consumer Electronics.

[3]  Masao Nakagawa,et al.  Integrated system of white LED visible-light communication and power-line communication , 2003, IEEE Trans. Consumer Electron..

[4]  Thomas Kamalakis,et al.  Visible-light communication system enabling 73 Mb/s data streaming , 2010, 2010 IEEE Globecom Workshops.

[5]  Thomas D. C. Little,et al.  Using LED Lighting for Ubiquitous Indoor Wireless Networking , 2008, 2008 IEEE International Conference on Wireless and Mobile Computing, Networking and Communications.