Optical Wireless Sensor Networks Based on VLC with PLC-Ethernet Interface

We present a white LED-based optical wireless communication systems for indoor ubiquitous sensor networks. Each sensor node could access to the server through the PLC (Power Line Communication)-Ethernet interface. The proposed system offers a full-duplex wireless link by using different wavelengths to reduce the inter-symbol interference between uplink and downlink. Through the 1-to-n optical wireless sensor network and PLC modem, the mobile terminals send a temperature data to server. The data transmission speed and distance are 115.2kbps and about 60cm, respectively.

Authors:

• Heejin Lee
• Yeonjoo Kim
• Kyungrak Sohn

Keywords:

• Visible light communications
• LED lighting
• powerline communications
• ubiquitous sensor networks
• full-duplex links

References:

[1] J. C. Chau, K. Matarese, and T. D. C. Little, "IP-enabled LED lighting
supporting indoor mobile and wireless communications," MobiSys 2010,
poster and Demonstration Program, San Francisco, CA, June, 2010, pp.
[2] T. D. C. Little, P. Dib, K. Shah, N. Barraford, and B. Gallagher, "Using
LED lighting ubiquitous indoor wireless networking," MCL Technical
Report, No. TR-05-20-2008, pp. 1- 13, 2008.
[3] O. Bouchet, et al "Visible-light communication system enabling 73Mb/s
data streaming,"IEEE Globecom 2010 Workshop on Optical Wireless
Communications, Miami, Florida, December, 2010.
[4] Visible Light Communications: Tutorials, IEEE 802.15 VLC SG, 2008. 3.
17.
[5] F. Delgado, Design and Implementation of an Ethernet-VLC Interface for
Broadcast Transmission, IEEE Communications letters vol. 4 no. 12,
2010. 12. 12.
[6] Jae-Jo Lee, Power line communication network trial and management in
KOREA: int. j. Network Mgnt 2006; 16: 443-457, DOI:10. 1002 /
nem.632
[7] K. R. Sohn, H. J. Lee, and Y. J. Kim, Wireless CAN communication
based on white LED, ICUFN 2011, pp. 127-130, 2011.
[8] Heejin Lee, Hiroyuki Yotsuyanagi, Kyungrak Sohn, Masaki Hasizume,
Feasibility of Operating Point Estimation in Lighting Circuit with
Measured I-V Characteristics of LEDs, ITC-CSCC2011, 2011. 6. 19.
[9] Heejin Lee, Hiroyuki Yotsuyanagi, Kyungrak Sohn, Masaki Hasizume,
Lighting Circuit Analysis Method with Measured I-V Characteristics of
LEDs, ITC-CSCC2010, 2010. 7. 3.