Optical wireless recharging model for wireless sensor nodes by using Corner Cube Retroreflectors (CCRs)

Authors:
M. I. Afzal;Shin Seoyong;Waqar Mahmood;S. M. Sajid
Affiliations:
Myongji University Korea;Myongji University Korea;University of Engineering and Technology, Lahore, Pakistan;National University of Computer and Emerging Sciences, Lahore, Pakistan
Venue:
Proceedings of the 2009 International Conference on Hybrid Information Technology
Year:
2009

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Abstract

Wireless Sensor Networks are included in today's important and evolving communication technologies. The size of sensors operating wirelessly decreases with the advent of advancement in device processing technologies like micro- and nano-electromechanical systems. This decrease in dimensions of sensors causes serious problem for battery storage capacity. We address this issue and propose a model of communication and recharging of Wireless Sensor Network (WSN) nodes simultaneously using passive optical communication. We propose both Line-of-Sight and Quasi-diffuse communication for this purpose. There are some situations where direct LOS is better option while at non-line-of-sight, the energy of a multi-spot Quasi-diffuse beam can be utilized. In our model we have used modified Corner Cube Retroreflector (CCR) and a newly proposed device Thinfilm Corner Cube Retroreflector (TCCR) for passive communication and recharging sensor nodes. These devices have large angle of diversity due to which they can provide communication facility to large areas. Our analysis shows that the proposed model could show better performance and significant increase in network life time.