Performance evaluation of optical wireless identification scheme employing thinfilm corner cube retroreflector

This paper presents an optical wireless identification (OWID) scheme utilizing high-energy harvesting thinfilm embedded onto the corner cube retroreflector (CCR). We apply optical wireless communication (OWC) for transmitting information. The thinfilm is used as a rechargeable battery that absorbs the power when the incident light beam goes through the CCR and reflects On-Off-Keying (OOK) modulated signals back to the reader. The energy harvested during the transmission is used to drive the CCR inside the tag to modulate the OWC signals back to the reader. The proposed system is proved to be more secure and having much higher available stored energy. The performance of the proposed scheme is evaluated based on the simulations and the results are discussed. According to the simulations, by using a 550nm wavelength with 0.4W of the transmitted power, the scheme achieves a data rate of 100bps and about 0.19W of the harvested power while the communication distance is up to 0.25m.