Cramer-Rao bound for AOA-based VLP with an aperture-based receiver

Publication Type:
Conference Proceeding
Citation:
IEEE International Conference on Communications, 2017
Issue Date:
2017-07-28
Full metadata record
Files in This Item:
Filename Description Size
Cramer-Rao Bound for AOA-Based VLP with an.pdfPublished version219.81 kB
Adobe PDF
© 2017 IEEE. Visible light positioning (VLP) for indoor applications has recently received considerable attention. In this paper, an aperture based receiver is considered and the position is estimated based on the angle-of-arrival (AOA), because the AOA can be determined by comparing the relative differences in the received signal strengths (RSS) in the different photodiodes (PDs) of the receiver. Hence, in contrast to RSS based positioning solutions, knowledge of the transmitted signal strengths is not required. The performance of the proposed approach depends on the transmitted signal strength only through the dependency on the signal-to-noise ratio. To evaluate the accuracy of the estimates of the AOA, we derive the Cramer-Rao lower bound, and show that the expected error on the AOA is very small. Applying triangulation to determine the position of the receiver, it follows that centimetre accuracy can be obtained with the aperture-based receiver.
Please use this identifier to cite or link to this item: