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Cramer-Rao bound for AOA-based VLP with an aperture-based receiver | IEEE Conference Publication | IEEE Xplore

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


Abstract:

Visible light positioning (VLP) for indoor applications has recently received considerable attention. In this paper, an aperture based receiver is considered and the posi...Show More

Abstract:

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.
Date of Conference: 21-25 May 2017
Date Added to IEEE Xplore: 31 July 2017
ISBN Information:
Electronic ISSN: 1938-1883
Conference Location: Paris, France

References

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