Fundamental limits on RSS based range estimation in visible light positioning systems
Date
2015-12
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Source Title
IEEE Communications Letters
Print ISSN
1089-7798
Electronic ISSN
Publisher
IEEE
Volume
19
Issue
12
Pages
2138 - 2141
Language
English
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Abstract
In this study, theoretical limits are obtained for the accuracy of range (distance) estimation in visible light positioning (VLP) systems. In particular, the Ziv-Zakai bound (ZZB) and the weighted Cramer-Rao bound (WCRB) are derived ยด for range estimation based on received signal strength (RSS) measurements. Also, the maximum a posteriori probability (MAP) and the minimum mean-squared error (MMSE) estimators are obtained for RSS based range estimation, and compared against the theoretical limits.