Ranging in a single-input multiple-output (SIMO) system
Date
2008
Authors
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Instructor
Source Title
IEEE Communications Letters
Print ISSN
1089-7798
Electronic ISSN
1558-2558
Publisher
Institute of Electrical and Electronics Engineers
Volume
12
Issue
3
Pages
197 - 199
Language
English
Type
Journal Title
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Abstract
In this letter, optimal ranging in a single-input multiple-output (SIMO) system is studied. The theoretical limits on the accuracy of time-of-arrival (TOA) (equivalently, range) estimation are calculated in terms of the Cramer-Rao lower bound (CRLB). Unlike the conventional phased array antenna structure, a more generic fading model is employed, which allows for the analysis of spatial diversity gains from the viewpoint of a ranging system. In addition to the optimal solution, a two-step suboptimal range estimator is proposed, and its performance is compared with the CRLBs.