Ranging in a Single-Input Multiple-Output (SIMO) System
| Citation: |
Gezici, S.; Sahinoglu, Z., "Ranging in a Single-Input Multiple Output (SIMO) System", IEEE Communications Letters, ISSN: 1089-7798, Vol. 12, Issue 3, pp. 197-199, March 2008 (IEEE Xplore) |
| MERL Report: | TR2008-055 |
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.
