Title :
Ranging in a Single-Input Multiple-Output (SIMO) System
Author :
Gezici, Sinan ; Sahinoglu, Zafer
Author_Institution :
Bilkent Univ., Ankara
fDate :
3/1/2008 12:00:00 AM
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.
Keywords :
MIMO communication; antenna phased arrays; fading channels; time-of-arrival estimation; Cramer-Rao lower bound; SIMO system; generic fading model; phased array antenna; single-input multiple-output system; spatial diversity; time-of-arrival estimation; Antenna arrays; Baseband; Fading; MIMO; Maximum likelihood estimation; Phased arrays; Radar antennas; Radar applications; Receiving antennas; Signal processing;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2008.071691
