Title :
Validity of spatial covariance matrices over time and frequency
Author :
Viering, Ingo ; Hofstetter, Helmu T. ; Utschick, Wolfgang
Author_Institution :
Siemens AG, Ulm, Germany
Abstract :
A MIMO channel measurement campaign with a moving mobile has been conducted in Vienna. The measured data will be used to investigate covariance matrices with respect to their dependence on time and frequency. This document focuses on the description of the evaluation techniques which will be applied to the measurement data in the future. The F-eigen-ratio is defined expressing the degradation due to out-dated covariance matrices. Illustrating the derived methods, first results based on the measured data are shown for a simple line-of-sight scenario.
Keywords :
covariance matrices; land mobile radio; radiowave propagation; F-eigen-ratio; MIMO channel measurement; Vienna; frequency dependence; frequency division duplex systems; frequency transform; line-of-sight scenario; measurement data; mobile channel; mobile communication systems; out-dated covariance matrices; spatial covariance matrices; time dependence; Antenna measurements; Circuit theory; Covariance matrix; Degradation; Frequency conversion; Frequency domain analysis; Frequency synchronization; Signal processing; Transmitters; Transmitting antennas;
Conference_Titel :
Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE
Print_ISBN :
0-7803-7632-3
DOI :
10.1109/GLOCOM.2002.1188198
