JOURNAL OF COMMUNICATIONS (JCM)
ISSN : 1796-2021
Volume : 3    Issue : 5    Date : October 2008

MIMO Channel Sounder at 3.5 GHz: Application to WiMAX System
Hanna Farhat, Guy Grunfelder, Alvaro Carcelen, and Ghaïs El Zein
Page(s): 23-30
Full Text:
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Abstract
The use of antenna arrays at emission and reception seems to represent a prominent solution for
future wireless systems, it improves data rates and enhances the quality of service. The
performance of these systems depends mainly on the propagation channel. Therefore, channel’s
characterization and modeling are crucial. In this document, we present a MIMO (Multiple Input
Multiple Output) channel sounder at 3.5 GHz developed at IETR. One of the applications operating at
this frequency is the WiMAX system. Different antenna arrays architectures are designed and
calibrated at 3.5 GHz for high resolution MIMO channel sounding. Antenna arrays beam patterns are
measured and calibrated. The importance of this work is shown by ESPRIT simulations.
Propagation measurement results are needed to obtain realistic MIMO channel models.

Index Terms
Antenna arrays, radio propagation, wireless channel characterization and modeling, spatio-
temporal measurements, MIMO channel sounder.