Measurements of MIMO indoor channels at 1800MHz with multiple indoor and outdoor base stations

Authors:
Laura García;Niklas Jaldén;Björn Lindmark;Per Zetterberg;Leandro de Haro
Affiliations:
Departamento de Senales, Sistemas Y Radiocommunicaciones, Universidad Politécnica de Madrid (UPM), Madrid, Spain;Signal Processing Lab., School of Electrical Engineering, Royal Institute of Technology (KTH), Stockholm, Sweden;Signal Processing Lab., School of Electrical Engineering, Royal Institute of Technology (KTH), Stockholm, Sweden;Signal Processing Lab., School of Electrical Engineering, Royal Institute of Technology (KTH), Stockholm, Sweden;Departamento de Senales, Sistemas Y Radiocommunicaciones, Universidad Politécnica de Madrid (UPM), Madrid, Spain
Venue:
EURASIP Journal on Wireless Communications and Networking
Year:
2007

Citing 3
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Abstract

This paper proposes several configurations for multiple base stations in indoor MIMO systems and compares their performance. The results are based on channel measurements realized with a MIMO testbed. The receiver was moved along several routes and floors on an office building. Both outdoor and indoor locations are considered for the transmitters or base stations, which allow the analysis of not only indoor but also outdoor-to-indoor environment. The use of 2 base stations with different system level combinations of the two is analyzed. We show that the 2 ×4 configuration with base station selection provides almost as good performance as a 4 × 4 full water-filling scheme when the 2 base stations are placed at different locations. Also the spatial correlation properties for the different configurations are analyzed and the importance of considering path loss when evaluating capacity is highlighte.