This article is part of the series Space-Time Channel Modeling for Wireless Communications.

Open Access Research Article

Measurements of MIMO Indoor Channels at 1800 MHz with Multiple Indoor and Outdoor Base Stations

Laura García1*, Niklas Jaldén2, Björn Lindmark2, Per Zetterberg2 and Leandro de Haro1

Author Affiliations

1 Departamento de Sĕnales, Sistemas Y Radiocommunicaciones, Universidad Politécnica de Madrid (UPM), Madrid 28040, Spain

2 Signal Processing Lab, School of Electrical Engineering, Royal Institute of Technology (KTH), Stockholm 100 44, Sweden

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EURASIP Journal on Wireless Communications and Networking 2007, 2007:028073 doi:10.1155/2007/28073


The electronic version of this article is the complete one and can be found online at: http://jwcn.eurasipjournals.com/content/2007/1/028073


Received:1 April 2006
Revisions received:5 November 2006
Accepted:17 December 2006
Published:25 February 2007

© 2007 García et al.

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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 configuration with base station selection provides almost as good performance as a 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 highlighted.

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