Open Access

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

  • Laura García1Email author,
  • Niklas Jaldén2,
  • Björn Lindmark2,
  • Per Zetterberg2 and
  • Leandro de Haro1
EURASIP Journal on Wireless Communications and Networking20072007:028073

DOI: 10.1155/2007/28073

Received: 1 April 2006

Accepted: 17 December 2006

Published: 25 February 2007


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.


Authors’ Affiliations

Departamento de Sĕnales, Sistemas Y Radiocommunicaciones, Universidad Politécnica de Madrid (UPM)
Signal Processing Lab, School of Electrical Engineering, Royal Institute of Technology (KTH)


  1. Telatar IE: Capacity of multi-antenna Gaussian channels. In Internal Technical Memo. AT&T Bell Laboratories, Murray Hill, NJ, USA; 1995.Google Scholar
  2. Svantesson T, Wallace J: On signal strength and multipath richness in multi-input multi-output systems. Proceedings of IEEE International Conference on Communications (ICC '03), May 2003, Anchorage, Alaska, USA 4: 2683-2687.Google Scholar
  3. Molisch AF, Steinbauer M, Toeltsch M, Bonek E, Thomä RS: Capacity of MIMO systems based on measured wireless channels. IEEE Journal on Selected Areas in Communications 2002,20(3):561-569. 10.1109/49.995515View ArticleGoogle Scholar
  4. Batariere MD, Blankenship TK, Kepler JF, et al.: Wideband MIMO mobile impulse response measurements at 3.7 GHz. Proceedings of the 55th IEEE Vehicular Technology Conference (VTC '02), May 2002, Birmingham, Ala, USA 1: 26-30.Google Scholar
  5. Wallace JW, Jensen MA: Measured characteristics of the MIMO wireless channel. Proceedings of the 54th IEEE Vehicular Technology Conference (VTC '01), October 2001, Atlantic City, NJ, USA 4: 2038-2042.Google Scholar
  6. Fügen T, Kuhnert C, Maurer J, Wiesbeck W: Performance of multiuser MIMO systems under realistic propagation conditions. Proceedings of ITG Workshop on Smart Antennas, March 2004, Munich, Germany 167-173.View ArticleGoogle Scholar
  7. Schumacher L, Berger LT, Ramiro-Moreno J: Recent advances in propagation characterisation and multiple antenna processing in the 3GPP framework. Proceedings of the 26th URSI General Assembly, August 2002, Maastricht, The NetherlandsGoogle Scholar
  8. Kermoal JP, Schumacher L, Pedersen KI, Mogensen PE, Frederiksen F: A stochastic MIMO radio channel model with experimental validation. IEEE Journal on Selected Areas in Communications 2002,20(6):1211-1226. 10.1109/JSAC.2002.801223View ArticleGoogle Scholar
  9. Wyne S, Almers P, Eriksson G, Karedal J, Tufvesson F, Molisch AF: Outdoor to indoor office MIMO measurements at 5.2 GHz. Proceedings of the 60th IEEE Vehicular Technology Conference (VTC '04), September 2004, Los Angeles, Calif, USA 1: 101-105.Google Scholar
  10. Medbo J, Riback M, Asplund H, Berg J: MIMO channel characteristics in a small macrocell measured at 5.25 GHz and 200 MHz bandwidth. Proceedings of the 62nd IEEE Vehicular Technology Conference (VTC '05), September 2005, Dallas, Tex, USA 1: 372-376.Google Scholar
  11. García-García L, Gómez-Calero C, Mora-Cuevas J, Martínez-Rodríguez-Osorio R, de Haro-Ariet L: Comparison of MIMO single and multi-polarized measured channels in indoor WLAN scenarios. Proceedings of the 1st European Conference on Antennas and Propagation (EuCAP '06), November 2006, Nice, France (ESA SP-626Google Scholar
  12. Samuelsson D, Jaldén J, Zetterberg P, Ottersten B: Realization of a spatially multiplexed MIMO system. EURASIP Journal on Applied Signal Processing 2006, 2006: 16 pages.MATHGoogle Scholar
  13. Zetterberg P: Wireless development laboratory (WIDELAB) equipment base. In Tech. Rep. S3-SB-0316. Signals, Sensors and Systems (KTH), Stockholm, Sweden; 2003. http://www.s3.kth.seGoogle Scholar
  14. García-García L, Lindmark B, Orlenius C: Design and evaluation of a compact antenna array for MIMO applications. Proceedings of IEEE Antennas and Propagation Society International Symposium, July 2006, Albuquerque, NM, USA 313-316.Google Scholar
  15. Lindmark B, Jaldén N, Zetterberg P, et al.: Antenna technology for reconfigurable multiple antenna terminals. In Final Report WP 223. Antenna Center of Excellence (European Commission - 6th Framework Programme), Goteborg, Sweden; 2005. http://www.antennasvce.orgGoogle Scholar
  16. Adachi F, Feeney MT, Williamson AG, Parsons JD: Crosscorrelation between the envelopes of 900 MHz signals received at a mobile radio base station site. IEE proceedings 1986,133(6):506-512.Google Scholar
  17. McFadden J: The correlation function of a sine wave plus noise after extreme clippings. IEEE Transactions on Information Theory 1956,2(2):82-83. 10.1109/TIT.1956.1056789View ArticleGoogle Scholar
  18. Pierce JN, Stein S: Multiple diversity with nonindependent fading. Proceedings of the IRE 1960, 48: 89-104.View ArticleGoogle Scholar
  19. Özcelik H, Herdin M, Weichselberger W, Wallace J, Bonek E: Deficiencies of 'Kronecker' MIMO radio channel model. Electronics Letters 2003,39(16):1209-1210. 10.1049/el:20030785View ArticleGoogle Scholar
  20. Chizhik D, Foschini GJ, Valenzuela RA: Capacities of multi-element transmit and receive antennas: correlations and keyholes. Electronics Letters 2000,36(13):1099-1100. 10.1049/el:20000828View ArticleGoogle Scholar
  21. Kassouf M, Leib H: Shannon capacity and eigen-beamforming for space dispersive multipath MIMO channels. Proceedings of IEEE Wireless Communications and Networking (WCNC '03), March 2003, New Orleans, La, USA 1: 156-161.Google Scholar


© Laura García et al. 2007

This article is published under license to BioMed Central Ltd. 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.