Elevation extension for a geometry-based radio channel model and its influence on MIMO antenna correlation and gain imbalance

This paper presents a complete set of elevation propagation parameters for a geometry-based radio channel model, and shows how the extension to elevation dimension affects MIMO performance. The figures of merit in MIMO performance are correlation and gain imbalance between the branches of the antenna array. The simulation and measurement results show a significant difference between antenna correlations in the case where the elements are on top of one another. Thus, the elevation gives an extra value for channel models to be used in the MIMO antenna performance tests.

[1]  Matti H. A. J. Herben,et al.  Analysis of Clustered Multipath Estimates in Physically Nonstationary Radio Channels , 2007, 2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications.

[2]  Pekka Kyosti,et al.  MIMO OTA test concept with experimental and simulated verification , 2010, EuCAP 2010.

[3]  M. B. Knudsen,et al.  Spherical outdoor to indoor power spectrum model at the mobile terminal , 2002, IEEE J. Sel. Areas Commun..

[4]  Takada Jun-ichi,et al.  Full polarimetric 3-D double directional channel measurement in a NLOS macrocellular environment , 2005 .

[5]  E. Bonek,et al.  High-resolution 3-D direction-of-arrival determination for urban mobile radio , 1997 .

[6]  Buon Kiong Lau,et al.  Impact of spacing and gain imbalance between two dipoles on HSPA throughput performance , 2009 .

[7]  Ernst Bonek,et al.  3-D double-directional radio channel characterization for urban macrocellular applications , 2003 .

[8]  Jun-ichi Takada,et al.  Mobile Station Spatio-Temporal Multipath Clustering of an Estimated Wideband MIMO Double-Directional Channel of a Small Urban 4.5 GHz Macrocell , 2009, EURASIP J. Wirel. Commun. Netw..

[9]  Mhaj Matti Herben,et al.  Spatial dispersion and performance evaluation of indoor MIMO channels at 2.25 GHz , 2004 .

[10]  Lassi Hentila,et al.  WINNER II Channel Models , 2009 .

[11]  Hoai An Le Thi,et al.  MIMO OTA test concept with experimental and simulated verification , 2010, Proceedings of the Fourth European Conference on Antennas and Propagation.

[12]  Ernst Bonek,et al.  Wideband 3D characterization of mobile radio channels in urban environment , 2002 .

[13]  R.G. Vaughan,et al.  Antenna diversity in mobile communications , 1987, IEEE Transactions on Vehicular Technology.

[14]  V. Erceg,et al.  TGn Channel Models , 2004 .

[15]  Outi Kivekäs,et al.  Angular power distribution and mean effective gain of mobile antenna in different propagation environments , 2002, IEEE Trans. Veh. Technol..

[16]  H. Asplund,et al.  MIMO channel characteristics in a small macrocell measured at 5.25 GHz and 200 MHz bandwidth , 2005, VTC-2005-Fall. 2005 IEEE 62nd Vehicular Technology Conference, 2005..