Effect of far scatterer clusters in MIMO outdoor channel models

We consider the clustering structure of wireless MIMO channels, and the impact that multiple clusters have on the performance of MIMO systems. We show that multiple clusters frequently occur in urban environments. We then proceed to demonstrate that a channel with multiple scatterer clusters behaves differently than a channel with one cluster and the same rms angular spread. The differences are quantified in terms of correlation coefficients, information-theoretic capacity, and interference-suppression capabilities. This demonstrates the necessity of correctly taking into account the clustering structure.

[1]  Ernst Bonek,et al.  A robust DOA-based smart antenna processor for GSM base stations , 1999, 1999 IEEE International Conference on Communications (Cat. No. 99CH36311).

[2]  M. J. Gans,et al.  On Limits of Wireless Communications in a Fading Environment when Using Multiple Antennas , 1998, Wirel. Pers. Commun..

[3]  D. Asztely,et al.  Modified array manifold for signal waveform estimation in wireless communications , 1996, Conference Record of The Thirtieth Asilomar Conference on Signals, Systems and Computers.

[4]  Björn E. Ottersten,et al.  Models for MIMO propagation channels: a review , 2002, Wirel. Commun. Mob. Comput..

[5]  Andreas F. Molisch,et al.  Spatial characterization of urban mobile radio channels , 2001, IEEE VTS 53rd Vehicular Technology Conference, Spring 2001. Proceedings (Cat. No.01CH37202).

[6]  Andreas F. Molisch,et al.  Clustering of scatterers in mobile radio channels-evaluation and modeling in the COST259 directional channel model , 2002, 2002 IEEE International Conference on Communications. Conference Proceedings. ICC 2002 (Cat. No.02CH37333).

[7]  A. Molisch,et al.  Unified channel model for mobile radio systems with smart antennas , 1998 .

[8]  W.C.-Y. Lee.  Effects on Correlation Between Two Mobile Radio Base-Station Antennas , 1973, IEEE Trans. Commun..

[9]  Klaus I. Pedersen,et al.  Spatial channel characteristics in outdoor environments and their impact on BS antenna system performance , 1998, VTC '98. 48th IEEE Vehicular Technology Conference. Pathway to Global Wireless Revolution (Cat. No.98CH36151).

[10]  P. Pajusco.  Experimental characterization of DOA at the base station in rural and urban area , 1998, VTC '98. 48th IEEE Vehicular Technology Conference. Pathway to Global Wireless Revolution (Cat. No.98CH36151).

[11]  Theodore S. Rappaport,et al.  Geometrical-based statistical macrocell channel model for mobile environments , 2002, IEEE Trans. Commun..

[12]  Chen-Nee Chuah,et al.  Capacity scaling in MIMO Wireless systems under correlated fading , 2002, IEEE Trans. Inf. Theory.

[13]  Jack H. Winters,et al.  On the Capacity of Radio Communication Systems with Diversity in a Rayleigh Fading Environment , 1987, IEEE J. Sel. Areas Commun..

[14]  Akbar M. Sayeed,et al.  Deconstructing multiantenna fading channels , 2002, IEEE Trans. Signal Process..

[15]  E. Bonek,et al.  Directional macro-cell channel characterization from urban measurements , 2000 .

[16]  U. Martin,et al.  Spatio-temporal radio channel characteristics in urban macrocells , 1998 .