Multiple input multiple output (MIMO) systems have influenced nearly any mobile communication standard. However, in many cases the theoretically possible potential can’t be reached since of the proximity of transmitter and receiver side antenna arrays. The phenomena called correlation affects the channel capacity and the link BER (biterror rate). Therefore in this paper receiver-side antennas correlation and its modelling are investigated. Together with the appropriate signal processing (e. g. singular values decomposition), the effect of receiver-side antennas correlation is studied. Our results show that under the effect of correlation not necessarily all layers might be used for the data transmission since the weighting of the stronger layer within the MIMO system becomes even more stronger. Simulation results are shown to underline these effects and the benefits of using appropriate power distribution strategies.
[1]
Hao Wang,et al.
How Does Correlation Affect the Capacity of MIMO Systems with Rate Constraints?
,
2009,
GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference.
[2]
Claude Oestges,et al.
Validity of the Kronecker Model for MIMO Correlated Channels
,
2006,
2006 IEEE 63rd Vehicular Technology Conference.
[3]
Theodore S. Rappaport,et al.
Overview of spatial channel models for antenna array communication systems
,
1998,
IEEE Wirel. Commun..
[4]
W.C.-Y. Lee.
Effects on Correlation Between Two Mobile Radio Base-Station Antennas
,
1973,
IEEE Trans. Commun..
[5]
Andreas Ahrens,et al.
Modulation-Mode and Power Assignment in SVD-Equalized MIMO Systems
,
2008
.