Abstract:
This paper extends a recently proposed space-time model for Rayleigh fading to include an arbitrary transmit antenna
configuration of any shape and size transmitting simultaneously in a multiple-input multiple-output (MIMO) channel.
The space-time correlation function and space-frequency cross spectrum function for a non-isotropic scatterer
distribution around the receiver is derived for the arbitrary configuration as a further extension of a previous result of a
multiple-input single-output Rayleigh wireless channel which used a ring of uniformly distributed scatterers model.
Analysis based on achievable spectral efficiency for typical arbitrary transmit antenna configurations is given. The
analysis demonstrates the utility of the correlation function.
