On the transfer matrix of a MIMO system
arXiv:1012.3323 · doi:10.1002/mma.1415
Abstract
We develop a deterministic ab-initio model for the input-output relationship of a multiple-input multiple-output (MIMO) wireless channel, starting from the Maxwell equations combined with Ohm's Law. The main technical tools are scattering and geometric perturbation theories. The derived relationship can lead us to a deep understanding of how the propagation conditions and the coupling effects between the elements of multiple-element arrays affect the properties of a MIMO channel, e.g. its capacity and its number of degrees of freedom.
Accepted for publication in Mathematical Methods in the Applied Sciences