A new space-time MIMO channel model

In this paper we develop a MIMO channel model and derive its spatial and temporal correlation properties. We present a generalized methodology to derive the spatial correlation when the angles of arrival (AoA) and angles of departure are either independent or fully correlated. Our model therefore spans the full range from well-established single ring models, where AoA and AoD are fully correlated to complex industrial channel models where they are uncorrelated. We compare our model to other MIMO channel models in terms of correlation structure and mutual information. Finally, it is shown that first order and second order approximations to the channel give rise to a single-Kronecker model and a sum-Kronecker model respectively