Open AccessA wideband MIMO channel model derived from the geometric elliptical scattering model
Author(s) -
Pätzold Matthias,
Hogstad Bjørn Olav
Publication year - 2008
Publication title -
wireless communications and mobile computing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.42
H-Index - 64
eISSN - 1530-8677
pISSN - 1530-8669
DOI - 10.1002/wcm.572
Subject(s) - mimo , wideband , autocorrelation , computer science , angle of arrival , scattering , channel (broadcasting) , isotropy , antenna (radio) , correlation function (quantum field theory) , function (biology) , topology (electrical circuits) , algorithm , telecommunications , physics , optics , mathematics , statistics , spectral density , combinatorics , evolutionary biology , biology
Abstract In this paper, we present a reference model for a wideband multiple‐input multiple‐output (MIMO) channel based on the geometric elliptical scattering model. The model takes into account the exact relationship between the angle of departure (AOD) and the angle of arrival (AOA). Based on this relationship, the statistical properties of the reference model are studied. Analytical solutions are presented for the three‐dimensional (3D) space‐time cross‐correlation function (CCF), the temporal autocorrelation function (ACF), the 2D space CCF, and finally the frequency correlation function (FCF). The correlation properties are studied and visualized under the assumption of isotropic as well as non‐isotropic scattering conditions. The proposed reference model can be used as a starting point for the derivation of a frequency‐selective space‐time MIMO channel simulator enabling the performance evaluation of multi‐antenna wideband communication systems. The reference model is also quite useful for studying the MIMO channel capacity under various propagation conditions imposed by the geometry of the underlying scattering model. Copyright © 2007 John Wiley & Sons, Ltd.