A Novel 3D Multi-Confocal Ellipsoid Simulation Model for 5G Massive MIMO Mobile Wireless Networks
- Additional Document Info
- View All
© 2018 IEEE. In this paper, we propose a novel three-dimensional (3D) multi-confocal ellipsoid simulation model with uniform planar antenna array (UPA) for massive multiple-input multiple-output (MIMO) communication systems. Firstly, by employing the spherical wavefront, we characterize near-field effects including the angle of arrival (AoA) shifts and Doppler frequency variations in both space and time domains, and we derive the closed-form expressions of impulse responses of the theoretical model. Secondly, we develop a corresponding simulation model with finite and discrete scatterers within a cluster for the theoretical model. Additionally, we develop the cluster evolution algorithm with a 3D extension of our previously proposed scheme for modeling non-stationary properties of clusters. Their impacts on the proposed channel model are investigated via key statistical properties, e.g., the spatial-temporal cross-correlation function. Moreover, we also discuss the impacts of the range of offset angles and the number of scatterers within a cluster on statistical properties of the proposed simulation model. Finally, our numerical and simulation results show that our proposed simulation channel model is able to capture characteristics of massive MIMO channels while well agreeing with the results obtained from the theoretical modeling.
author list (cited authors)
Chen, J., Zhang, P., Zhang, X. i., Yang, X., & Mat, N.