Performance Analysis of Compact FD-MIMO Antenna Arrays in a Correlated Environment
Type
ArticleKAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) DivisionElectrical Engineering Program
Date
2017-03-06Online Publication Date
2017-03-06Print Publication Date
2017Permanent link to this record
http://hdl.handle.net/10754/622984
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Full dimension multiple-input-multiple-output (FDMIMO) is one of the key technologies proposed in the 3rd Generation Partnership Project (3GPP) for the fifth generation (5G) communication systems. The reason can be attributed to its ability to yield significant performance gains through the deployment of active antenna elements at the base station in the vertical as well as the conventional horizontal directions, enabling several elevation beamforming strategies. The resulting improvement in spectral efficiency largely depends on the orthogonality of the sub-channels constituting the FD-MIMO system. Accommodating a large number of antenna elements with sufficient spacing poses several constraints for practical implementation, making it imperative to consider compact antenna arrangements that minimize the overall channel correlation. Two such configurations considered in this work are the uniform linear array (ULA) and the uniform circular array (UCA) of antenna ports, where each port is mapped to a group of physical antenna elements arranged in the vertical direction. The generalized analytical expression for the spatial correlation function (SCF) for the UCA is derived, exploiting results on spherical harmonics and Legendre polynomials. The mutual coupling between antenna dipoles is accounted for and the resulting SCF is also presented. The second part of this work compares the spatial correlation and mutual information (MI) performance of the ULA and UCA configurations in the 3GPP 3D urban-macro and urban-micro cell scenarios, utilizing results from Random Matrix Theory (RMT) on the deterministic equivalent of the MI for the Kronecker channel model. Simulation results study the performance patterns of the two arrays as a function of several channel and array parameters and identify applications and environments suitable for the deployment of each array.Citation
Nadeem Q-U-A, Kammoun A, Debbah M, Alouini M-S (2017) Performance Analysis of Compact FD-MIMO Antenna Arrays in a Correlated Environment. IEEE Access: 1–1. Available: http://dx.doi.org/10.1109/ACCESS.2017.2678602.Sponsors
The work of Q.-U.-A. Nadeem, A. Kammoun and M. -S. Alouini was supported by a CRG4 grant from the Office of Competitive Research Funding (OCRF) at KAUST. The work of Mérouane Debbah was supported by the ERC Starting Grant 305123 MORE (Advanced Mathematical Tools for Complex Network Engineering)Journal
IEEE AccessAdditional Links
http://ieeexplore.ieee.org/document/7872462/ae974a485f413a2113503eed53cd6c53
10.1109/ACCESS.2017.2678602