On the mutual information of 3D massive MIMO systems: An asymptotic approach

Abstract
Motivated by the recent interest in 3D beamforming to enhance system performance, we present an information-theoretic channel model for multiple-input multiple-output (MIMO) systems, that can support the elevation dimension. The principle of maximum entropy is used to determine the distribution of the channel matrix consistent with the prior angular information. We provide an explicit expression for the cumulative density function (CDF) of the mutual information in the large number of transmit antennas and paths regime. The derived Gaussian approximation is quite accurate even for realistic system dimensions. The simulation results study the achievable performance through the meticulous selection of the transmit antenna downtilt angles. The results are directly applicable to the analysis of 5G 3D massive MIMO systems. © 2015 IEEE.

Citation
Nadeem Q-U-A, Kammoun A, Debbah M, Alouini M-S (2015) On the mutual information of 3D massive MIMO systems: An asymptotic approach. 2015 IEEE International Symposium on Information Theory (ISIT). Available: http://dx.doi.org/10.1109/ISIT.2015.7282924.

Acknowledgements
305123, ERC

Publisher
IEEE

Journal
2015 IEEE International Symposium on Information Theory (ISIT)

Conference/Event Name
IEEE International Symposium on Information Theory, ISIT 2015

DOI
10.1109/ISIT.2015.7282924

Additional Links
https://hal.archives-ouvertes.fr/hal-01242453/file/paper.pdf

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