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https://www.cisco.com/c/en/us/solutions/collateral/service-provider/visual-networking-index-vni/mobile-white-paper-c11-520862.html
. Accessed 03 Oct 2017
2. 3GPP TR 36.897 V13.0.0 3rd Generation Partnership Project;Technical Specification Group Radio Access Network; Study on elevation beamforming/Full-Dimension (FD) Multiple Input Multiple Output (MIMO) for LTE (Release 13) (2015)
https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=2580
. Accessed 03 Oct 2017
3. Jöngren G (2015) Multi-antennas for improved LTE performance
https://www.ericsson.com/research-blog/lte/multi-antennas-improved-lte-performance/
. Accessed 03 Oct 2017
4. 3GPP TR 36.873, Study on 3D channel model for LTE (2015)
https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=2574
. Accessed 03 Oct 2017
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