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International Journal of Antennas and Propagation
Volume 2015 (2015), Article ID 318123, 9 pages
Research Article

Sum Rate Analysis of MU-MIMO with a 3D MIMO Base Station Exploiting Elevation Features

1College of Computer Science and Technology, Henan Polytechnic University, Jiaozuo 454000, China
2State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100786, China
3Beijing Institute of Computer Technology and Application, Beijing 100854, China

Received 28 August 2015; Accepted 26 November 2015

Academic Editor: Wei Xiang

Copyright © 2015 Xingwang Li et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Although the three-dimensional (3D) channel model considering the elevation factor has been used to analyze the performance of multiuser multiple-input multiple-output (MU-MIMO) systems, less attention is paid to the effect of the elevation variation. In this paper, we elaborate the sum rate of MU-MIMO systems with a 3D base station (BS) exploiting different elevations. To illustrate clearly, we consider a high-rise building scenario. Due to the floor height, each floor corresponds to an elevation. Therefore, we can analyze the sum rate performance for each floor and discuss its effect on the performance of the whole building. This work can be seen as the first attempt to analyze the sum rate performance for high-rise buildings in modern city and used as a reference for infrastructure.