PROJECT TITLE :
Performance Analysis of Two???Dimensional Massive Antenna Arrays for Future Mobile Networks
During this paper, the performance of a large multiple-antenna system underneath the pilot contamination effect is studied. A 2-D large antenna array with the same circular array (UCA) topology at base stations (BSs) is considered. A 3-D spatial channel model with Von Mises Fisher (VMF) distribution is applied. It is shown that the interfering channels tend to fall into the null space of the specified user's covariance matrix. The pilot contamination can be mitigated if the angle-of-arrival (AoA) pairs of the interfering users have a nonoverlapping region with the AoA of the desired user. The impact of the AoA distribution on the beam pattern is studied still. Numerical results confirm the analysis and show that the mitigation of pilot contamination depends on the directional dispersion of the multipath AoA distribution.
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