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User Grouping Based Multi-Layer Precoding for Multi-Cell 3D MIMO System with Statistical CSI | IEEE Conference Publication | IEEE Xplore

User Grouping Based Multi-Layer Precoding for Multi-Cell 3D MIMO System with Statistical CSI


Abstract:

In this paper, we propose a multi-layer precoding scheme for multi-cell three-dimensional multiple-input multiple-output (3D MIMO) system with large-scale uniform planar ...Show More

Abstract:

In this paper, we propose a multi-layer precoding scheme for multi-cell three-dimensional multiple-input multiple-output (3D MIMO) system with large-scale uniform planar antenna array at the base station (BS). Based on a lower bound of the average signal-to-leakage-plus-noise ratio (SLNR) and taking the fairness of scheduled users into account, we propose a user grouping algorithm exploiting only statistical channel state information (CSI). Then we apply the user grouping algorithm to the multi-layer precoding framework. The proposed scheme greatly reduces the CSI required by the BS with using only users’ statistical CSI. Simulation results show that the proposed scheme can achieve good fairness and high sum rate.
Date of Conference: 24-28 June 2019
Date Added to IEEE Xplore: 22 July 2019
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Conference Location: Tangier, Morocco

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