Abstract
This paper reports a novel design and system performance evaluation of 3D MIMO under LTE-A framework based on 3GPP FD MIMO channel model.We exhibit a creative design of centralized configuration for data processing convenience on BS side considering massive MIMO antenna structure, we also present analysis of three main risks on 3D massive MIMO demonstrator design, including time synchronization, channel estimation error, and precoding algorithm complexity. Simulation observations from results show: 1). Moderate estimation error will not greatly deteriorate system performance; 2). Performance gains from 3D vertical distributed ports over 2D increases with more receiving antennas; 3). Gains provided by horizontal ports over vertical ports decreases as the vertical ports number increases. Moreover, vertical ports provide only a little less gain than horizontal ports with same number of total antenna ports.
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