Abstract
The evaluation to the performance of bit error rate (BER) for an massive multi-input multi-output (M-MIMO) system with spatial time shift keying (STSK) scheme over three-dimensions (3-D) fading model is proposed in this article. The long-term evaluation advanced (LTE-A) or 5th generation (5G) M-MIMO radio system is deployed with beamforming techniques over 3-D environment that contains the correlation phenomenon between angle of arrival (AoA) and angle of departure (AoD). Moreover, the determination of moment generating function (MGF) and characteristic function (CF) approaches is applied to derive analytical expression of BER for 3-D M-MIMO in order to avoid some difficult steps. Besides, the channel capacity is presented by using of mutual information to confirm the accuracy of the theoretically derived formulas. Furthermore, the work of performance evaluation is with different numbers of transmitter and receiver antennas. The correlation parameter between AoA and AoD definitely generates impact on the performance of BER when consider an M-MIMO system over the fading model and beamforming transmission.
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