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In this paper, a closed-form expression for Bit Error rate (BER) of a Multiple-Input Multiple-Output (MIMO) system employing the Minimum Mean Square Error MMSE channel estimation method is derived. The numerical results show that when the Channel State Information (CSI) is free of estimation errors BER decreases when the number of receive antennas increases. However under imperfect CSI, BER is getting...
This paper reports the performance of a downlink of a multiuser MIMO system which uses a successive beamforming broadcasting scheme. The investigations take into account the effects of mutual coupling that is present in receiving antennas. It is shown that that the mutual coupling changes the received signals statistic properties and impacts the co-channel interference component. The overall mutual...
In this paper, the performances of two MIMO channel estimation methods, the scaled least square (SLS) and the minimum mean-square error (MMSE), have been investigated using a two-ring double-bounce channel model representing a signal scattering environment. It has been shown that both SLS and MMSE methods offer a better performance at higher values of the Rician factor K, meaning that the presence...
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