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Significant capacity improvements are possible when the multiple antennas are employed at both the transmitter and receiver. However, the application of multiple antenna systems is restricted by increasing of the cost and complexity of radio frequency (RF) subsystem. The authors in J. Ahmadi-Shokouh et al. (2006) presented a novel structure which not only overcomes the aforementioned limitation but...
Multiple input multiple output (MIMO) systems equipped with Smart Passive Receive Antenna Selection (SPRAS) technique [1], [3] need the Channel State Information at Receiver side (CSIR) to maximize the mutual information through applying the optimum passive weighting matrix. In this paper, a frequency domain channel estimation method is proposed for Orthogonal Frequency-Division Multiplexing (OFDM)-based...
In this paper, we examine the improvements in the performance of a VBLAST-based multiple-input multiple-output (MIMO) system equipped with a recently proposed smart passive receive antenna selection (SPRAS) technique and compare it with the other existing antenna selection schemes. The simulation results show the superiority of SPRAS compared to the other selection techniques. Specifically, when the...
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