Adaptive Beamforming for MIMO Space-Time Block Coding over Fast Fading Channel
نویسندگان
چکیده
This paper describes a novel Multiple-Input MultipleOutput (MIMO) system robust to fast fading environment. Space time block coding (STBC) using two transmit antennas is employed at the mobile station while the base station allows implementation of adaptive array using recursive least squares (RLS) algorithms to overcome fast fading problem. The proposed scheme adopts simultaneous transmission of data and pilot signals reducing control errors occurred by delay of obtaining Channel State Information (CSI). The simulation results show that the proposed scheme can defeat Doppler spread in higher frequencies and suppress co-channel interference up to N − 1 users with using N receiving antennas.
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تاریخ انتشار 2006