One potential technology to provide high speed data rate and reliable transmission for modern networks is multipleinput multiple-output (MIMO) systems, which are equipped multiple antennas at both the transmitters and receivers. The main purpose of this paper is to present our own design and implementation of MIMO Space-time block coding (STBC) systems with various number of transmit and receive antennas. They are implemented on FPGA Altera Stratix DSP Development KIT using Verilog HDL. BER performance of the systems with the different number of transmit and receive antennas is measured and compared in term of hardware and software simulation.
The performance of MIMO-OFDM E-SDM systems may be seriously degraded in time-varying fading environments due to a channel transition. In the paper, we propose two methods of channel extrapolation to compensate for the channel change. Futhermore, we also consider a method to reduce the amount of header signal and the computational complexity for the systems. We conducted MIMO measurement campaigns at a 5.2 GHz frequency band to evaluate the system performance. Simulation results based on the measured channel data show that robust bit-error rate performance can be obtained by using our channel prediction methods in both line-of-sight (LOS) and non-LOS environments. It is also shown that the method of reducing the amount of header signal and the computational complexity may be used in the practical implementation point of view.
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