DESIGN OF THE ALAMOUTI SCHEME FOR A MIMO RECEIVER AND ITS IMPLEMENTATION ON AN FPGA

Abstract

This paper analyses the Alamouti scheme for different antenna configurations and different modulation types,
namely BPSK, QPSK and QAM. All configurations were modeled and simulated in MATLAB. A MIMO
receiver for a 21 antenna configuration and BPSK modulation was implemented in a FPGA. The FPGA
results indicate that the Alamouti scheme is a good design option for hardware implementation of a MIMO
receiver. The receiver uses only about 10% of the resources of a medium-sized FPGA and achieves almost
300 Msymbols per second.