full design for the 2x2 MIMO on FPGA, very amazing pdf to give the design for the block of the 2x2 mimo using the alamouti coding.

Implementing a real-time MIMO-OFDM physical layer over FPGA

FBMC transmitter offers low power and high speed than the OFDM transmitter.Spectral efficiency is high. sidelobe problem is eliminated by using filter bank.