Optimal performance in MIMO system using modified alamouti algorithm

The modified alamouti algorithm is one of the diversity techniques applied to MIMO systems having two transmit antennas at the transmitter and any number of receive antennas at the receiver. The multiple copies of same signal can be sent via two different antennas. The proposed algorithm is implemented for 2*1 antennas and 2*2 antennas and the modified alamouti algorithm using Zero Forcing receiver in Rayleigh channel provides better performance for different modulation schemes and it is compared with the existing systems.