Abstract
The primary goal of next-generation wireless communication and mobile systems is to maximize bandwidth usage while achieving greater data speeds. The MIMO communication technique is now used for such. One diversity scheme utilized to enhance error performance is the EXTENDED ALAMOUTI scheme with 4X4 diversity order, which we portray in this study. The error performance of this novel diversity technique on several fading channels, namely AWGN, RICIAN, RAYLEIGH, and NAKAGAMI, is discussed in this work. The error performance comparison between this novel scheme and the ALAMOUTI system with 2XM diversity order across all four fading channels using an ML detector is shown in this study. In order to clarify the differences between the four fading channels, this research also compares them using a BER vs. SNR graph.