MIMO-OFDM System Simulation and Channel Estimation Algorithms

MIMO (Multiple-Input Multiple-Output) technology was first proposed by Marconi in 1908, utilizing multiple antennas to mitigate channel fading. Based on the number of antennas at both transmitter and receiver ends, MIMO systems can be categorized into SIMO (Single-Input Multiple-Output) and MISO (Multiple-Input Single-Output) systems, in contrast to conventional SISO (Single-Input Single-Output) systems. The implementation typically involves spatial multiplexing algorithms and channel state information processing, where channel capacity increases linearly with the number of antennas. This linear relationship can be demonstrated through capacity calculation algorithms using singular value decomposition (SVD) of channel matrices.