Abstract: To implement a realistic channel, markov chain is applied. Markov chain helps to achieve better BER performance. Channels like AWGN, Rayleigh and Rician is studied for Line-Of-Sight and Non Line-Of-Sight propagation. Comparison between these channels is implemented for selection of better communication channel. MIMO-OFDM transmit multiple data signals parallel. Since markov chain is irreducible, it is possible to to travel from one state to another. This will result into error free communication.

Keywords: MIMO, OFDM, Markov Chain, BER.