OFDM\add_noise.m ....\channel_novel_rician.m ....\cut_insert_cp.m ....\de_modulation.m ....\de_qam16.m ....\DFT.m ....\error_stat.m ....\input_b.m ....\insert_cp.m ....\insert_pilot.m ....\invert.m ....\ls.m ....\main.m ....\mmse.m ....\multipath_channg.m ....\parameter_classical.m ....\qam16.m ....\rayleigh.m ....\Rhhh.m ....\separate_pilot.m ....\svd.m OFDM