Performance analysis of OFDM-IM scheme under STO and CFO

In this letter, performance analysis of orthogonal frequency division multiplexing with index modulation (OFDM-IM) is presented in term bit error rate (BERs). The considers its under two impairments, symbol time offset (STO) and carrier (CFO) frequency-selective fading channel. As multicarrier system, OFDM-IM subject to both inter-symbol interference (ISI) inter-carrier (ICI) a new communication where the active subcarriers indices are used carry additional bits information. general, previous existing works, evaluated only for near-ideal scenarios by incorporating CFO factor. work, investigated compared conventional OFDM presence STO CFO. Simulation results show that outperforms CFO, especially at high SNR areas.