Performance Analysis of OFDM-IM Systems over Generalized \eta-\mu Fading Channels

In this paper, average bit error rate (ABER) performance of an orthogonal frequency division multiplexing with index modulation (OFDM-IM) system, which is a strong transmission technology candidate for next-generation networks, has been analyzed over generalized fading models, namely eta-mu (\eta-\mu) and kappa-mu (\kappa-\mu) fading channels. These models have the advantage of simple algebraic notation, line-of-sight (LOS) and non-line-of-sight (NLOS) propagation effects. The \kappa-\mu fading channel model is a LOS distribution, that includes the Nakagami-m and the Rice (Nakagami-n) distributions. Similarly, the special cases of \eta-\mu fading channel model are Hoyt, Rayleigh, Nakagami-m and One-sided Gaussian distributions. The effect of \eta-\mu and \kappa-\mu fading channel characteristics on the ABER performance of OFDM-1M systems was shown via computer simulations. © 2022 IEEE.