Introduction - If you have any usage issues, please Google them yourself
we shed light on the
potential and implementation of index modulation (IM) techniques for MIMO and multi-carrier communications
systems which are expected to be two of the key technologies for 5G systems. Specifically, we focus on two
promising applications of IM: spatial modulation (SM) and orthogonal frequency division multiplexing with IM
(OFDM-IM), and we discuss the recent advances and future research directions in IM technologies towards spectral
and energy-efficient 5G wireless networks.