Index modulation (IM) provides a novel way for the transmission of additional data bits via indices available transmit entities compared with classical communication schemes. This study examines flexible utilization existing IM techniques in comprehensive manner to satisfy challenging and diverse requirements 5G beyond services. After spatial (SM), which transmits information through antenna in...

In this letter, we propose layered asymmetrically clipped optical-orthogonal frequency-division multiplexing (LACO-OFDM) with index modulation (IM), i.e., LACO-OFDM-IM for optical wireless systems. classical LACO-OFDM, the spectral leakage because of out-of-band clipping harmonics increases baseband bandwidth (BB) resulting in lower efficiencies. For LACO-OFDM-IM, use IM and optimize BB by filt...