Abstract: Orthogonal frequency division multiplexing with index modulation (OFDM-IM), which transmits information bits through ordinary constellation symbols and indices of active subcarriers, is a ...

CP-OFDM and DFT-s-OFDM are the same waveforms that are used in 5G, giving 6G a distinctly 5G flavour in terms of the physical interface that will be developed between devices and network. That means ...

Unlike OFDM and OFDMA, both of which modulate information within the time-frequency domain, OTFS does so within the Delay Doppler domain Certain high mobility environments, such as high-speed trains, ...

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Signal modulation identification is of high interest for applications in military communications, but is not limited only to this specific field. Some possible applications are related to spectrum ...

Abstract: In optical wireless communications (OWC), hybrid optical orthogonal frequency division multiplexing (O-OFDM) schemes, such as hybrid asymmetrically clipped O-OFDM (HACO-OFDM) and layered ...

The optical orthogonal frequency division multiplexing (OFDM) is proven to be a most promising technology for the next-generation high-capacity and ultra-wide bandwidth 5G communication systems. 60 ...

1 Department of Electronics and Communication Engineering, Apollo Engineering College, Chennai, India. 2 Department of Electronics Engineering, MIT, Anna University, Chennai, India. Orthogonal ...