Index modulation for OFDM RadCom systems

This paper studies a novel Radar and wireless communication fusion system namely, RadCom, using orthogonal frequency division multiplexing index modulation waveforms. From the perspective, information is conveyed not only through modulated subcarriers but also by active subcarrier indices that are dynamically updated at transmitted symbol rates. When compared with conventional systems, subset of activated in proposed system, which reduces signal peak-to-average ratios, leading to enhanced power amplifier efficiency. sensing range-velocity profile obtained compressed approach simulated presented. It shown RadCom can enhance transmission data rates when low-order schemes adopted e.g. binary phase shift keying, maintain similar performance counterpart carefully designed.