Photo by sunlifter from unsplash
The unprecedented surge of mobile data traffic requires future wireless networks to support both high spectral efficiency and energy efficiency. To this end, index modulation (IM) emerges as a revolutionary… Click to show full abstract
The unprecedented surge of mobile data traffic requires future wireless networks to support both high spectral efficiency and energy efficiency. To this end, index modulation (IM) emerges as a revolutionary modulation concept. As a realization of IM in frequency domain, subcarrier IM (SIM) has been receiving significant interest. In this article, we introduce the generic framework of SIM and its specific representatives. The potential applications of SIM are then investigated in a variety of scenarios, including cognitive radio, relay networks, downlink multiuser communications, and physical layer security. We finally discuss the challenges and possible research directions in SIM and its applications.
Journal Title: IEEE Wireless Communications
Year Published: 2020
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!