Reflecting Modulation

Understand

Reconfigurable intelligent surface (RIS) has emerged as a promising technique for future wireless communication networks.

• How to reliably transmit information in a RIS-based communication system arouses much interest.
• This paper proposes a reflecting modulation (RM) scheme for RIS-based communications, where both the reflecting patterns and transmit signals can carry information.
• Depending on that the transmitter and RIS jointly or independently deliver information, RM is further classified into two categories: jointly mapped RM (JRM) and separately mapped RM (SRM).