RIS-Empowered Ambient Backscatter Communication Systems

• Published in: IEEE wireless communications letters Vol. 12; no. 1; pp. 173 - 177
• Main Authors: Loku Galappaththige, D., Rezaei, F., Tellambura, C., Herath, Sanjeewa
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 01.01.2023; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Ambient backscatter communication (AmBC); Backscatter; Backscattering; Communications systems; Energy harvesting; Interference; Mathematical programming; Optimization; passive tag; Programming; Radio frequency; reconfigurable intelligent surface (RIS); Signal to noise ratio; Task analysis

Passive tags must harvest sufficient energy to operate. However, ensuring the tag's energy needs and simultaneously suppressing the interference in ambient backscatter systems is challenging. To meet this, we employ a reconfigurable intelligent surface (RIS) to amplify the ambient source signal...