Reconfigurable Intelligent Surface Assisted MIMO Symbiotic Radio Networks

• Published in: IEEE transactions on communications Vol. 69; no. 7; pp. 4832 - 4846
• Main Authors: Zhang, Qianqian, Liang, Ying-Chang, Poor, H. Vincent
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.07.2021; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Algorithms; Antennas; Backscattering; beamforming; Complexity; Computational complexity; Convexity; MIMO communication; multiple-input multiple-output (MIMO); Optimization; Radio transmitters; Receivers; Receivers & amplifiers; Reconfigurable intelligent surface (RIS); Reconfigurable intelligent surfaces; Signal to noise ratio; Simulation; Symbiosis; symbiotic radio (SR)

In this paper, a novel reconfigurable intelligent surface (RIS)-assisted multiple-input multiple-output (MIMO) symbiotic radio (SR) system is proposed, in which an RIS, operating as a secondary transmitter (STx), sends messages to a multi-antenna secondary receiver (SRx) by using cognitive backscatt...