A Framework of Robust Transmission Design for IRS-Aided MISO Communications With Imperfect Cascaded Channels

• Published in: IEEE transactions on signal processing Vol. 68; pp. 5092 - 5106
• Main Authors: Zhou, Gui, Pan, Cunhua, Ren, Hong, Wang, Kezhi, Nallanathan, Arumugam
• Format: Journal Article
• Language: English
• Published: New York IEEE 2020; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Array signal processing; Beamforming; cascaded BS-IRS-user channels; Channel estimation; Channels; Errors; imperfect channel state information (CSI); Intelligent reflecting surface (IRS); Numerical models; Power system reliability; Radio equipment; Radio frequency; reconfigurable intelligent surface (RIS); robust design; Robustness; Robustness (mathematics); Statistical analysis; Wireless communication

Intelligent reflection surface (IRS) has recently been recognized as a promising technique to enhance the performance of wireless systems due to its ability of reconfiguring the signal propagation environment. However, the perfect channel state information (CSI) is challenging to obtain at the base...