Rank-1 Matrix Approximation-Based Channel Estimation for Intelligent Reflecting Surface-Aided Multi-User MISO Communications

The acquisition of channel state information is an essential step in enabling intelligent reflecting surfaces (IRSs) for wireless communications. In this letter, we introduce a novel procedure to estimate the cascaded channel between the base station (BS), IRS, and users in a multi-user multiple-inp...

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Veröffentlicht in:	IEEE communications letters 2021-08, Vol.25 (8), p.2589-2593
Hauptverfasser:	Sumanthiran, Shechem, Kudathanthirige, Dhanushka, Hemachandra, Kasun T., Samarasinghe, Tharaka, Baduge, Gayan Aruma
Format:	Artikel
Sprache:	eng
Schlagworte:	Antennas Channel estimation IRS Mathematical analysis Matrix decomposition MISO (control systems) Protocols Reconfigurable intelligent surfaces Rician channels Training Upper bounds Wireless communication Wireless communications
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