Cost-efficient RIS-aided channel estimation via rank-one matrix factorization

• Main Authors: Zhang, Wei, Tay, Wee Peng
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2021
• Subjects: Engineering::Electrical and electronic engineering::Wireless communication systems; Channel Estimation; Matrix Factorization
• Online Access: https://hdl.handle.net/10356/152711
• Institution: Nanyang Technological University

A reconfigurable intelligent surface (RIS) consists of massive meta elements, which can improve the performance of future wireless communication systems. Existing RIS-aided channel estimation methods try to estimate the cascaded channel directly, incurring high computational and training overhead es...