Intelligent Reflecting Surface for Massive Device Connectivity: Joint Activity Detection and Channel Estimation

11/12/2019
by   Shuhao Xia, et al.
0

Intelligent Reflecting Surface (IRS) has been a promising solution to enhance wireless networks both spectral-efficiently and energy-efficiently. This paper considers an IRS-assisted the Internet of Things network for massive connectivity. We aim to solve the IRS-related activity detection and channel estimation problem which has not been studied before. In this paper, we formulate the IRS-related activity detection and channel estimation problem as sparse matrix factorization, matrix completion and Multiple Measurement Vector problem and, we propose a three-stage framework based on the approximate message passing. Simulation results verify the effectiveness of the proposed algorithm.

READ FULL TEXT

Please sign up or login with your details

Forgot password? Click here to reset