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Channel Estimation and Performance Evaluation of Multi-IRS Aided MIMO Communication System

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Work submited to the WCNPS2021 conference

We study a channel estimation and joint beamforming design method for multi-IRS multiple-input and multiple-output (MIMO) systems. We consider a scenario where multiple intelligent reflecting surfaces (IRSs) are located on the exact spot of the dominant channel scatterers. We investigate the spectral efficiency (SE), benefits and drawbacks of deploying multiple IRSs in comparison with a scenario with a single or no IRS. Our simulation results show a trade-off between the number of reflecting elements and the total number of IRSs in the system.

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Channel Estimation and Performance Evaluation of Multi-IRS Aided MIMO Communication System

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