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Cascaded Channel Estimation for Large Intelligent Metasurface Assisted Massive MIMO
[article]
2019
arXiv
pre-print
In this letter, we consider the problem of channel estimation for large intelligent metasurface (LIM) assisted massive multiple-input multiple-output (MIMO) systems. The main challenge of this problem is that the LIM integrated with a large number of low-cost metamaterial antennas can only passively reflect the incident signal by a certain phase shift, and does not have any signal processing capability. To deal with this, we introduce a general framework for the estimation of the
arXiv:1905.07948v2
fatcat:mlcoepv4ifg3jmlye25os5srke