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Table 2 System simulation parameters

From: An enhanced beamspace channel estimation algorithm for wideband millimeter-wave massive MIMO systems

Parameters

Value

Number of lens antenna array elements I

256

Number of RF chains \({I_{RF}}\)

4:2:16

Number of users K

4:2:16

Number of sub-carriers M

(128:64:512)

Bandwidth B

(1:0.5:4) GHz

Carrier frequency \({f_c}\)

28 GHz

Number of paths L

3

Number of instants per users for pilot transmission Q

(6:2:20)

Complex gain per path \({\beta _l}\)

CN(0, 1)

Physical direction \({\theta _l}\)

\(U( - \frac{\pi }{2},\frac{\pi }{2})\)

Time delay per path \({\rho _l}\)

\(U(0,20\,{\rm{{ns}}})\)