Sparse estimation method of channel parameters in time-varying large-scale MIMO network
A channel parameter, large-scale technology, applied in the direction of shaping network, digital transmission system, radio transmission system, etc. in the transmitter/receiver, which can solve the problem when the MIMO network cannot be applied, the time division duplex mode is not applicable, and the network is not considered. Transgender issues
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[0045] The present invention will be further described below in conjunction with the accompanying drawings.
[0046] Refer to attached figure 1 , to further describe the specific steps of the present invention.
[0047] Step 1, construct the virtual channel sparse signal model of the signal received by the base station as follows.
[0048]
[0049] Among them, Y m Indicates the virtual channel sparse signal received by the base station in the mth time slot, τ indicates the total number of users in the cellular network cell currently communicating with the base station, Σ indicates the summation operation, and k indicates the cellular network cell users currently communicating with the base station serial number, F G Represents the normalized Fourier matrix of G×G size, G represents the number of antennas of the base station, H represents the conjugate transpose operation, diag(c k ) indicates that the diagonal element is the channel sparse parameter c of the user in the...
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