No pre-filt | Pre-filtering is omitted |
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IM MMSE | The ideal MMSE solution (3) is used in the pre-filter, no secondary filter is required |
MMSE2 | Equation (12) is used in the pre-filter and Equation (13) is used for MIMO detection with ideal CSI |
MSINR | Equation (11) is used in the pre-filter |
SMI | Equation (7) is used in the pre-filter |