Table 1 Implementation steps of the BEM-based limited feedback
From: Multiuser MIMO downlink transmission with BEM-based limited feedback over doubly selective channels
Step 1 | BEM coefficients are estimated at mobile terminals using existing techniques [10, 11, 15] |
|---|---|
Step 2 | The vector of the BEM coefficients is partitioned as in (7) |
Step 3 | Limited feedback information is the indices of quantized vectors of BEM coefficients that are determined by (10) |
Step 4 | With the limited feedback information, the BS can recover the CSI using (11) and (14) |