Joint DL and UL Channel Estimation for Millimeter Wave MIMO Systems Using Tensor Modeling
Algorithm 3
Overall pseudocode of the proposed receivers for joint DL and UL channel estimation.
1
First Stage. estimation of the compressed channel matrices
(1.1)
From the received signal tensor in (20), obtain the estimated factor matrices and via B-ALS or LS-KRF described in Algorithms 1 and 2, respectively,
(2)
Second Stage. parameters estimation and channels reconstruction
(2.1)
From , obtain the estimates of the channel parameters (AoDs, AoAs, and path gains) for each MS by applying a CS recovery algorithm (e.g., OMP) to problems (40) and (41) independently
(2.2)
The BS constructs the estimated DL and UL channel matrices and according to (44) and (45), respectively.
