|
\({\varvec{W}}_{u}\)
|
Precoding matrix for the u-th user
|
|
\(\bar{{\varvec{H}}}_{u}\)
|
Effective channel matrix for the u-th user
|
|
\(\tilde{{\varvec{H}}}_{u}\)
|
Composite channel matrix for the u-th user
|
|
\(\hat{{\varvec{W}}}\)
|
Sparse precoding matrix
|
|
\({\varvec{S}}\)
|
Link selection matrix
|
|
\({\varvec{S}}^{b}\)
|
Link selection sub-matrix for the b-th BS
|
|
\({\varvec{S}}_{u}\)
|
Link selection sub-matrix for the u-th user
|
|
\({\mathrm{N}}_{b}\)
|
Number of BSs
|
|
\({\mathrm{N}}_{t}\)
|
Number of BS’s transmission antennas
|
|
\({\mathrm{N}}_{u}\)
|
Number of users
|
|
\({\mathrm{N}}_{r}\)
|
Number of user’s transmission antennas
|
