Technique designation | Corresponding metric |
---|---|
ODN naïve (O)SIC FNSA | \( \parallel {\boldsymbol{Q}}^H\boldsymbol{y}-\boldsymbol{R}\boldsymbol{x}{\parallel}^2,\ \boldsymbol{x}\in {\xi}^{n_{\mathrm{T}}} \) |
ODN exact ZF-(O)SIC FNSA | \( \parallel \boldsymbol{R}\left({\boldsymbol{y}}_{\mathrm{ZF}}-\boldsymbol{x}\right){\parallel}^2,\ \boldsymbol{x}\in {\xi}^{n_{\mathrm{T}}} \) [14] |
ODN equivalent MMSE-(O)SIC FNSA | \( {\left({\boldsymbol{y}}_{\mathrm{MMSE}}-\boldsymbol{x}\right)}^H\left({\boldsymbol{H}}^H\boldsymbol{H}+{\sigma}^2\boldsymbol{I}\right)\left({\boldsymbol{y}}_{\mathrm{MMSE}}-\boldsymbol{x}\right),\ \boldsymbol{x}\in {\xi}^{n_{\mathrm{T}}} \) [38] |
RDN exact LRA-ZF-(O)SIC FNSA | \( \parallel \tilde{\boldsymbol{R}}\left({\boldsymbol{z}}_{\mathrm{LRA}\hbox{-} \mathrm{Z}\mathrm{F}}-\boldsymbol{z}\right){\parallel}^2,\ \boldsymbol{z}\in {\mathrm{\mathbb{Z}}}_{\mathrm{\mathbb{C}}}^{n_{\mathrm{T}}} \) |
RDN equivalent LRA-MMSE-(O)SIC FNSA (proposed) | \( {\left({\boldsymbol{z}}_{\mathrm{LRA}\hbox{-} \mathrm{MMSE}}-\boldsymbol{z}\right)}^H\left({\tilde{\boldsymbol{H}}}^H\tilde{\boldsymbol{H}}+{\sigma}^2{\boldsymbol{T}}^H\boldsymbol{T}\right)\left({\boldsymbol{z}}_{\mathrm{LRA}\hbox{-} \mathrm{MMSE}}-\boldsymbol{z}\right),\ \boldsymbol{z}\in {\mathrm{\mathbb{Z}}}_{\mathrm{\mathbb{C}}}^{n_{\mathrm{T}}} \) |
ML | \( \parallel \boldsymbol{y}-\boldsymbol{H}\boldsymbol{x}{\parallel}^2,\ \boldsymbol{x}\in {\xi}^{n_{\mathrm{T}}} \) |