Simplified DUPDA

\({\mathcal {O}}(LN_\text {t}N_\text {r})\)

Approximate Message Passing (AMP)

\({\mathcal {O}}(N_\text {I}N_\text {t}N_\text {r} + N_\text {I}N_\text {t}\sqrt{M})\)

ZeroForcing (ZF)

\({\mathcal {O}}(N_\text {t}^3 + N_\text {t}^2 N_\text {r} + N_\text {t} N_\text {r})\)

Deep Unfolded PDA (DUPDA)

\({\mathcal {O}}(LN_\text {t}^2 + LN_\text {t}N_\text {r} + LN_\text {r})\)

Probability Data Association (PDA)

\({\mathcal {O}}(N_\text {t}^4 + \sqrt{M}N_\text {t}^3 + N_\text {t}^2N_\text {r} + N_\text {t} N_\text {r})\)

Sphere Detector (SD)

\({\mathcal {O}}(M^{\sqrt{N_\text {t}}})\)

Maximum Likelihood Detector (MLD)

\({\mathcal {O}}(M^{N_\text {t}}(N_\text {t} N_\text {r} + N_\text {r}))\)
