  The signal-to-leakage-and-noise ratio (SLNR) precoder is widely used for
MU-MIMO systems in many works, and observed with improved performance from
zeroforcing (ZF) precoder. Our work proofs SLNR precoder is completely
equivalent to conventional regulated ZF (RZF) precoder, which has significant
gain over ZF precoder at low SNRs. Therefore, with our conclusion, the existing
performance analysis about RZF precoder can be readily applicable to SLNR
precoder.
