On the Equivalence Between SLNR and MMSE Precoding Schemes with Single-Antenna Receivers


This letter considers transmit precoding schemes based mostly on the most signal-to-leakage-and-noise ratio (SLNR) in multiuser MIMO systems with single-antenna receivers. The closed-form solution of SLNR style is mostly given in the form of the eigenvector associated to the most eigenvalue. During this letter, analytic expressions of SLNR-based mostly solutions and resulting SLNR are derived for a generic power allocation (GPA). The solution is shown to be a function of user-allotted power and an arbitrary part shift. Beneath equal power allocation (EPA), the SLNR precoding scheme is shown to be reminiscent of the minimum mean sq. error (MMSE) precoding theme. Several useful implications in terms of the attainable extension of existing algorithms and performance analysis are discussed.

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