To cite this version: A. Swindlehurst, A. Saxena, A. Mezghani, I. Fijalkow. Minimum probability-of-error perturbation precoding for the one-bit massive MIMO downlink. ABSTRACT Linear precoders have been shown to perform reasonably well at low SNR when the basestation of a MIMO downlink employs one-bit digital-to-analog converters to quantize the precoder outputs. However, at medium-to-high SNRs, an error floor is encountered due to the coarse quantization. This paper examines methods for

more »

... y perturbing the transmitted signal prior to quantization in an effort to improve downlink performance at higher SNRs. The perturbation is performed with the goal of minimizing the worst-case probability of error among the user terminals, and assumes that the symbols to be transmitted are drawn from a finite alphabet constellation. Two different types of perturbations are studied, and it is found via simulation that the methods can provide dramatic gains in downlink performance. Index Termsone-bit quantization, massive MIMO, linear precoding, perturbation precoding, minimum probability of error precoding