Citation
Luengo García, David and Martino, Luca
(2012).
Efficient random variable generation: ratio of uniforms and polar rejection sampling.
"IET Electronics Letters", v. 48
(n. 6);
pp. 326-327.
ISSN 0013-5194.
https://doi.org/10.1049/el.2012.0206.
Abstract
Monte Carlo techniques, which require the generation of samples from some target density, are often the only alternative for performing Bayesian inference. Two classic sampling techniques to draw independent samples are the ratio of uniforms (RoU) and rejection sampling (RS). An efficient sampling algorithm is proposed combining the RoU and polar RS (i.e. RS inside a sector of a circle using polar coordinates). Its efficiency is shown in drawing samples from truncated Cauchy and Gaussian random variables, which have many important applications in signal processing and communications.
RESUMEN.
Método eficiente para generar algunas variables aleatorias de uso común en procesado de señal y comunicaciones (por ejemplo, Gaussianas o Cauchy truncadas) mediante la combinación de dos técnicas: "ratio of uniforms" y "rejection sampling".