On estimation of the noise variance in a high-dimensional signal detection model

Abstract

When the number of receivers p is large compared to the sample size n, it has been widely observed that standard inference solutions are no longer efficient. In this paper, we address such high-dimensional issues related to the estimation of the noise variance. Several authors have reported that the classical maximum likelihood estimator of the noise… (More)
DOI: 10.1109/SSP.2014.6884564

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