Gaussian Approximation of Quantization Error for Estimation from Compressed Data
Conference Paper
We consider the statistical connection between the quantized representation of a high dimensional signal X using a random spherical code and the observation of X under an additive white Gaussian noise (AWGN). We show that given X, the conditional Wasserstein distance between its bitrate-R quantized version and its observation under AWGN of signal-to-noise ratio 22R - 1 is sub-linear in the problem dimension. We then utilize this fact to connect the mean squared error (MSE) attained by an estimator based on an AWGN-corrupted version of X to the MSE attained by the same estimator when fed with its bitrate-R quantized version.
Full Text
Duke Authors
Cited Authors
- Kipnis, A; Reeves, G
Published Date
- July 1, 2019
Published In
Volume / Issue
- 2019-July /
Start / End Page
- 2029 - 2033
International Standard Serial Number (ISSN)
- 2157-8095
International Standard Book Number 13 (ISBN-13)
- 9781538692912
Digital Object Identifier (DOI)
- 10.1109/ISIT.2019.8849826
Citation Source
- Scopus