Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. Remote Source Coding Under Gaussian Noise: Dueling Roles of Power and Entropy Power
 
research article

Remote Source Coding Under Gaussian Noise: Dueling Roles of Power and Entropy Power

Eswaran, Krishnan
•
Gastpar, Michael C.  
2019
IEEE Transactions on Information Theory

The distributed remote source coding (the so-called CEO) problem is studied in the case where the underlying source, not necessarily Gaussian, has finite differential entropy and the observation noise is Gaussian. The main result is a new lower bound for the sum-rate-distortion function under arbitrary distortion measures. When specialized to the case of mean-squared error, it is shown that the bound exactly mirrors a corresponding upper bound, except that the upper bound has the source power (variance), whereas the lower bound has the source entropy power. Bounds exhibiting this pleasing duality of power and entropy power have been well known for direct and centralized source coding since Shannon’s work. While the bounds hold generally, their value is most pronounced when interpreted as a function of the number of agents in the CEO problem.

  • Details
  • Metrics
Type
research article
DOI
10.1109/TIT.2019.2897842
Author(s)
Eswaran, Krishnan
Gastpar, Michael C.  
Date Issued

2019

Published in
IEEE Transactions on Information Theory
Volume

65

Issue

7

Start page

4486

End page

4498

Subjects

Source coding

•

CEO problem

•

entropy power

•

entropy power inequality

•

source–channel separation theorem

•

joint source–channel coding

•

rate loss

•

Entropy

•

Distortion

•

Distortion measurement

•

Rate-distortion

•

Upper bound

•

Random variables

•

Measurement uncertainty

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LINX  
Available on Infoscience
July 2, 2019
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/158746
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés