Joint Source-Channel Coding with Feedback

Victoria Kostina, Yury Polyanskiy, Sergio Verdú

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

This paper quantifies the fundamental limits of variable-length transmission of a general (possibly analog) source over a memoryless channel with noiseless feedback, under a distortion constraint. We consider excess distortion, average distortion, and guaranteed distortion (d-semifaithful codes). In contrast to the asymptotic fundamental limit, a general conclusion is that allowing variable-length codes and feedback leads to a sizable improvement in the fundamental delay-distortion tradeoff. In addition, we investigate the minimum energy required to reproduce k source samples with a given fidelity after transmission over a memoryless Gaussian channel, and we show that the required minimum energy is reduced with feedback and an average (rather than maximal) power constraint.

Original languageEnglish (US)
Article number7864393
Pages (from-to)3502-3515
Number of pages14
JournalIEEE Transactions on Information Theory
Volume63
Issue number6
DOIs
StatePublished - Jun 2017

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Computer Science Applications
  • Library and Information Sciences

Keywords

  • Variable-length coding
  • energy-distortion tradeoff
  • feedback
  • finite-blocklength regime
  • joint source-channel coding
  • lossy compression
  • memoryless channels
  • rate-distortion theory
  • single-shot method

Fingerprint Dive into the research topics of 'Joint Source-Channel Coding with Feedback'. Together they form a unique fingerprint.

  • Cite this

    Kostina, V., Polyanskiy, Y., & Verdú, S. (2017). Joint Source-Channel Coding with Feedback. IEEE Transactions on Information Theory, 63(6), 3502-3515. [7864393]. https://doi.org/10.1109/TIT.2017.2674667