Decoder-Assisted Communications over Additive Noise Channels

Shraga I. Bross, Amos Lapidoth, Gian Marti

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

A number of additive noise networks are studied in the presence of a helper that observes the noise and assists the decoder by providing it with a rate-limited description of said noise. It is shown that 'flash helping' - where noise descriptions are provided infrequently but with great precision - is often optimal and typically increases capacity by the maximal allowed description rate. It requires no binning. The discrete setting of the modulo-additive noise channel is also discussed.

Original languageEnglish
Article number9050727
Pages (from-to)4150-4161
Number of pages12
JournalIEEE Transactions on Communications
Volume68
Issue number7
DOIs
StatePublished - Jul 2020

Bibliographical note

Publisher Copyright:
© 1972-2012 IEEE.

Keywords

  • Broadcast channel
  • capacity
  • dirty-paper coding
  • helper
  • multi-access channel
  • state

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