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research article

Zero-Rate Feedback Can Achieve the Empirical Capacity

Eswaran, Krishnan
•
Sarwate, Anand D.
•
Sahai, Anant
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2010
IEEE Transactions on Information Theory

The utility of limited feedback for coding over an individual sequence of discrete memoryless channels is investigated. This study complements recent results showing how limited or noisy feedback can boost the reliability of communication. A strategy with fixed input distribution is given that asymptotically achieves rates arbitrarily close to the mutual information induced by and the state-averaged channel. When the capacity-achieving input distribution is the same over all channel states, this achieves rates at least as large as the capacity of the state-averaged channel, sometimes called the empirical capacity.

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Type
research article
DOI
10.1109/TIT.2009.2034779
Web of Science ID

WOS:000273134100003

Author(s)
Eswaran, Krishnan
Sarwate, Anand D.
Sahai, Anant
Gastpar, Michael C.  
Date Issued

2010

Published in
IEEE Transactions on Information Theory
Volume

56

Start page

25

End page

39

Subjects

Arbitrarily varying channels

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common randomness

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feedback communication

•

hybrid ARQ

•

individual sequences

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rateless codes

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universal communication

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Arbitrarily Varying Channels

•

Limited Feedback

•

Length

•

Systems

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
LINX  
Available on Infoscience
October 17, 2011
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/71622
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