Loading...
research article
Zero-Rate Feedback Can Achieve the Empirical Capacity
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.
Type
research article
Web of Science ID
WOS:000273134100003
Authors
Publication date
2010
Published in
Volume
56
Start page
25
End page
39
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
October 17, 2011
Use this identifier to reference this record