Math @ Duke

Publications [#322712] of Henry Pfister
Papers Published
 Sabag, O; Permuter, HH; Pfister, HD, A singleletter upper bound on the feedback capacity of unifilar finitestate channels,
IEEE International Symposium on Information Theory  Proceedings, vol. 2016August
(August, 2016),
pp. 310314, ISBN 9781509018062 [doi]
(last updated on 2018/05/23)
Abstract: © 2016 IEEE. A singleletter upper bound on the feedback capacity of a unifilar finitestate channel is derived. The upper bound is tight for all cases where the feedback capacity is known. Its efficiency is also demonstrated by direct application of the bound on the dicode erasure channel, which results in a new capacity result. The bound is based on a new technique, called the Qcontexts mapping, where the channel outputs are recursively quantized to a finite set, called the contexts set.


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