IEEE Transactions on Information Theory, volume 63, issue 4, pages 2338-2356
On the Capacity of Generalized Ising Channels
Artyom Sharov
1
,
Ron M. Roth
1
Publication type: Journal Article
Publication date: 2017-04-01
scimago Q1
SJR: 1.607
CiteScore: 5.7
Impact factor: 2.2
ISSN: 00189448, 15579654
Computer Science Applications
Library and Information Sciences
Information Systems
Abstract
Nearly tight lower and upper bounds on the capacity of generalized Ising channels are presented. For the case where feedback is allowed, a closed-form expression for the capacity is found for channel error probability p ∈ [0, p0], where p0 ≈ 0.398324. A near-capacity-achieving family of encoders is presented for the values p ∈ [0, p0]. Two lower bounds on that capacity for larger values of p are presented, one of which is tight on the interval [p0, 0.5].
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