Feedback Capacity of the Gaussian Interference Channel to Within 1.7075 Bits: the Symmetric Case

Simple item page
dc.creatorSuh, Changho
dc.creatorTse, David
dc.date2009-01-23
dc.date.accessioned2026-07-07T12:33:39Z
dc.date.available2026-07-07T12:33:39Z
dc.descriptionWe characterize the symmetric capacity to within 1.7075 bits/s/Hz for the two-user Gaussian interference channel with feedback. The result makes use of a deterministic model to provide insights into the Gaussian channel. We derive a new outer bound to show that a proposed achievable scheme can achieve the symmetric capacity to within 1.7075 bits for all channel parameters. From this result, we show that feedback provides unbounded gain, i.e., the gain becomes arbitrarily large for certain channel parameters. It is a surprising result because feedback has been so far known to provide only power gain (bounded gain) in the context of multiple access channels and broadcast channels.
dc.descriptionsubmitted to the International Symposium and Information Theory
dc.identifierhttps://arxiv.org/abs/0901.3580
dc.identifierhttp://arxiv.org/abs/0901.3580
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/217201
dc.subjectInformation Theory
dc.titleFeedback Capacity of the Gaussian Interference Channel to Within 1.7075 Bits: the Symmetric Case
dc.typetext

Files

Collections

arXiv