An Outer Bound Region for Interference Channels With Generalized Feedback

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Executive Summary

Interference Channels with Generalized Feedback (IFC-GF) are a model for wireless communication systems with source cooperation. GF enables to enlarge the achievable rate region with respect to the non-cooperative IFC without requiring an increase in system resources. This paper develops an outer bound region on the capacity of general IFC-GF and then tighten it further for a class of semi-deterministic IFC-GF that include the "High SNR approximation" of the Gaussian channel and the Gaussian channel as special cases.

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