On The Han–Kobayashi Region for theInterference Channel

Abstract

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> In this correspondence, we derive a simplified description of the Han–Kobayashi rate region for the general interference channel. Using this result, we establish that the recently discovered Chong–Motani–Garg rate region is a new representation of the Han–Kobayashi region. Moreover, a tighter bound for the cardinality of the time-sharing auxiliary random variable emerges from our simplified description. </para>