On the achievable region for interference networks with point-to-point codes

TL;DR

This paper analyzes the capacity region of interference networks with point-to-point codes, revealing that generalized message assignment with joint decoding achieves larger rates and offering insights for simpler implementation.

Contribution

It introduces a generalized message assignment approach that outperforms traditional methods in interference networks with point-to-point codes.

Findings

Generalized message assignment yields larger achievable rates.

Joint decoding at receivers enhances capacity.

The evaluation simplifies understanding of the capacity region.

Abstract

This paper studies evaluation of the capacity region for interference networks with point-to-point (p2p) capacity-achieving codes. Such capacity region has recently been characterized as union of several sub-regions each of which has distinctive operational characteristics. Detailed evaluation of this region, therefore, can be accomplished in a very simple manner by acknowledging such characteristics, which, in turn, provides an insight for a simple implementation scenario. Completely generalized message assignment which is also practically relevant is considered in this paper, and it is shown to provide strictly larger achievable rates than what traditional message assignment does when a receiver with joint decoding capability is used.