On the Sum Capacity of A Class of Cyclically Symmetric Deterministic Interference Channels

TL;DR

This paper determines the sum capacity of a cyclically symmetric deterministic interference channel, extending previous two-user results to multiple users, and providing insights into interference management in such networks.

Contribution

It generalizes the sum capacity results from two-user to multi-user cyclically symmetric deterministic interference channels.

Findings

Sum capacity established for a large set of channel parameters.

Generalization from 2-user to multi-user interference channels.

Insights into interference management in cyclically symmetric networks.

Abstract

Certain deterministic interference channels have been shown to accurately model Gaussian interference channels in the asymptotic low-noise regime. Motivated by this correspondence, we investigate a K user-pair, cyclically symmetric, deterministic interference channel in which each receiver experiences interference only from its neighboring transmitters (Wyner model). We establish the sum capacity for a large set of channel parameters, thus generalizing previous results for the 2-pair case.