A Cooperative Network Coding Strategy for the Interference Relay Channel

TL;DR

This paper introduces a cooperative network coding strategy for satellite-based interference relay channels, enhancing throughput by leveraging physical layer network coding and superposition decoding, even under practical synchronization constraints.

Contribution

It proposes a novel cooperative strategy combining physical layer network coding and superposition decoding for satellite relay networks, improving throughput over traditional methods.

Findings

Significantly increased throughput compared to time sharing

Effective performance despite lack of synchronization

Capacity analysis confirms theoretical gains

Abstract

In this paper, we study an interference relay network with a satellite as relay. We propose a cooperative strategy based on physical layer network coding and superposition modulation decoding for uni-directional communications among users. The performance of our solution in terms of throughput is evaluated through capacity analysis and simulations that include practical constraints such as the lack of synchronization in time and frequency. We demonstrate throughputs significantly larger than the classical time sharing case.