Enhanced HARQ for Delay Tolerant Services in Mobile Satellite Communications

TL;DR

This paper proposes an enhanced HARQ scheme for mobile satellite communications that improves efficiency for delay-tolerant services by using mutual information estimation, outperforming classical IR HARQ in simulations.

Contribution

The paper introduces a novel HARQ method leveraging mutual information estimation to enhance efficiency in mobile satellite channels for delay-tolerant services.

Findings

Improved efficiency over classical IR HARQ

Maintains acceptable delay for delay-tolerant services

Validated through simulation comparisons

Abstract

The objective of our paper is to improve efficiency (in terms of throughput or system capacity) for mobile satellite communications. In this context, we propose an enhanced Hybrid Automatic Repeat reQuest (HARQ) for delay tolerant services. Our proposal uses the estimation of the mutual information. We evaluate the performance of the proposed method for a land mobile satellite channel by means of simulations. Results are compared with those obtained with a classical incremental redundancy (IR) HARQ scheme. The technique we propose, shows a better performance in terms of efficiency while maintaining an acceptable delay for services.