Hybrid Automatic ReQuest (HARQ) protocol enables reliable communications in wireless systems. Usually, several parallel streams are sent in successive timeslots following a time-sharing approach. Recently, multi-layer HARQ has been proposed by superposing packets within a timeslot. In this paper, we evaluate the potential of this multi-layer HARQ by playing with some design parameters. We show that a gain in throughput is only obtained at mid-Signal-to-Noise Ratio (SNR).
@article{arxiv.2004.01090,
title = {Analysis of Multi-Messages Retransmission Schemes},
author = {Alla Khreis and Francesca Bassi and Philippe Ciblat and Pierre Duhamel},
journal= {arXiv preprint arXiv:2004.01090},
year = {2020}
}