Analysis of Multi-Messages Retransmission Schemes

Alaa Khreis (1) , Francesca Bassi (2) , Philippe Ciblat (3, 4, 5) , Pierre Duhamel (6)

1 Huawei Technologies France
2 IRT SystemX
3 IP Paris - Institut Polytechnique de Paris
4 COMELEC - Département Communications & Electronique
5 COMNUM - Communications Numériques
6 L2S - Laboratoire des signaux et systèmes

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).

Domains: Signal and Image Processing

Alaa Khreis, Francesca Bassi, Philippe Ciblat, Pierre Duhamel. Analysis of Multi-Messages Retransmission Schemes. International Symposium on Wireless Communication Systems, Sep 2021, Berlin, Germany. ⟨hal-03282041⟩