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22nd IEEE Personal Indoor Mobile Radio Communications - PIMRC'11 - Wide Area Cellular Communications, Canada (2011)
Early-Drop based Hybrid ARQ in a Cross-layer context
Sébastien Marcille 1, 2, Philippe Ciblat 3, Christophe Le Martret 2

We aim to study a specific cross-layer optimized Hybrid Automatic Retransmission reQuest (HARQ) recently introduced and called early-drop HARQ. We remind, for that allocation strategy, that instead of giving a transmission credit per MAC packet (as usually done) it is proposed to share the transmission credit among all the MAC packets belonging to the same IP packet. The early-drop version stops the retransmission as soon as the number of remaining MAC packets is higher than the number of possible transmission attempts. As the early-drop has never been analyzed neither through simulations or analytical derivations, the purpose of this paper is to fill this gap. As the packet error rate and the delay are not modified, we only focus on the efficiency which is expressed in closed-form.
1:  Laboratoire Traitement et Communication de l'Information [Paris] (LTCI)
Télécom ParisTech – CNRS : UMR5141
2:  Thales Communications [Colombes]
3:  Département Communications et électronique (COMELEC)
Institut Télécom-Télécom Paristech
Computer Science/Networking and Internet Architecture

Computer Science/Information Theory

Mathematics/Information Theory
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