Flexible Multi-Bit Feedback Design for HARQ Operation of Large-Size Data Packets in 5G

Saeed Khosravirad, Luke Mudolo, Klaus I. Pedersen

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

3 Citationer (Scopus)
998 Downloads (Pure)

Abstrakt

A reliable feedback channel is vital to report decoding acknowledgments in retransmission mechanisms such as the hybrid automatic repeat request (HARQ). While the feedback bits are known to be costly for the wireless link, a feedback message more informative than the conventional single-bit feedback can increase resource utilization efficiency. Considering the practical limitations for increasing feedback message size, this paper proposes a framework for the design of flexible-content multi-bit feedback. The proposed design is capable of efficiently indicating the faulty segments of a failed large-size data packet thanks to which the transmitter node can reduce the retransmission size to only include the initially failed segments of the packet. We study the effect of feedback size on retransmission efficiency through extensive link-level simulations over realistic channel models. Numerical result present significant savings in retransmission resources offered by the proposed flexible-content feedback design.
OriginalsprogEngelsk
TitelIEEE Proceedings of VTC-2017 spring, June 2017
Antal sider5
ForlagIEEE
Publikationsdatojun. 2017
ISBN (Elektronisk)978-1-5090-5932-4
DOI
StatusUdgivet - jun. 2017
BegivenhedVTC Spring 2017 -
Varighed: 4 jun. 20177 jun. 2017

Konference

KonferenceVTC Spring 2017
Periode04/06/201707/06/2017
NavnI E E E V T S Vehicular Technology Conference. Proceedings
ISSN1550-2252

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  • Citationsformater

    Khosravirad, S., Mudolo, L., & Pedersen, K. I. (2017). Flexible Multi-Bit Feedback Design for HARQ Operation of Large-Size Data Packets in 5G. I IEEE Proceedings of VTC-2017 spring, June 2017 IEEE. I E E E V T S Vehicular Technology Conference. Proceedings https://doi.org/10.1109/VTCSpring.2017.8108610