Power Allocation for ARQ Two-Hop Cooperative Networks for Ultra-Reliable Communication

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference contributionScientificvertaisarvioitu

24 Lataukset (Pure)

Abstrakti

We analyze the performance of amplify-and-forward (AF) automatic repeat request (ARQ) for a two-hop cooperative system with reliability constrains. For this setup, we first derive the closed-form outage probability expression. Next, we present a power allocation scheme that allows us to achieve a target outage probability, while minimizing the outage-weighted average power expenditure for asymmetric power allocation between the source and relay. This is cast as an optimization problem, and the optimal power allocation (OPA) is obtained in closed form by invoking the Karush-Kuhn-Tucker (KKT) conditions. We evaluate numerically the OPA strategy between different AFARQ transmission rounds and we show that the proposed scheme provides large power gains with respect to the optimized pointto-point ARQ scheme, as well as with respect to the equal power allocation (EPA) strategy.

AlkuperäiskieliEnglanti
OtsikkoProceedings of the 2020 IEEE International Conference on Communications, ICC 2020
KustantajaIEEE
Sivumäärä7
ISBN (elektroninen)9781728150895
DOI - pysyväislinkit
TilaJulkaistu - heinäkuuta 2020
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaIEEE International Conference on Communications - Virtual Conference, Dublin, Irlanti
Kesto: 7 kesäkuuta 202011 kesäkuuta 2020

Julkaisusarja

NimiIEEE International Conference on Communications
KustantajaIEEE
ISSN (painettu)1550-3607
ISSN (elektroninen)1938-1883

Conference

ConferenceIEEE International Conference on Communications
LyhennettäICC
MaaIrlanti
KaupunkiDublin
Ajanjakso07/06/202011/06/2020

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  • Siteeraa tätä

    Dosti, E., Charalambous, T., & Wichman, R. (2020). Power Allocation for ARQ Two-Hop Cooperative Networks for Ultra-Reliable Communication. teoksessa Proceedings of the 2020 IEEE International Conference on Communications, ICC 2020 [9149234] (IEEE International Conference on Communications). IEEE. https://doi.org/10.1109/ICC40277.2020.9149234