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Adaptive Power Allocation for Noncooperative OFDM Systems in UWA Interference Channels

Antony Pottier 1, 2 François-Xavier Socheleau 1, 2 Christophe Laot 1, 2
1 Lab-STICC_TB_CACS_COM
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
Résumé : Noncooperative underwater acoustic (UWA) communication systems are prone to interfere with each other since the limited resource offered by the channel is not regulated by any standard. Mutual inteferences can significantly degrade the performances of such systems and it is necessary to find policies allowing UWA devices to access the same physical resource. In this paper, we consider noncooperative UWA OFDM systems competing to access the same portion of the spectrum. We show that an efficient decentralized power allocation strategy can be achieved when all the communication links apply a waterfilling policy only based on little knowledge about their environment. Numerical simulations performed with real UWA channels sounded at-sea demonstrate the relevance of our approach.
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https://hal.archives-ouvertes.fr/hal-01514722
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Submitted on : Friday, June 11, 2021 - 9:00:30 AM
Last modification on : Monday, October 11, 2021 - 2:23:44 PM
Long-term archiving on: : Sunday, September 12, 2021 - 6:23:03 PM

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Antony Pottier, François-Xavier Socheleau, Christophe Laot. Adaptive Power Allocation for Noncooperative OFDM Systems in UWA Interference Channels. UComms 2016 : Underwater Communications and Networking conference, Aug 2016, Lerici, Italie. pp.1 - 5, ⟨10.1109/UComms.2016.7583460⟩. ⟨hal-01514722⟩

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