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Communication dans un congrès

Managing Single or Multi-Users Channel Allocation for the Priority Cognitive Access

Mahmoud Almasri 1 Ali Mansour 2 Christophe Moy 3 Ammar Assoum 4 Denis Le Jeune 2 Christophe Osswald 5
2 Lab-STICC_ENSTAB_CACS_COM
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
5 Lab-STICC_ENSTAB_CID_DECIDE
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (UMR 3192), STIC - Pôle STIC [Brest], Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
Abstract : This manuscript investigates the problem of the Multi-Armed Bandit (MAB) in the context of the Opportunistic Spectrum Access (OSA) case with priority management (e.g. military applications). The main aim of a Secondary User (SU) in OSA is to increase his transmission throughput by seeking the best channel with the highest vacancy probability. In this manuscript, we propose a novel MAB algorithm called ?-UCB in order to enhance the spectrum learning of a SU and decrease the regret, i.e. the loss of reward due to the selection of worst channels. We analytically prove, and corroborate with simulations, that the regret of the proposed algorithm has a logarithmic behavior. So, after a finite number of time slots, the SU can estimate the vacancy probability of channels in order to target the best one for transmitting. Hereinafter, we extend ?- UCB to consider multiple priority users, where a SU can selfishly estimate and access the channels according to his prior rank. The simulation results show the superiority of the proposed algorithm for a single or multi-user cases compared to the well-known MAB algorithms.
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https://hal-ensta-bretagne.archives-ouvertes.fr/hal-03127383
Contributeur : Marie Briec <>
Soumis le : lundi 1 février 2021 - 14:49:51
Dernière modification le : jeudi 25 février 2021 - 16:14:02

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Mahmoud Almasri, Ali Mansour, Christophe Moy, Ammar Assoum, Denis Le Jeune, et al.. Managing Single or Multi-Users Channel Allocation for the Priority Cognitive Access. 2020 28th European Signal Processing Conference (EUSIPCO), Jan 2021, Amsterdam, Netherlands. pp.1722-1726, ⟨10.23919/Eusipco47968.2020.9287628⟩. ⟨hal-03127383⟩

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