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Communication dans un congrès

Novel sensing mechanism for full-duplex secondary users in cognitive radio

M.Reda Mortada 1 Abbass Nasser 1 Ali Mansour 1 Koffi-Clément Yao 2
1 Lab-STICC_ENSTAB_CACS_COM
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
2 Lab-STICC_UBO_CACS_COM
IBNM - Institut Brestois du Numérique et des Mathématiques, Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
Abstract : In this paper, we present a new Transmitting-Receiving-Sensing (TRS) mechanism for full-duplex cognitive radio. Our proposed mechanism permits Secondary Users (SUs) to establish a bidirectional communication over the same frequency band while keeping aware of the Primary User (PU) activity status. The activity period of SU in our proposed mechanism is composed of two stages: In the first stage SU communicates in bidirectional way with his peer SU. At the second stage, one of the SUs becomes silent in order to do not disturb his peer, which performs a spectrum sensing and remains active at the same time using self-interference cancellation technique. The probability of collision related to our mechanism is derived as well as the probability of waste and the average throughput. Our simulation results show that the proposed mechanism can significantly decrease the probability of collision at low SNRp (Signal to Noise Ratio of PU at SU).
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https://hal.archives-ouvertes.fr/hal-02434618
Contributeur : Marie Briec <>
Soumis le : vendredi 10 janvier 2020 - 11:12:54
Dernière modification le : mercredi 24 juin 2020 - 16:19:56

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M.Reda Mortada, Abbass Nasser, Ali Mansour, Koffi-Clément Yao. Novel sensing mechanism for full-duplex secondary users in cognitive radio. 27th European Signal Processing Conference, EUSIPCO 2019, Sep 2019, A Coruna, Spain. ⟨10.23919/EUSIPCO.2019.8902697⟩. ⟨hal-02434618⟩

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