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- W2998888099 abstract "In this paper, a Transmitting–Receiving–Sensing (TRS) mode of OFDM-based Full-Duplex Cognitive Radio (FD-CR) is proposed. The new mode aims at monitoring the Primary User (PU) activities on the operating channel while establishing an in-band full-duplex communication between two communicating Secondary Users (SUs), i.e. SUs transmit and receive simultaneously on the same frequency band. Assuming that the primary activity covers all the operating band when PU is active, Spectrum Sensing is performed on some Sub-Carriers (SCs) which are neutralized by the two communicating SUs. Letting some SCs null by both SUs helps to accurately performing the spectrum sensing on these SCs since no residual self-interference neither secondary transmission are present. When PU is detected on these SCs, then we consider that he becomes active again; Then SUs should vacate the channel. For the proposed mode, false alarm, detection and collision probabilities are derived in addition to the throughput rate. An optimal selection of the sensing SCs per OFDM symbol is derived with respect to a maximal tolerable rate of collision between PU and SU transmission. Numerical results corroborate the effectiveness of our proposed mode in terms of the PU awareness and the secondary throughput rate." @default.
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- W2998888099 date "2020-04-01" @default.
- W2998888099 modified "2023-10-17" @default.
- W2998888099 title "Simultaneous Transmitting–Receiving–Sensing for OFDM-based Full-Duplex Cognitive Radio" @default.
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- W2998888099 doi "https://doi.org/10.1016/j.phycom.2019.100987" @default.
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