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Spectrum Sensing and Throughput Analysis for Full-Duplex Cognitive Radio with Hardware Impairments

Abbass Nasser 1 Ali Mansour 2, 3 K. Yao 1 H. Abdallah 4 A. Abdul Ghani 4
2 Lab-STICC_ENSTAB_CACS_COM
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
3 Pôle STIC_IDM
ENSTA Bretagne - École Nationale Supérieure de Techniques Avancées Bretagne
Abstract : In Full-d uplex Cognitiv e Radios, the silen t period of the Secondary User (SU) during the Spectrum Sensing can be elimina ted by appl ying the Self -Interf erence Cancella tion (SIC). Due to the channel estima tion error and the hardw are imperf ections (the Phase Noise and the Non-Linear Distortion (NLD)) SIC is not perf ectl y perf ormed and resul ts in the Resid ual Self -Interf erence (RSI) which a ects the Spectrum Sensing reliability . In this paper , the e ect of RSI on Spectrum Sensing is anal yticall y deriv ed by expressing the detection (pd ) and false alarm (pf a) probabilities under FD in terms of the ones under Half -Duplex (HD) (where SU shoul d remain silen t during the Spectrum Sensing period). In addition, an algorithm is proposed to suppress the NLD and improv es the Spectrum Sensing perf ormance. Hereinafter , the SU throughput under FD is anal ysed comparing to HD by deriving the upper and lower bounds to be respected by pf a and pd respectiv ely in order to make FD beneficia rela tiv e to HD.
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Dernière modification le : mercredi 24 juin 2020 - 16:19:51
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Abbass Nasser, Ali Mansour, K. Yao, H. Abdallah, A. Abdul Ghani. Spectrum Sensing and Throughput Analysis for Full-Duplex Cognitive Radio with Hardware Impairments. EAI Endorsed Transactions on Cognitive Communications, EAI Publications, 2017, 3 (11), pp.e4. ⟨10.4108/eai.31-5-2017.152556⟩. ⟨hal-01699303⟩

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