kumoh national institute of technology
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Optimal Sensing and Interference Suppression in Cognitive Radio Networks using 5G
By : Gaspard Gashema
Date : 2018-10-26
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This paper proposes a technique to enhance both throughput and sensing time in secondary networks under full-duplex cognitive radio (CR). This is achieved by overcoming the power-throughput trade-off caused by self-interference that occurs during transmission. To do so, the CR node controls its transmission power differently over two fractions of the frame duration instead of over the entire frame duration; the latter is used in the simultaneous sensing and transmission (SST) technique. During operation by cognitive users, the protection of the primary receiver against interference is of utmost importance. The user has to monitor the status of the primary receiver in order to prevent the collision of its signals, which could cause interference during transmission. As for the functionality of the proposed approach, it is demonstrated through simulation results and by comparison with the existing SST method. The results prove that our technique outperforms SST in terms of throughput and sensing efficiency.
Attachment 1:   ÷ CORREC.~2.docx(53.4KB)