Background: Due to the huge development of wireless devices and mobile data traffic
had gained attention towards identifying accurate solutions for more proficient utilization of the
wireless spectrum. An essential issue confronting the future in wireless systems is to identify the
appropriate spectrum bands to satisfy the request of future administrations. While the greater part
of the radio spectrum is allocated to various services, applications and users show that spectrum
usage is quite low.
Methods: The spectrum sensing is performed at the start of each time slot before the data transmission.
As a promising framework to improve the spectrum utilization, Cognitive Radio (CR)
technique has the immense potential to meet such a necessity by permitting unlicensed users to exist
together in licensed bands. In this paper Cognitive radio and Full-Duplex (FD) based two-way
relay communications are developed to enhance spectrum utilization for multichannel and to decrease
the false alarm rate.
Results & Conclusion: To solve the optimization problems in spectral efficiency, soft computing
techniques is proposed to minimize the self-interference and delay to the licensed users. In this
proposed work the kurtosis parameter is used for channel detection to determine whether the signal
is present or not. The performance results of the proposed method are evaluated in terms of
spectral allocation and outage probability which achieves better performance than the existing
Multi-Objective Genetic Algorithm (MOGA) optimization.
Keywords: Cognitive radio, Full Duplex, Two-way Relay, Sensing Spectrum, Optimization and Soft Computing Technique
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