Title: Joint optimisation techniques for trade-off aware spectrum sensing in cognitive radio network

Authors: Apurva Daman Katre; T.C. Thanuja

Addresses: Department of Electronics and Communication Engineering, D.Y. Patil College of Engineering, Kolhapur, India; Visvesvaraya Technological University (VTU), Janana Sangama, Machche, Belgavi, Karnataka, 590018, India ' Department of ECE, Visvesvarayya Technological University (VTU), PG Center, Muddenahalli, Chikkaballapura District, 562101, India

Abstract: Cognitive radio (CR) network is considered a promising domain to enhance spectrum efficiency to access underutilised frequency bands. However, due to the influence of channel fading and shadowing, accuracy in primary user (PU) detection by CR gets hampered. This paper designs a joint optimisation technique for spectrum sensing in CR network to optimise energy, delay, and throughput with increased sensing accuracy. Initially, simple energy detection is exhibited for sensing the presence of PU in band. Further, the algorithm is developed to achieve an energy-throughput trade-off, and delay-throughput trade-off. Hence, the optimisation algorithm for detecting energy, reducing delay, and enhancing throughput are developed to optimise complete sensing performance. Furthermore, the joint optimisation model assists in acquiring trade-offs amongst energy, delay, and throughput. The assessment of the technique is performed using delay, energy, and throughput. Moreover, the software-defined radio (SDR) configuration is performed for validating the result.

Keywords: cognitive radio network; spectrum sensing; energy; throughput; delay.

DOI: 10.1504/IJNVO.2022.125997

International Journal of Networking and Virtual Organisations, 2022 Vol.27 No.1, pp.1 - 39

Received: 24 Sep 2021
Received in revised form: 21 Dec 2021
Accepted: 02 Jan 2022

Published online: 05 Oct 2022 *

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