Parametric Optimization of Improved Sensing Scheme in Multi-antenna Cognitive Radio Network over Erroneous Channel

Bachan, P.; Ghosh, Samit Kumar; Trankatwar, Sachin

doi:10.1007/978-981-15-8335-3_41

Cited by 1 publication

(1 citation statement)

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“…CSS could overcome fading and shadow in wireless channels. There are two basic structures of CSS, centralised and distributed [13,14]. In CSS, SUs sense the spectrum separately and transmit their local decisions to a fusion centre (FC).…”

Section: Introductionmentioning

confidence: 99%

Improvement of spectrum sensing performance in cognitive radio using modified hybrid sensing method

Abed

Abdullah

2022

Acta Polytech

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Cognitive radio (CR) is a wireless technology for increasing the bandwidth usage. Spectrum sensing (SS) is the first step in CR. There are three basic techniques in SS, energy detection (ED), matched filter (MF), and cyclostationary detection (CFD). These techniques have many challenges in performance detection (Pd) and computational complexity (CC). In this paper, we propose a hybrid sensing method that consists of MF and CFD to exploit their merits and overcome their challenges. The proposed method aims to improve Pd and reduce CC. When MF hasn’t had enough information about PU, it switches to CFD with a reduction of CC in both MF and CFD. The proposed method is simulated under fading with cooperative and non-cooperative scenarios, measured using Pd and CC ratio Cratio, and evaluated by comparing it with traditional and hybrid methods in the literature. The simulation results show that the proposed method outperforms other methods in Pd and Cratio. For example, at Eb/No equal to 0 dB under the Rayleigh fading channel, the Pd in the proposed method increased by 38 %, 28 %, 28 %, and 18 % as compared with the modified hybrid method, traditional hybrid method, traditional CFD method, and traditional MF method in the literature, respectively.

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Section: Introductionmentioning

confidence: 99%