Cooperation can considerably increase spectrum sensing performance in cognitive radio (CR) networks. We propose an unique cooperative spectrum sensing (CSS) frame structure in which CR users simultaneously perform spectrum sensing and data transmission over two separate parts of the main user (PU) spectrum band in this study. The energy detection sensing scheme is utilised to demonstrate that there is one optimal sensing bandwidth for the CR network that gives the best throughput. We focus on the appropriate sensing parameters of the proposed sensing technique to enhance the CR network's throughput while ensuring that PUs are adequately protected and that the requisite bandwidth for possible CR user data transmission is available. Simple methods are also developed that jointly optimise the sensing bandwidth and the final judgement threshold. In comparison to a CR network that simply optimises the sensing bandwidth or the final decision threshold, our simulation results suggest that optimising both the sensing bandwidth and the final decision threshold together will boost the throughput of the CR network.
Author(S) Details
Hang Hu
Information and Navigation College, Air Force Engineering University, Xi’an 710077, China.
Hang Zhang
College of Communications Engineering, Army Engineering University of PLA, Nanjing 210007, China.
View Book:- https://stm.bookpi.org/NPER-V6/article/view/5503
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