Cooperative Spectrum Sensing Algorithm Based on High Contribution Value of Secondary Users in Cognitive Radio

Abstract:

Due to the rapid development of wireless communication technology and the increasing demand for wireless communication, spectrum resources are increasingly scarce. Cooperative spectrum sensing technology has effectively improve the spectrum efficiency, in order to avoid secondary users (cognitive user) causing interference to the primary user (authorized user), this paper proposes a new cooperative spectrum sensing algorithm, When an primary user occurs, the algorithm for different secondary users assign different contribution value, authorized users can quickly detected. The end of each round, the node number of low contribution value, the fusion center will not use its test results. Simulation results show that the false alarm probability and detection probability are better than generally cooperative spectrum sensing algorithms to verify the feasibility of the proposed algorithm.

• Periodical: Applied Mechanics and Materials (Volumes 556-562)
• Pages: 4536-4541
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.556-562.4536
• Online since: May 2014
• Authors: Jun Zhu*, Shan Shan Zhu, Han Sun
• Keywords: Cooperative Spectrum Sensing, Detection Probability, False Alarm Probability

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