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Jiang, Lijun; Zhang, Xiaoge
Journal of physics. Conference series, 03/2021, Volume: 1827, Issue: 1Journal Article
Abstract The openness and complexity of wireless channels make collaborative spectrum sensing vulnerable to malicious users1. Therefore, it is very important to identify the attributes of malicious users before collaborative spectrum awareness networks make data fusion decisions. In this paper, a method combining reinforcement learning and cognitive user credit model is proposed, in which the maximum and minimum eigenvalues of signals are used as the initial information for exchange, and the whole sensing network tends to diffuse and fuse nodes with high credit. Finally, the convergence value of the whole network is compared with the decision threshold to complete collaborative spectrum sensing. By combining with consensus fusion network and traditional collaborative sensing algorithm, the proposed method can effectively improve the convergence speed of fusion network and shorten the sensing time on the premise of effectively identifying malicious users2, so as to improve the spectrum sensing performance and make the collaborative sensing network more adaptive and stable.
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