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Sensing falsification is a key security threat in cooperative spectrum sensing in cognitive radio networks. Intelligent malicious users (IMUs) adjust their malicious behaviors according to their objectives and the network’s defense schemes. Without long-term collection of information on users’ reputation, the existing schemes fail to thwart such malicious behaviors. In this paper, we construct a joint...
In cognitive radio networks, multiple discontinuous spectrum opportunities are detected by spectrum sensing and utilized together to satisfy the service requirement by spectrum aggregation. In this paper, we develop an analytical framework for joint spectrum sensing and access scheme based on Partially Observable Markov Decision Process (POMDP). Considering the hardware limitations, the spectrum aggregation...
Path planning for redundant robotic manipulators received continuous interest in the past decades. Most efforts focused on random sampling-based methods, such as probabilistic roadmap method (PRM) and rapidly-exploring random tree (RRT), since they are suitable for planning in high-dimensional configuration space. Given the workspace goal position and orientation of the end-effector, however, explicitly...
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