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W1977314652 abstract "In a cognitive radio (CR) network, the channel sensing scheme used to detect the existence of a primary user (PU) directly affects the performances of both CR and PU. However, in practical systems, the CR is prone to sensing errors due to the inefficiency of the sensing scheme. This may yield primary user interference and low system performance. In this paper, we present a learning-based scheme for channel sensing in CR networks. Specifically, we formulate the channel sensing problem as a partially observable Markov decision process (POMDP), where the most likely channel state is derived by a learning process called Fuzzy Q-Learning (FQL). The optimal policy is derived by solving the problem. Simulation results show the effectiveness and efficiency of our proposed scheme." @default.
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W1977314652 date "2014-01-01" @default.
W1977314652 modified "2023-10-10" @default.
W1977314652 title "Optimal Channel-Sensing Scheme for Cognitive Radio Systems Based on Fuzzy Q-Learning" @default.
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W1977314652 doi "https://doi.org/10.1587/transcom.e97.b.283" @default.
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