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In this paper, a new spectrum sensing (SS) method, called maximum-to-mean energy detector (MMED), is proposed. Considering a wireless communication system with many angles of arrival (AoA), the suggested method is based on beamforming and the ratio of the maximum energy to the mean one of the received signal. The proposal is totally blind and it does not require the knowledge of the signal, the channel...
Cognitive radio is the fundamental component for the future generations of wireless communication. Indeed, by sensing its environment, the cognitive radio will be able to exploit unused frequencies for opportunistic wireless communications. In this paper, a new sensing method in the narrowband context is proposed for ray propagation channels by combining the spatial scanning technique with the maximum...
In future cognitive radio networks, radio devices will observe by sensing to detect non-occupied bandwidth and interferences. The result of this observation process will then be used by the cognitive manager to adapt the transmitter to its environment, at all layers. The quality of the observation process is thus of primary importance. In this paper, we are interested in the statistical characterization...
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