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Spectrum occupancy measurement and analysis is a very important aspect in frequency resource planning by the reason of frequency shortage for the increasing wireless systems. It is also useful in spectrum sensing in the context of cognitive radio, especially in unlicensed band. Given that, a dynamic decision threshold computing method based on SOM Neural Network in spectrum occupancy analysis is proposed...
Due to the limitation of the energy, the performances and applications were constrained of the pure batteries powered wireless sensor networks (WSNs). WSNs with energy harvesting extracting energy from the surrounding environment, supplement energy to the sensor nodes, can be significant prolong the lifespan of WSNs, or even make WSNs running for perpetual. In order to determine the node energy harvesting...
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