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In this paper, we offer a new type of vehicle detection method based on the strength of the signal transmission with adopting CC1101 wireless communication chip, and RSSI (Received Signal Strength Indication) value of the data receiving node is different when there is a car or no car on the parking space. Through a large number of nodes arranged on the parking space, the data receiving node sends...
With the development of wireless communication technology, offering wideband access for the rural and remote area has become an urgent demand of the market. IEEE 802.22 wireless regional access network is required to use the TV frequency band with no harmful interference to TV user or wireless microphone. Cognitive radio is its main technology to detect the environment and access the spectrum dynamically...
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