LT Yang

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Wireless Sensor networks include large amount of low power, low priced sensor nodes generally deployed in hostile and harsh environment to sense, collect and transmit data to sink at far distance. Clustering has been widely studied to enhance the lifetime of WSN by reducing the number packet transmission. In clustering, the nodes selected as cluster head,(More)
The recent miniaturization of GPS receivers has made it possible to design a mobile "personal safety" system to help individuals avoid mapped landmines left over from previous conflicts. The handheld system continually compares the bearer's GPS-reported position with a compressed map of mined danger areas, sounding an alarm on approach. Two kinds of mobile(More)
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