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With the extensive application of RFID technology, people pay more and more attention to its security and privacy issues. Currently, security issues have become major factors which impede the large-scale applications of RFID technology. In this paper, security issues existing in RFID system are analyzed and the main authentication mechanisms proposed at(More)
In this paper, a fast motion estimation algorithm based on the spatial correlation of motion vectors is presented. The current block is classified as correlation-type block or independent-type block in the proposed algorithm, by utilizing the correlation information of three neighboring motion vectors. In order to reduce the computational complexity of(More)
A remote interactive consultation system based on wireless sensor networks is proposed for family health care works and non-hospital special case patient monitoring. The sensor nodes are integrated into a local area network to collect a variety of human physiological information, which is uploaded to Internet through the Code-Division Multiple Access (CDMA)(More)
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