This paper presents a novel approach to identifying illegitimate nodes in wireless networks. We demonstrate that, given a sufficiently dense sensor network, we are able to discriminate all network nodes based solely on signal strength datasets. Further, we demonstrate that within the dense sensor network, only a small subset of available sensors are required to effectively discriminate between ...

Abstract—A new method is proposed for online handwriting recognition of Tibetan characters. At first, input pattern is preprocessing. Then, extracting direction feature matrix and edge feature matrix of Tibetan character respectively, they are together formed original feature matrix. It is compressed into final feature matrix with IMLDA (image matrix liner discriminate analysis) technique. Fina...