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For replica identification and clone detection a centralized system is proposed in this research, where the network has been separated into inspection node and segments. A clone node can be identified by checking the inspection nodes ID along with the Network security (Cryptographic) key. Detection of clone node done using Chord algorithm, where each and every node in the network have assigned with a unique keygenerated at random. Before the data transmission, it has been given with its key and the assigned keys have been verified for the cloned keys already assigned for some other nodes in the network by the witness node. Also the neighbor node ID and it locations have to be listed to those nodes. In this scheme, Energy-Efficient Clustering Protocol (EECP) has been used to implement different energy saving methods.

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In India, there are about 1.5-2 million estimated cancer cases. Early detection can significantly reduce the mortality rate. This paper focuses on planning an ultra-wideband directional Microwave imaging system to detect cancer cells. Microwave imaging uses the scattering wave or reflected wave that arises from the contrast in dielectric properties between normal and malignant breast tissues. Microwave breast imaging, which is non-invasive and harmless to human, offers a promising alternative method to mammography. A compact, ultra wideband (UWB) planar antenna for the Microwave thermography system is designed and simulated using two commercial software, CST Microwave studio and HFSS stimulators. The proposed technique depends on the significant contrast in the dielectric properties of the normal and tumor tissues.

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