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Use of wireless technology has made the bio-medical data vulnerable to attacks like tampering, hacking etc. This paper proposes the use of digital watermarking to increase the security of an ECG signal transmitted through a wireless network. A low frequency chirp signal is used to embed watermark which is patient’s identification taken as 15 digit… (More)
A two-step energy transfer and data-collection process combined with a mobile agent that acts as a data sink and wireless energy source would support nonstop operation in a wireless sensor network.