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The security problem of screen image leakage from a display unit has become more and more serious with the rapid speed of signal transmission technology. This paper presents a novel investigation on the characteristics of the power line compromising channel. By introducing an echo-based power line model, a measurement system has been developed to draw a preliminary conclusion on the low-passed and...
The electromagnetic waves emitted from devices can be a source of information leakage and can cause electromagnetic compatibility (EMC) problems. Electromagnetic radiation signal from computer display can be seen as a computer security risk if the radiation signal is intercepted and reconstructed. In addition to the image information displayed by the computer, electromagnetic radiation leaks the hardware...
A Polarized OFDM (POFDM) scheme is proposed for the wireless depolarized channel. Through such scheme, each sub-carrier's polarization state, amplitude and phase can be modulated to bear information, and the spectrum efficiency can be further improved. Consider the multi-path fading channel, the channel caused depolarization impairments to POFDM are quantitatively analyzed; to mitigate such impairments,...
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