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SPA/SEMA (Simple Power/Electro-magnetic Analysis) attacks performed on public-key cryptographic modules implemented on FPGA platforms are well known from the theoretical point of view. However, the practical aspect is not often developed in the literature. But researchers know that these attacks do not always work, like in the case of an RSA accelerator. Indeed, SEMA on RSA needs to make a difference...
This paper treats the digital design of a probabilistic energy equalizer for impulse radio (IR) UWB receiver in high data rate (100 Mbps). The aim of this study is to bypass certain complex mathematical function as a chi-squared distribution and reduce the computational complexity of the equalizer for a low cost hardware implementation. As in Sub-MAP algorithm, the max* operation is investigated for...
This paper addresses the hardware implementation feasibility assessment of a probabilistic energy equalizer for UWB impulse radio (IR) transmission. The receiver is based on energy detection and targets data rates greater than 100 Mbps. The aim of this study is to bypass certain complex mathematical functions like the chi-squared (??2) distribution and approximate it by functions easier to implement...
The Expectation-Maximization (EM) algorithm is studied to perform channel estimation in a low cost and high data rate impulse radio UWB receiver. The system under consideration uses a pulse position modulation with a simple analog energy detector. In order to overcome the problems inherent to high data rates, such as inter-symbol interferences, a probabilistic equalizer is used. The EM algorithm and...
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