Mohamed Tabaa

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Discrete Wavelet Packet Transformation (DWPT) has been gaining much popularity in recent communication systems as a core transmission function, both as signal analysis or denoising technique. This trend is largely due to the mathematical properties of DWPT, and particularly to its excellent locality in the time-frequency domain. Unfortunately, DWPT is also(More)
In the last few years, a great attention has been paid to wireless communications for body area networks especially since the IEEE 802.15.6 standard. The main objective of this work is to present a good technique for identifying between both Line-Of-Sight (LOS) and Non-Line-Of-Sight (NLOS) propagation schemes for UWB both of both on-body and off-body(More)
The main objective of this research work is to propose a new method of communication adapted to sensor networks for both one-to-many and many-to-one topologies. This type of networks is characterized by its price, its size and its energy consumption. In the last few years, several recent developments concern these networks but rare of them propose a(More)
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