Rachid Latif

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Today bio-manufacturers propose various electrocardiogram (ECG) instruments that have addressed a wide variety of clinical issues. However, the discovery of new applications in ECG devices that provide doctors with the right information at the right time and in the right way will help them to provide a highest quality care possible. In this paper, we focus(More)
A time-varying autoregressive ldquoTVARrdquo approach is used for modeling nonstationary signals, and frequency information is then extracted from the TVAR parameters. In this study, we present the application of the TVAR spectrum on the acoustic signal backscattered by an elastic tube. The parameters of this model are determined by the adaptive algorithm.(More)
The IEEE 802. 15. 6 is a new communication standard on Wireless Body Area Network (WBAN) for short-range, wireless communications in the vicinity of, or inside a human body. It is used for medical and non-medical applications. The IEEE 802. 15. 6 draft defines a Medium Access Control (MAC) layer compatible with several Physical layers (PHY), it also(More)
In a mobile ad hoc network (MANET), a source node must rely on intermediate nodes to forward its packets along multihop routes to the destination node. Due to the lack of infrastructure in such networks, secure and reliable packet delivery is challenging. The performance of a Mobile Ad hoc Network (MANET) is closely related to the capability of the(More)
IWBSN (Implantable Wireless Body Sensor Network) becomes nowadays an important area of research in computer science and healthcare application industries for improving the quality of life. Communication with implanted medical devices is considered as a key to effective diagnosis and therapy. These biosensors are implanted inside the patient body to measure(More)
In the last years, wireless sensor networks (WSNs) have gained increasing attention from both research community and actual users. Since sensor nodes are battery-powered devices, the main issue to resolve is to minimize the energy consumption of nodes so that the network lifetime can be extended to reasonable periods of time. Several algorithms were(More)
BACKGROUND Since the electrocardiogram (ECG) signal has a low frequency and a weak amplitude, it is sensitive to miscellaneous mixed noises, which may reduce the diagnostic accuracy and hinder the physician's correct decision on patients. METHODS The dual tree wavelet transform (DT-WT) is one of the most recent enhanced versions of discrete wavelet(More)
The first method that was developed to deal with the SLAM problem is based on the extended Kalman filter, EKF SLAM. However this approach cannot be applied to a large environments because of the quadratic complexity and data association problem. The second approach to address the SLAM problem is based on the Rao-Blackwellized Particle filter FastSLAM, which(More)