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In this paper, we study the existing MAC protocols for Wireless Body Area Networks. We compare quantitatively and qualitatively these protocols based on a set of proposed requirements, to sort out the MAC protocols that support all the stringent requirements of WBAN. We analyze, discuss and suggest open issues in the field of MAC protocol design as a reference for future contributions and developments...
A smart city’s main purpose is to provide intelligent responses to different problems of the rapid urban population growth. For instance, integrating fleet management solutions into intelligent transportation systems (ITS) can efficiently resolve transportation problems relying on each vehicle information. Usually, the position estimate is ensured by the integration of the Global Positioning System...
Global Navigation Satellite Systems (GNSS) have become an integral part of all applications where mobility plays an important role. However, The performances of GNSS-based positioning systems can be affected in constrained environments (urban and indoor environments), due to masking of satellites by buildings and multipath effects. In this paper, a comparative investigation on classical GNSS localization...
A smart city is emerging as an application of information and communication technologies to mitigate the problems generated by the urban population growth. One of the smart city solutions is to establish an efficient fleet management relating to the use of a fleet of vehicles (e.g., ambulances and police vehicles). The most basic function in a fleet management system is the real time vehicle tracking...
Global Positioning System (GPS) and Inertial Navigation Systems (INS) are usually used for real time vehicle positioning. Unfortunately, this high cost solution still suffers from GPS outages due to multipath errors. To perform data fusion, the Extended Kalman filter (EKF) has been widely adopted as an optimal estimation tool for non-linear systems. However, it has some drawbacks in terms of stability,...
Today, wireless sensor networks designers do not fully benefit from the power of widely recognized UML (and its profiles including SysML) when it comes to modeling all aspects of a wireless sensor network. The modeling process is usually restricted to the software and therefore only partially supports the wireless sensor network's design. Among the UML profiles family, there is a language that supports...
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