N. Gargouri Ben

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With the rapid development of location-aware devices such as smart phones, Location-Based Services (LBSs) are becoming increasingly popular. Users can enjoy convenience by sending queries to LBS servers and obtaining service information that is nearby. However, these queries may leak the users' locations and interests to the un-trusted LBS servers, leading(More)
This paper considers the tracking control problem for a class of uncertain switched nonlinear cascade systems via the multiple Lyapunov functions (MLFs) method. Each subsystem under consideration is composed of two cascade-connected parts: the null space dynamics part and the range space dynamics part. The two main robust control strategies, nonlinear(More)
In this paper, we deal with the tracking control problem for a class of switched nonlinear systems in lower triangular form subject to full state constraints. In order to prevent states from transgressing the constraints, we employ a Barrier Lyapunov Function, which grows to infinity when its arguments approach domain boundaries. Based on the simultaneous(More)
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