In ad hoc networks, node mobility causes the network topology to change dynamically over time, which complicates important tasks such as routing and flow control. We propose a distributed scheme for accurately and efficiently tracking the mobility of nodes in ad hoc networks. A first-order autoregressive model is used to represent the evolution of the mobility state of each node, which consists...

In this paper we study the problem of tracking a reference signal from the H" point, of view. As opposed to general Woo problems, whcrc only suboptimal solutions are obtained, wc show that for both the full information arid measurement, feedback tracking problems the H""-optimal solutions can be explicitly found. The results also indicate an interesting dichotomy between minimum phase and non-m...

The problem of reliable robust H∞ tracking control for a class of Lur’e singular systems with parameter uncertainties is studied. The uncertainty is assumed to be convex polytopic. A practical and general failure model of actuator and sensor is considered. Some sufficient conditions about reliable robust H∞ tracking control are presented for the case of actuator and sensor failures in terms of ...

in this paper, an adaptive fuzzy control scheme is proposed for a class of perturbed strict-feedback nonlinear systems with unknown discrete and distributed time-varying delays, and the proposed design method does not require a priori knowledge of the signs of the control gains.based on the backstepping technique, the adaptive fuzzy controller is constructed. the main contributions of the paper...

phase sensitive detector described here has two principal applications: a- to produce a d.c out put proportional to- the amplitude of an incoming a,c signal and indicate, by the outut polarity, the phase of the signal with respect to an internal reference. b- to detect the presence of a signal of known phase and frequency which would otherwise be lost in «background noise» and to measure its am...

In this paper we study the problem of tracking a reference signal from the H 1 point of view. As opposed to general H 1 problems, where only suboptimal solutions are obtained, we show that for both the full information and measurement feedback tracking problems the H 1-optimal solutions can be explicitly found. The results also indicate an interesting dichotomy between minimum phase and non-min...

Given a geometric path, the Time-Optimal Path Tracking problem consists in finding the control strategy to traverse the path time-optimally while regulating tracking errors. A simple yet effective approach to this problem is to decompose the controller into two components: (i) a path controller, which modulates the parameterization of the desired path in an online manner, yielding a reference t...

We study tracking control for a nonlinear moving water tank system modelled by the linearized Saint-Venant equations, where output is given position of and input force acting on it. For reference signal, objective that error evolves within pre-specified performance funnel. Exploiting recent results in funnel control, this can be achieved showing inter alia system's internal dynamics are bounded...