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- Ad hoc networks (Computer networks) | Wireless communication systems in medical care | Medical emergencies -- Radio networks | Cross-layer designs (Telecommunications) | Wireless communication systems -- Design and construction (1)
- Comfort applications (1)
- Correction current (CC) method (1)
- File transfer (1)
- Gaussian beam scattering from (1)
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- Geo-routing (1)
- Infotainment (1)
- Intelligent transportation systems | Traffic safety | Vehicular ad hoc networks (Computer networks) (1)
- Model predictive control (1)
- Piecewise affine system identification and its application to a MEMS switch (1)
- Rough surface scattering (1)
- Timed continuous petri nets (1)
- Urban vehicular location service (1)
- V2V (1)
- Vehicle to vehicle (1)
Articles 1 - 6 of 6
Full-Text Articles in Engineering
Gaussian Beam Scattering From A Deterministic Rough Metal Surface, Qi Wang
Gaussian Beam Scattering From A Deterministic Rough Metal Surface, Qi Wang
Theses
A full-wave theory of plane wave scattering from rough surfaces called the Correction Current (CC) method was recently developed for the two-dimensional scatter problem that have a one-dimensional roughness profile. The method involves a primary field and radiation modes that are plane-wave-type fields that satisfy the boundary conditions at the rough surface. These fields do not satisfy Maxwell's source free equations, but they are forced to satisfy Maxwell's equations with distributed sources upon the introduction of fictitious volume currents distributions which correct for the field errors. Additionally, current sheet distributions are introduced which generate a radiation modal field that satisfies …
Model Predictive Control Of Timed Continuous Petri Nets, Huaiyu Zhan
Model Predictive Control Of Timed Continuous Petri Nets, Huaiyu Zhan
Theses
This thesis addresses the optimal control problem of timed continuous Petri nets. The theory of Model Predictive Control (MPC) is first discussed. Then continuous Petri nets (PN) are introduced as a powerful tool for modelling, simulation and analysis of discrete event/continuous systems. Their useful capabilities are studied. Finally, a macroscopic model based on PN as a tool for designing control laws that improve the behavior of traffic systems is given. The goal is to find an approach that minimizes the total delay of cars in an intersection by computing the switching sequence of the traffic lights. The simulation results show …
A New Algorithm For Piecewise Affine System Identification And Its Application To A Mems Switch, Niel Canty
A New Algorithm For Piecewise Affine System Identification And Its Application To A Mems Switch, Niel Canty
Theses
Over the past ten years, hybrid systems, and piecewise affine (PWA) systems in particular have been viewed as viable option for modelling nonlinear systems. Many methods have been developed to cater for the identification of a PWA model from input/output data. This thesis focuses on the clustering based identification approach. This method uses a Least Squares (LS) identification algorithm which, in this thesis, is shown to perform poorly in practice. The clustering based algorithm is also limited by the number of initialisation parameters that need to be chosen. These parameters have a significant influence on the resulting PWA model accuracy, …
Service And Communication Management In Cooperative Vehicular Networks, Olivia Brickley
Service And Communication Management In Cooperative Vehicular Networks, Olivia Brickley
Theses
The concept of Intelligent Transportation Systems (ITS) presents new R&D challenges for the transportation and ICT sectors and is currently receiving considerable interest from the research community. The primary objective of ITS is the creation of advanced road traffic systems for improved traffic safety, efficiency, and travelling comfort. Basic vehicle and roadside infrastructure collaboration allows for an increase in efficiency and safety and acts as the foundation for an extensive service set to achieve these ITS goals. Applications such as journey planning, automatic tolling and emergency warnings, among others, are envisaged in a system which can potentially reform modern transportation. …
Location Management And Hybrid Geo-Routing For Urban Vehicular Networks, Aisling O'Driscoll
Location Management And Hybrid Geo-Routing For Urban Vehicular Networks, Aisling O'Driscoll
Theses
In recent years the motivation for comfort applications e.g. infotainment, file exchange and vehicle to vehicle (V2V) multiplayer gaming amongst others, has emerged as an active area of vehicular communications and network research. The success of such applications relies on the ability of a geo-routing protocol to deliver communication packets in a frequently disconnected communication environment. To do this, the location of the destination vehicle must first be determined and secondly, must reliably deliver the packet from source to destination. To determine the location of a target vehicle towards which packets can be forwarded, geo-routing algorithms utilise a location service …
A Novel Waveform For Emergency Services Mobile Ad-Hoc Networks : The Link Layer Perspective, Sebastian Helmle
A Novel Waveform For Emergency Services Mobile Ad-Hoc Networks : The Link Layer Perspective, Sebastian Helmle
Theses
Existing wireless communication systems of emergency services mainly enable ordinary unicast or broadcast voice communications. The increasing demand for data services such as messaging, file transfer, maps, etc requires those long-range communication systems to provide higher data rates while maintaining robustness against link failures. In this thesis, various aspects of a link layer design specifically for narrowband mobile ad-hoc networks (MANETs) that are targeted at emergency services are investigated.
The major aspect of this thesis is the optimisation of a time division multiple access (TDMA) design considering both efficient and reliable multicast resource reservation. An approach to mathematically describe a …