58,450 research outputs found
On the Experimental Evaluation of Vehicular Networks: Issues, Requirements and Methodology Applied to a Real Use Case
One of the most challenging fields in vehicular communications has been the
experimental assessment of protocols and novel technologies. Researchers
usually tend to simulate vehicular scenarios and/or partially validate new
contributions in the area by using constrained testbeds and carrying out minor
tests. In this line, the present work reviews the issues that pioneers in the
area of vehicular communications and, in general, in telematics, have to deal
with if they want to perform a good evaluation campaign by real testing. The
key needs for a good experimental evaluation is the use of proper software
tools for gathering testing data, post-processing and generating relevant
figures of merit and, finally, properly showing the most important results. For
this reason, a key contribution of this paper is the presentation of an
evaluation environment called AnaVANET, which covers the previous needs. By
using this tool and presenting a reference case of study, a generic testing
methodology is described and applied. This way, the usage of the IPv6 protocol
over a vehicle-to-vehicle routing protocol, and supporting IETF-based network
mobility, is tested at the same time the main features of the AnaVANET system
are presented. This work contributes in laying the foundations for a proper
experimental evaluation of vehicular networks and will be useful for many
researchers in the area.Comment: in EAI Endorsed Transactions on Industrial Networks and Intelligent
Systems, 201
Leadership development programme: a multi-method evaluation
This report investigates findings arising from a variety of forms of feedback provided by the first cohort of participants (2012-2013) in Cumbria Partnership Foundation Trust’s “Leadership Development” Programme (LDP). The report summarises both quantitative and qualitative feedback, and synthesises findings to provide a more three-dimensional overview of participant experience and systemic impact. Feedback reflects, throughout, the diversity of the participating cohort in terms of professional roles and levels of seniority
The Role of NGOs in Human Security
Human security is fundamentally concerned with helping people to deal with unforeseeable threats and sudden downturns, whether international financial crises, environmental disasters or incapacitating illnesses. In this paper I argue that NGOs, as one of the most visible sets of actors in the related fields of human development and human rights, can play a significant role in helping to achieve human security. NGOs are especially well suited to action for human security because of their size and reach, closeness to local populations, willingness to confront the status quo, and ability to address transnational threats through coalition-building. While NGOs face many obstacles in reorienting their activities explicitly towards human security, including the cyclical nature of the aid monies on which many of them depend and the high costs of networking, I argue that the human security framework will nonetheless attract many NGOs to its approach.This publication is Hauser Center Working Paper No. 12. The Hauser Center Working Paper Series was launched during the summer of 2000. The Series enables the Hauser Center to share with a broad audience important works-in-progress written by Hauser Center scholars and researchers
Requirement analysis for building practical accident warning systems based on vehicular ad-hoc networks
An Accident Warning System (AWS) is a safety application that provides collision avoidance notifications for next generation vehicles whilst Vehicular Ad-hoc Networks (VANETs) provide the communication functionality to exchange these notifi- cations. Despite much previous research, there is little agreement on the requirements for accident warning systems. In order to build a practical warning system, it is important to ascertain the system requirements, information to be exchanged, and protocols needed for communication between vehicles. This paper presents a practical model of an accident warning system by stipulating the requirements in a realistic manner and thoroughly reviewing previous proposals with a view to identify gaps in this area
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