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Dramatic increases in forest fires in Europe as well as worldwide can be observed. Therefore, technical developments to support large scale forest firefighting strategies and management solutions are an international issue in the quest to protect human lives and resources as well as to reduce the negative environmental impact. This article describes an airborne based concept to enable an efficient...
The concept of software-defined networking (SDN) is able to offer important advantages over the traditional communication paradigms. This is achieved by decoupling the decision-making process from the underlying network infrastructure that forwards the traffic. Recently, there have been efforts in applying the SDN approach to wireless and cellular networks. In fact, SDN is considered as one of the...
The recent advancements in mobile network technologies and terminals have enabled ubiquitous Internet coverage, opening novel possibilities for public safety applications, and especially public warning and alerting. In this paper, we present the most recent results of the Austrian national project PASA (Public Warning and Alert System for Austria), the aim of which is to design, prototypically develop...
When two nodes in an opportunistic network meet, a utility function is generally employed to select the data that have to be exchanged between them, in order to maximize the chance of message delivery and to minimize congestion. The utility function computes weighted sums of various parameters, such as node centrality, similarity, trust, etc. Most of the existing solutions pre-compute the weights...
Urinary incontinence is uncontrolled leakage of urine. Its incidence is increasing and its treatment is expensive, however often not efficient. The paper reviews existing findings of genetic effects, effects of environment and lifestyle on occurrence of urinary incontinence. The development of personalized medicine assisted by information and communication technology is of great importance for the...
This paper discusses the role that resource pooling and cooperation may play in reducing the ever-growing power consumption of cellular networks. These two abstractions are often referred to as methods to enhance communication throughput and increase data transmission resilience. The goal of this work is to advocate and highlight that they can also represent effective directions to go through in order...
Video streaming is now one of the main applications on mobile networks. Since the throughput fluctuates widely on a mobile network, adaptive bitrate control methods that control the video bitrate in accordance with this fluctuation have been developed. These methods decide the bitrate at a one-second or a few-second interval. In most of these methods, the output of a decision is a bitrate value, and...
This work introduces a novel Behavioral Informatics Reporting Framework (BIIRF) which has been developed in the effort to review, study and compare the increasing number of Behavioral Informatics (BI) interventions for Connected Health (CH). The framework was developed through an iterative design cycle and it comprises of (i) a short-list of BI Intervention Eligibility Criteria for candidate interventions,...
The development of wireless sensor networks and constant increase of their capabilities enabled the integration of image capturing device within sensor node, representing the basis for visual sensor network. Such smart camera is primarily used for converting visual data into knowledge. The paper analyzes security requirements of visual sensor networks and describes possible security threats and attacks,...
Internet of Things (IoT) is the future of ubiquitous and personalized intelligent service delivery. It consists of interconnected, addressable and communicating everyday objects. To realize the full potentials of this new generation of ubiquitous systems, IoT's ‘smart’ objects should be supported with intelligent platforms for data acquisition, pre-processing, classification, modeling, reasoning and...
Online social networks (OSN) are one of the most widely adapted services of the Internet infrastructure, Facebook being one of the most popular among them. Facebook models connections between its users through the concept of “friendship”. However, the type and intensity of these connections between different people on Facebook vary significantly. In most cases, friends on Facebook correspond to mere...
All areas of our information society depend on communication networks as a basic infrastructure. Emerging applications raise the need for dynamic changes of the required networking resources, for example, to react to social events or to shifts of demands over time. Providing the required flexibility to react to those changes and being cost efficient at the same time has recently become a huge challenge...
Ultra-wide band (UWB) radar is a very perspective technology for short-range localization and tracking of moving persons. UWB radar sensor network (UWB-SN) employing the centralized data fusion method can significantly improve tracking capabilities of more people in complex building environments. In this paper we present real-time performing wireless UWB-SN hardware demonstrator. Its sensor nodes...
A novel approach for testing Free Space Optical (FSO) systems in a controlled laboratory condition is proposed. Based on fibre optics technology, our testbed could effectively emulate the operation of real wireless optical communication systems combined with various atmospheric perturbation effects such as fog and clouds. The suggested architecture applies an optical variable attenuator as a main...
Visible light communication (VLC) is an emerging technology for public street lighting. The paper comprises two parts. A spatial scaled simulation model for Signal to Noise Ratio (SNR) analysis and a spatial scaled experiment are elaborated to evaluate the VLC propagation channel model in an inhomogeneous street lighting channel. As a first result, a minor improved non Line of Sight (NLoS) ceiling...
It is widely argued that optical transmission and switching technologies will play an important role in next generation data centers. However, even though optical technologies have made a lot of progress in the last years towards achieving very high transmission capacity as well as increased flexibility and efficiency, an additional effort needs to be put in determining and analyzing suitable architectures...
In interactive satellite communication systems, adaptive coding and modulation is a suitable countermeasure to mitigate the high fade dynamics of frequency ranges like the Ka-band. Consequently, receivers that support operation at low and very low SNR are required. In this paper, we present such a receiver structure dedicated for burst reception in a MF-TDMA system, as it is typically adopted in the...
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