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Schmidt, J.R. (author)
This paper describes a communication and service platform for public safety personnel. The platform demonstrates just in time provisioning of data and scalable communication services and operates in a heterogeneous network environment with high survivability. As an example use case the design is aimed at the ad-hoc facilitation of the...
conference paper 2004
document
de Smidt-Destombes, K.S. (author), van der Heijden, M.C. (author), van Harten, A. (author), TNO Fysisch en Elektronisch Laboratorium (author)
This paper considers a k-out-of-N system with identical, repairable components. Maintenance is initiated when the number of failed components exceeds some critical level. After a possible set-up time, all failed components are replaced by spares. A multi-server repair shop repairs the failed components. The system availability depends on the...
article 2004
document
de Montalvo, U.W. (author), van de Kar, E. (author), Maitland, C. (author), TNO Strategie, Technologie en Beleid (author)
The advent of new electronic platforms, such as fixed and mobile Internet, is forcing firms from a range of industries to come together in so-called 'value networks' for the provision of innovative services. Firms from different industries have widely varying resources. Our analysis is aimed at specific types of interdependencies, relating the...
conference paper 2004
document
den Hartog, F.T.H. (author), Balm, M. (author), de Jong, C.M. (author), Kwaaitaal, J.J.B. (author), TNO Telecom (author)
conference paper 2004
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van der Horst, T.J.J. (author), TNO Strategie, Technologie en Beleid (author)
report 2004
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Fleuren, M.J. (author), Stüben, H. (author), Zegwaard, G.F. (author), TNO Telecom (author)
UMTS is a third generation mobile telecommunication system, which enables multi-service and multi-bit rate communication going beyond the possibilities of previous systems. The simulator MoDySirn models UMTS in great detail. Characteristics of UMTS, such as soft hand-over and the interdependency of load and capacity among neighboring cells are...
bookPart 2004
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Kuiper-Hoyng, L.L.M.L. (author), Beusmans, J.W.F. (author), TNO Telecom (author)
The Atmosphere Controller is an implementation of home networking technology that could make life at home a totally new experience. An atmosphere is created by combining light (intensity and colour), music and wallpaper projection. To find out if is this type of experience fits into everyday life of people, we studied the current experience of...
conference paper 2004
document
Baken, N.H.G. (author), van Boven, E.F.M. (author), den Hartog, F.T.H. (author), Hekmat, R. (author)
We present a new way of capturing the future technical infrastructure of a converged fixed-mobile infrastructure by means of a four-tiered hierarchy of one fixed and three different mobile and wireless (access) layers. With such a view, the current range of heterogeneous interconnected public and private networks can be easily modelled as a...
article 2004
document
Boertjes, E.M. (author), TNO Telecom (author)
Trust is the belief or confidence in someone that their recommendations will work for you, i.e. that you will like the TV-programs (or other content) that they recommend. Many systems incorporate some notion of trust. Trust is more than similarity in taste, which makes trust a broader concept than the concept of similarity used in Collaborative...
conference paper 2004
document
Abbink, H. (author), van Dijk, R. (author), Dobos, T. (author), Hoogendoorn, M. (author), Jonker, C.M. (author), Konur, S. (author), van Maanen, P.P. (author), Popova, V. (author), Sharpanskykh, A. (author), van Tooren, P. (author), Treur, J. (author), Valk, J. (author), Xu, L. (author), Yolum, P. (author), TNO Technische Menskunde (author)
The project CIM, started in 2003, addresses the problem of automated support for incident management. In this paper some intermediate results are shown, especially on automated support of analysis of errors in traces of incident management. For such traces it can be checked automatically which dynamic properties hold or fail. The potential of...
conference paper 2004
document
den Hartog, F.T.H. (author), Baken, N.H.G. (author), Keyson, D.V. (author), Kwaaitaal, J.J.B. (author), Snijders, W.A.M. (author), TNO Telecom (author)
Various crucial multi-disciplinary issues have been investigated concerning residential gateway (RG) technology applicable in an unbundled telecommunications value chain. We find that the Calculating-with-Concepts method can be used to construct an unambiguous frame of reference for digital rights management and end-to-end security architectures...
conference paper 2004
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Steen, M. (author), de Koning, N. (author), Pikaart, A. (author), TNO Telecom (author)
How can human centred approaches in market research and product development improve the process and results of innovation? Based on case studies two recommendations are formulated: 1) use a comprehensive view on man for studying people's behaviour, needs and wishes while they use products or services; and 2) employ an open dialogue and...
conference paper 2004
document
Wagenaar, W.J.G.P. (author), de Jong, K.Y. (author), TNO Fysisch en Elektronisch Laboratorium (author)
conference paper 2004
document
Díaz, I.F. (author), Epema, D. (author), de Jongh, J. (author), TNO Telecom (author)
The nature of wireless multihop ad-hoc networks makes it a challenge to offer connections of an assured quality. In order to improve the performance of such networks, multipath routing in combination with Multiple Description Coding (MDC) has been proposed. By splitting up streams of multimedia traffic into several substreams (called...
conference paper 2004
document
Abbink, H. (author), van Dijk, R. (author), Dobos, T. (author), Hoogendoorn, M. (author), Jonker, C.M. (author), Konur, S. (author), van Maanen, P.P. (author), Popova, V. (author), Sharpanskykh, A. (author), van Tooren, P. (author), Treur, J. (author), Valk, J. (author), Xu, L. (author), Yolum, P. (author), TNO Technische Menskunde (author)
conference paper 2004
document
de Haan, R. (author), van den Berg, J.L. (author), Kooij, R.E. (author), van der Mei, R.D. (author), Zwart, A.P. (author)
Processor sharing (PS) models nicely capture the bandwidth sharing and statistical multiplexing effect of TCP at the flow-level. However, these 'rough' models do not provide insight into the impact of packet-level parameters (round trip time, buffer size) on performance metrics such as throughput and flow transfer times. In a previous paper an...
conference paper 2004
document
Sunyoto, H. (author), van der Mark, W. (author), Gavrila, D.M. (author)
With recent hardware advances, real-time dense stereo vision becomes increasingly feasible for general-purpose processors. This has important benefits for the intelligent vehicles domain, alleviating object segmentation problems when sensing complex, cluttered traffic scenes. In this paper, we present a framework ofreal-time dense stereo vision...
conference paper 2004
document
Jorguseski, L. (author), Prasad, R. (author)
The concept of multi-radio access networks is currently considered as a strong candidate for the next generation wireless access networks. This concept incorporates conventional cellular networks such as GERAN or UTRAN for wide area coverage while local-area networks such as IEEE 802.11, HIPERLAN/2, and/or several personal networks (PN)...
conference paper 2004
document
Mantel, O.C. (author), Rijken, M. (author), Matic, D. (author), Mawira, A. (author)
Signal level predictions for sector antennas in mobile networks strongly depend on the antenna pattern used in the prediction tool. For built-up areas, reflections and scattering often lead to a significant energy component at the back of the antenna, and the theoretical antenna pattern does not account for this effect. We propose a method that ...
conference paper 2004
document
Bos, A. (author), Breebaart, L. (author), Neerincx, M.A. (author), Wolff, M. (author)
This paper describes an intelligent maintenance system for Supporting Crew OPErations (SCOPE). SCOPE supports the astronauts onboard the ISS and helps them to maximize the availability of complex payload systems. SCOPE detects system failures, guides the isolation of the root causes of failure, and presents the relevant repair procedures in...
conference paper 2004
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