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12th IEEE International Conference on e-Health Networking, Application and Services, Healthcom 2010

作者： Eichelberg, Marco Rein, Andreas Blisching, Felix Wolf, Lars R and D Division Health OFFIS -Institute for Information Technology Oldenburg Germany Institute of Operating Systems and Computer Networks Technische Universität Braunschweig Braunschweig Germany

ISBN: (纸本)9781424463749

GAL, the Lower Saxony Research Network Design of Environments for Ageing, investigates how information and communication technology can provide for better environments for ageing. This paper describes a service oriented middleware platform for Ambient Assisted Living and its use in a number of different assistive systems developed in the GAL project: personal activity and household assistant, monitoring of preventive and rehabilitation sports, sensor-based activity determination, and sensor-based fall prevention and recognition. Besides a detailed description of the middleware platform and its elements and interfaces, central infrastructure services and their particularly applications in the different use cases are presented. © 2010 IEEE.

关键词： Middleware

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RoadGraph - Graph based environmental modelling and function independent situation analysis for driver assistance systems

RoadGraph - Graph based environmental modelling and function...

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International IEEE Conference on Intelligent Transportation systems

作者： Knaup, Jörn Homeier, Kai Group Research for Driver Assistance and Integrated Safety of Volkswagen AG Germany Institute of Operating Systems and Computer Networks Technische Universität Braunschweig Germany

ISBN: (纸本)9781424476572

RoadGraph is a graph based environmental model for driver assistance systems. It integrates information from different sources like digital maps, onboard sensors and V2X communication into one single model about vehicle's environment. At the moment of information aggregation some function independent situation analysis is done. In this paper the concept of the RoadGraph is described in detail and first results are shown. ©2010 IEEE.

关键词： Graphic methods

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QoS-AODV6E: An energy-balancing QoS routing scheme for WSNs

QoS-AODV6E: An energy-balancing QoS routing scheme for WSNs

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International Conference on Networked Sensing systems (INSS)

作者： Wolf-Bastian Pöttner Oliver Wellnitz Lars Wolf The Institute of Operating Systems and Computer Networks Technische Universität Braunschweig Germany

Wireless Sensor networks (WSN) now advance into areas where new scenarios and applications require WSNs to meet certain Quality of Service (QoS) requirements. To tackle these challenges, a routing approach has to consider limited energy supply of sensor nodes, dynamic network conditions as well as node mobility. This paper presents QoS-AODV6E, a routing scheme based on the Ad-hoc On-Demand Distance Vector (AODV) routing protocol, which encompasses QoS and Energy-Awareness for mobile WSNs. Based on the reactive AODV routing protocol, QoS-AODV6E allows applications to specify QoS parameters and finds suitable routes that support their requirements. In order to prolong the lifetime of the network, QoS-AODV6E balances the energy consumption between different paths through the network based on the weakest node. We evaluate our implementation of QoS-AODV6E in Contiki using simulation and measurements.

关键词： Routing Quality of service Wireless sensor networks Routing protocols Ad hoc networks Energy measurement

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The GAL middleware platform for AAL

The GAL middleware platform for AAL

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International Conference on e-health Networking, Applications and Services (HealthCom)

作者： Marco Eichelberg Andreas Hein Felix Büsching Lars Wolf R&D Division Health OFFIS - Institute for Information Technology Oldenburg Germany Institute of Operating Systems and Computer Networks Technische Universität Braunschweig Braunschweig Germany

关键词： Biomedical imaging Biomedical monitoring Monitoring

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Designing a decentralized traffic information system - AutoNomos

Designing a decentralized traffic information system - AutoN...

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16. Fachtagung Kommunikation in Verteilten Systemen, KiVS 2009 - 16th Conference on Communication in Distributed systems, KiVS 2009

作者： Wegener, Axel Hellbrück, Horst Fischer, Stefan Hendriks, Björn Schmidt, Christiane Fekete, Sándor P. Institute of Telematics University of Lübeck Germany Department of Electrical Engineering University of Applied Sciences Lübeck Germany Institute of Operating Systems and Computer Networks Braunschweig University of Technology Germany

ISBN: (纸本)9783540926658

We propose a decentralized traffic information system-AutoNomos-that is based on a thorough investigation of the properties of traffic and recommends a hierarchical data aggregation and forwarding for providing individualized information and support to road users. Our approach differs from work in the field by consequently applying local rules and local decentralized data processing, which turns out to be a key property of robust and scalable computing systems. We present a flexible VANET middleware that assists the application development by providing generic functionality for traffic applications. We discuss the architectural design of the overall system and provide solutions of important design concepts demonstrating the innovation of the approach.

关键词： Middleware

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Caroline: An autonomously driving vehicle for urban environments

Caroline: An autonomously driving vehicle for urban environm...

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作者： Rauskolb, Fred W. Berger, Kai Lipski, Christian Magnor, Marcus Cornelsen, Karsten Effertz, Jan Form, Thomas Graefe, Fabian Ohl, Sebastian Schumacher, Walter Wille, Jörn-Marten Hecker, Peter Nothdurft, Tobias Doering, Michael Homeier, Kai Morgenroth, Johannes Wolf, Lars Basarke, Christian Berger, Christian Gülke, Tim Klose, Felix Rumpe, Bernhard Herzfeld and Rubin P.C. 40 Wall Street New York NY 10005 United States Institute of Computer Graphics Mühlenpfordtstraße 23 38106 Braunschweig Germany Institute of Control Engineering Hans-Sommer-Straße 66 38106 Braunschweig Germany Institute of Flight Guidance Hermann-Blenk-Straße 27 38108 Braunschweig Germany Institute of Operating Systems and Computer Networks Mühlenpfordtstraße 23 38106 Braunschweig Germany Institute of Software Systems Engineering Mühlenpfordtstraße 23 38106 Braunschweig Germany

ISBN: (纸本)9783642039904

The 2007 DARPA Urban Challenge afforded the golden opportunity for the Technische Universität Braunschweig to demonstrate its abilities to develop an autonomously driving vehicle to compete with the world's best competitors. After several stages of qualification, our team CarOLO qualified early for the DARPA Urban Challenge Final Event and was among only eleven teams from initially 89 competitors to compete in the final. We had the ability to work together in a large group of experts, each contributing his expertise in his discipline, and significant organisational, financial and technical support by local sponsors who helped us to become the best non-US team. In this report, we describe the 2007 DARPA Urban Challenge, our contribution "Caroline", the technology and algorithms along with her performance in the DARPA Urban Challenge Final Event on November 3, 2007. © 2009 Springer-Verlag Berlin Heidelberg.

关键词： computers

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IBR-DTN: An efficient implementation for embedded systems

IBR-DTN: An efficient implementation for embedded systems

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2008 International Conference on Mobile Computing and Networking, MobiCom'08 - 3rd ACM Workshop on Challenged networks, CHANTS'08

作者： Doering, Michael Lahde, Sven Morgenroth, Johannes Wolf, Lars Institute of Operating Systems and Computer Networks Technische Universitat Braunschweig Braunschweig Niedersachsen Germany

ISBN: (纸本)9781605581866

In our demonstration we present an implementation of DTN for embedded systems and demonstrate how a WLAN access point can be turned into a stand-alone DTN-node for mobile applications. The modular software design of "IBRDTN" is centered on the efficient use of resources and interoperability with the DTN2 reference implementation. Our modules comprise a DTN Core, Bundle Router, Persistent Storage and a Convergence Layer Manager. IBR-DTN is work in progress, but the comparison of the features and performance to DTN2 is already very promising. Finally, we present a practical evaluation in a mobile scenario in which a vehicle mounted node passes a stationary node.

关键词： Delay tolerant networks

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MPEG analyzer a tool for visualizing mpeg encoding characteristics

MPEG analyzer a tool for visualizing mpeg encoding character...

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18th International Workshop on Network and operating systems Support for Digital Audio and Video, NOSSDAV 2008

作者： Dick, Matthias Lahde, Sven Wolf, Lars TU Braunschweig Institute of Operating Systems and Computer Networks Mühlenpfordtstraße 23 D- 38106 Braunschweig Germany

We present an open source tool called MPEG analyzer that is able to visualize various MPEG-2 encoding characteristics while playing a video stream. Our tool has been developed during a student lab and is intended to s... 详细信息

ISBN: (纸本)9781605581576

关键词： Teaching

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Letter Computation of Constrained Multicast Trees Using a Genetic Algorithm

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Transactions on Emerging Telecommunications Technologies 2008年第5期10卷

作者： Quan Sun Horst Langendoerfer Institute of Operating Systems and Computer Networks TU Braunschweig Bueltenweg 74/75 38106 Braunschweig Germany

This paper shows that the genetic algorithm can be used to solve the delay-constrained least-cost least-inter-destination-delay-variation multicast problem efficiently. The proposed genetic algorithm performs well whe...

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Performance Enhancement in AODV with Accessibility Prediction

Performance Enhancement in AODV with Accessibility Predictio...

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IEEE Internatonal Conference on Mobile Adhoc and Sensor systems (MASS)

作者： Habib-ur Rehman Lars Wolf Institute of Operating Systems and Computer Networks (IBR) Technische Universität Brunswick Germany

The need for mobility awareness in ad hoc routing protocols is widely proclaimed. In this paper we present AODV-AP, a scheme to make AODV nodes aware of the accessibility of the neighbor nodes in the network. Nodes acquire the accessibility information of the other nodes through routine routing operations and keep it in their routing tables. later, this information can be utilized to enhance routing operations. One possible use of this accessibility information, restrict the route discoveries for inaccessible nodes, is also evaluated in this paper. Simulation results show that the use of accessibility knowledge in the route discovery process largely reduces the MAC and Routing overhead. Similarly, the Normalized Throughput with respect to MAC overhead is up to 3 times higher than that in standard AODV which reflects the effective use of network resources.

关键词： Routing protocols Ad hoc networks Network topology operating systems computer networks Throughput Analytical models Performance analysis Accreditation Telecommunication traffic

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