Prof. Dr. Horst Hellbrück


University of Lübeck
Institute of Telematics
Ratzeburger Allee 160

23562 Lübeck
Gebäude 64, 2nd Floor, Raum 59

Email:hellbrueck(at)itm.uni-luebeck.de
Phone:+49 451 3101 6440
Fax:+49 451 3101 6404

 

CV

Interests

My research fields are communication networks, distributed systems and their applications. My interest are modern structures like wireless mobile networks and sensor networks. Of special interest are sensor networks in various application fields from medical applications to underwater technologies.

Research Projects

Symposium and Organizations

  • since 2005 Active Member of KuVS   Distributed Systems Group of the GI (Gesellschaft für Informatik)
  • 2006 4. German KuVS Summer School 2006 - Selforganisation , Organisation and Chair of the Workshop
  • 2008 Multi Conference  (Mensch & Computer, DeLFI, Cognitive Design, Usability Professionals), Exhibition Chair
  • since 2009 Leitungsgremium der GI/ITG-Fachgruppe KuVS  
  • 2009 GI Jahrestagung Lübeck, Exhibition Chair
  • 2011 KiVS Kiel, Workshop Chair
  • since 2011 Reviewer for Acquin Accreditation agency  
  • since 2011 Reviewer for BMBF
  • since 2012 program manager for the international study program in Electrical Engineering (ISE ) at the Lübeck University of Applied Sciences
  • since 2013 Member of ITG 5.2.1   System Architectures and Traffic Engineering
  • since 2013 Head of Center of Excellence CoSA.
  • since 2013 Vice Chairman Life Science Nord e.V.  
  • Reviewer for Journals
    • PMC  (Pervasive and Mobile Computing - Elsevier)
    • PIK   (Praxis der Informationsverarbeitung und Kommunikation)
  • Member of several international Program Committees
    • IADIS WWW/Internet (ICWI)
    • IASTED International Conference on Telematics
    • IASTED RTA International Conference on Robotics, Telematics and Applications
    • LOCALGOS (Workshop on Localized Algorithms and Protocols for Wireless Sensor Networks)
    • LOCAN (Workshop on Localized Communication and Topology Protocols for Ad hoc Networks)
    • WMAN (Workshop on Mobile Ad Hoc Networks)

Tools

  • ANSim: Have a look at the new Web Site of ANSim www.ansim.info  - A simple to use Ad-Hoc Network Simulator, developed for my PhD Thesis.
  • JGPSMap: A tool for visualizing arbitrary objects with GPS coordinates on a Map. Have a look at the Web Site of JGPSMap  or download .

 

Teaching Activities

An overview of the courses is available at the web pages of the study programs.

·         Courses at International University in Bruchsal

    • Introduction to C Programming (MICT) - Programming Styles / Part: Procedural Programming (BSc)
    • Networking and Distributed Systems / Assistant (BSc)
    • Software Engineering / Assistant (MICT) 
    • Web Applications with Java and XML (BSc) 
    • Web Programming (MICT) 
    • Advanced Networking / Wireless Networks (MICT) 
    • Wireless Networks (MICT) 
    • Enterprise Information Systems I (MBA)
    • Information Systems (BBA)
    • Operating Systems (BSc)
    • Cryptographic Techniques / Practical Part: Applications (BSc)

    ·         Courses at University of Lübeck

      • Operating- and Communications Systems (BSc, MSc and Diplom)
      • Operating Systems (BSc and Diplom)
      • Computernetworks (BSc and Diplom)
      • Mobile Communications (MSc and Diplom)
      • Security in Networks and Distributed Systems (BSc, MSc and Diplom)
      • Wireless Sensor Networks (MSc and Diplom)

      ·         Courses at Lübeck University of Applied Sciences

        • Principles of Communications  (Bachelor ISE)
        • Communication Networks (Bachelor KIM)
        • Digital Transmission (Bachelor KIM)
        • System Design Projecte (Bachelor KIM)
        • Communications Engineering (Master AIT)
        • Studyprojects (Master AIT)
        • Wireles Networks in Automation Systems (Master AIT)

2017

  • Torsten Teubler and Dennis Pfisterer and Horst Hellbrück: Memory Efficient Forwarding Information Base for Content-Centric Networking. International Journal of Computer Networks & Communications (IJCNC), no. 9, pp. 67-85, AIRCC Publishing Corporation, AIRCC Publishing Corporation, Chennai, Tamil Nadu, India, May, 2017
    BibTeX Link
    @article{teubler2017contentcentricforwarding,
    	author={{T}orsten {T}eubler and {D}ennis {P}fisterer and {H}orst {H}ellbr{\"{u}}ck},
            title={{M}emory {E}fficient {F}orwarding {I}nformation  {B}ase for {C}ontent-{C}entric     {N}etworking},
    	journal={International Journal of Computer Networks & Communications (IJCNC)},
            year={2017},
            month={May},
            volume={9},
    	number={3},
    	pages={67--85},
            publisher={AIRCC Publishing Corporation},
    	url={http://aircconline.com/ijcnc/V9N3/9317cnc05.pdf},
            address={{AIRCC} {P}ublishing {C}orporation, {C}hennai, {T}amil {N}adu, {I}ndia},
            keywords={{P}rotocols, {C}ontent-centric networking, {I}nternet of things},
            abstract={Content-Centric Networking (CCN) is a new paradigm for the future Internet where content is addressed by hierarchically organized names with the goal to replace TCP/IP networks. 
      Unlike IP addresses, names have arbitrary length and are larger than the four bytes of IPv4 addresses. 
      One important data structure in CCN is the Forwarding Information Base (FIB) where prefixes of names are stored together with the forwarding face. 
      Long prefixes create problems for memory constrained Internet of Things (IoT) devices. 
      In this work, we derive requirements for a FIB in the IoT and survey possible solutions. 
      We investigate, design and compare memory-efficient solutions for the FIB based on hashes and Bloom-Filters. 
      For large number of prefixes and an equal distribution of prefixes to faces we recommend a FIB implementation based on Bloom-Filters. 
      In all other cases, we recommend an implementation of the FIB with hashes.}
    }

2015

  • Sebastian Ebers and Horst Hellbrück and Stefan Fischer: VaSili - A Simulation Runtime Environment for Applications in Vehicular Ad-Hoc Networks. in 12th Annual IEEE Consumer Communications and Networking Conference, CCNC: CCNC 2015 Workshops - VENITS 2015, pp. 937-942, Las Vegas, NV, USA, January, 2015
    BibTeX
    @inproceedings{Ebers2015:VaSili,
      author    = {Sebastian Ebers and Horst Hellbrück and Stefan Fischer},
      title     = {{VaSili} - {A} {S}imulation {R}untime {E}nvironment for 
    		{A}pplications in {V}ehicular {Ad-Hoc} {N}etworks},
      booktitle = {12th Annual {IEEE} Consumer Communications and Networking Conference,
                   {CCNC}: CCNC 2015 Workshops - VENITS 2015},
     year      = {2015},  
     month     = {9.-12. Januar},
     address = {Las Vegas, NV, USA},
     pages     = {937--942},
     doi       = {10.1109/CCNC.2015.7158102},
     keywords  = {VANET; VANET Simulator; VANET API; Simulation Runtime; Simulation Environment; 
    Simulation Framework; Application Development}
    }

2011

  • Sebastian Ebers and Mohamed A. Hail and Stefan Fischer and Horst Hellbrück: API for Data Dissemination Protocols - Evaluation with AutoCast,. in The Third World Congress on Nature and Biologically Computing (NaBIC 2011),, pp. 534-539, IEEE,, Salamanca, Spain,, oct,, 2011,
    BibTeX
    @InProceedings{ ebers2011api,
    	author = {Sebastian Ebers and Mohamed A. Hail and Stefan Fischer and
    Horst Hellbr{\"u}ck},
    	title = "API for Data Dissemination Protocols - Evaluation with AutoCast",
    	booktitle = "The Third World Congress on Nature and Biologically
    Inspired Computing (NaBIC 2011)",
    	year = "2011",
    	address = "Salamanca, Spain",
    	publisher = "IEEE",
    	month = oct,
    	abstract = "In the past various protocols inspired by nature and
    biology have been proposed to disseminate or transfer data in mobile or
    static ad-hoc networks. Many of them are designed for usage in wireless
    sensor networks or vehicular ad-hoc networks. Recently, we have
    developed and designed a general purpose data dissemination protocol
    called AutoCast in this field that we evaluated in detail by
    simulations. When we started to use AutoCast in real applications, we
    found out that the description of AutoCast is incomplete, as we provided
    the algorithms of AutoCast in details but did neither provide nor
    describe a suitable Application Programming Interface (API) and AutoCast
    was closely coupled to the application. The focus of this article is
    twofold. First, we propose an appropriate API to encapsulate data
    dissemination protocols like AutoCast and we specify the service
    interface of AutoCast in detail. This API can serve as a reference model
    for other nature and biologically inspired data dissemination approaches
    and applications. Second, we evaluate two applications based on our API
    with AutoCast in the field of wireless sensor networks and vehicular
    ad-hoc networks to illustrate the usage of the API and demonstrate the
    flexibility of this approach.",
    	keywords = "API, communication protocols, data dissemination, vehicular
    ad-hoc networks, wireless sensor networks",
    	pages = "534--539"
    }
    
    
  • Sebastian Ebers and Sándor P. Fekete and Stefan Fischer and Horst Hellbrück and Björn Hendriks and Axel Wegener: Hovering Data Clouds for Organic Computing,. in Organic Computing - A Paradigm Shift for Complex Systems ,, no. ,, Birkhäuser Verlag, 2011,
    BibTeX
    @InBook{ EbFeFiHeHeWe11,
    	title = "Hovering Data Clouds for Organic Computing",
    	booktitle = "Organic Computing - A Paradigm Shift for Complex Systems ",
    	series = "Autonomic Systems",
    	author = {Sebastian Ebers and S{\'a}ndor P. Fekete and Stefan Fischer and Horst Hellbr{\"u}ck and Bj{\"o}rn Hendriks and Axel Wegener},
    	publisher = {Birkh{\"a}user Verlag},
    	chapter = "2.7",
    	volume = " ",
    	year = "2011",
    	doi = "10.1007/978-3-0348-0130-0\_14",
    	abstract = "As part of our project AutoNomos, we have investigated traffic information and management systems that motivate the usage of new methods and tools inspired by Organic Computing paradigms. Current traffic monitoring and management approaches with stationary infrastructure lack flexibility with respect to system deployment and have difficulties with detecting unpredictable events (e.g., accidents). One goal of AutoNomos is the development of a distributed and selforganising traffic information and management system without a centralised infrastructure. Our system relies on a GPS-based navigation system and a wireless radio interface; vehicles can gather information about the current position on the road network and form a vehicular ad-hoc network (VANET) to share information about traffic phenomena. In this article, we introduce Hovering Data Clouds (HDCs) as a tool to collect, aggregate and disseminate application-specific data. HDCs evolve in a self-organising manner at locations of relevant data in the system. Although their data is hosted on the nodes, HDCs exist independent of the individual carriers. While HDCs float between physical carriers, their corresponding HDC messages are disseminated in the network by a new effective transport protocol named AutoCast, designed according to Organic Computing paradigms. Finally, we demonstrate that HDCs detect traffic phenomena reliably and propagate them robustly within the network.",
    	keywords = "Hovering Data Clouds, Organic Computing, Self-Organizing Systems, Wireless Ad-Hoc Networks"
    }
    
    
  • Sándor P. Fekete and Björn Hendriks and Christopher Tessars and Axel Wegener and Horst Hellbrück and Stefan Fischer and Sebastian Ebers: Methods for Improving the Flow of Traffic,. in Organic Computing - A Paradigm Shift for Complex Systems ,, Birkhäuser Verlag, 2011,
    BibTeX
    @InBook{ FeHeTeNeNeNeEb11,
    	title = "Methods for Improving the Flow of Traffic",
    	series = "Autonomic Systems",
    	author = {S{\'a}ndor P. Fekete and Bj{\"o}rn Hendriks and Christopher Tessars and Axel Wegener and Horst Hellbr{\"u}ck and Stefan Fischer and Sebastian Ebers},
    	publisher = {Birkh{\"a}user Verlag},
    	year = "2011",
    	booktitle = "Organic Computing - A Paradigm Shift for Complex Systems ",
    	chapter = "5"
    }
    
    
  • Mohamed A. Hail and Jan Pinkowski and Torsten Teubler and Maick Danckwardt and Dennis Pfisterer and Horst Hellbrück: RoombaNet - Testbed for Mobile Networks. in Proceedings of the Workshops der wissenschaftlichen Konferenz Kommunikation in verteilten Systemen 2011 (WowKiVS 2011), no. 37, Electronic Communications of the EASST, 2011
    BibTeX
    @INPROCEEDINGS{RoombaNet,
       author = {Mohamed A. Hail and Jan Pinkowski and Torsten Teubler and Maick Danckwardt and Dennis Pfisterer and Horst Hellbr{\"{u}}ck}, 
       editor = {Margaria, Tiziana and Padberg, Julia and Taentzer, Gabriele},
       volume = {37},
       booktitle = {Proceedings of the Workshops der wissenschaftlichen Konferenz Kommunikation in verteilten Systemen 2011 (WowKiVS 2011)},
       title = {RoombaNet{ }-{ }Testbed for Mobile Networks}, 
       pages = {}, 
       publisher = {Electronic Communications of the EASST}, 
       year = {2011},
       note = {Accepted for publication}
    }
    
    
  • Horst Hellbrück and Max Pagel and Alexander Kröller and Daniel Bimschas and Dennis Pfisterer and Stefan Fischer: Using and Operating Wireless Sensor Network Testbeds with WISEBED. in Proceedings of the 10th IEEE IFIP Annual Mediterranean Ad Hoc Networking Workshop, Favignana Island, Sicily, Italy, un,, 011,
    BibTeX
    @inproceedings{hellbrueck11usingandoperatingtestbeds,
    	address={Favignana Island, Sicily, Italy},
    	author={Horst Hellbrück and Max Pagel and Alexander Kröller and Daniel Bimschas and Dennis Pfisterer and Stefan Fischer},
    	booktitle={Proceedings of the 10th IEEE IFIP Annual Mediterranean Ad Hoc Networking Workshop},
    	month=jun,
    	title={Using and Operating Wireless Sensor Network Testbeds with WISEBED},
    	year=2011,
    }
    
    
    

2010

  • Daniel Bimschas and S\`andor Fekete and Stefan Fischer and Horst Hellbrück and Alexander Kröller and Richard Mietz and Max Pagel and Dennis Pfisterer and Kay Römer and Torsten Teubler: Poster Abstract: Real-World G-Lab: Integrating Wireless Sensor Networks with the Future Internet. in TridentCom 2010: The 6th International ICST Conference on Testbeds and Research Infrastructures for the Development of Networks & Communities, Berlin, Germany, may,, 2010,
    BibTeX Link
    @INPROCEEDINGS{rwglabposter2010tridentcom,
      author = {Daniel Bimschas and S{\'{a}}ndor Fekete and Stefan Fischer and Horst Hellbr{\"{u}}ck and Alexander Kr{\"{o}}ller and Richard Mietz and Max Pagel and Dennis Pfisterer and Kay R{\"{o}}mer and Torsten Teubler},
      title = {{Poster Abstract: Real-World G-Lab: Integrating Wireless Sensor Networks with the Future Internet}},
      booktitle = {{TridentCom 2010: The 6th International ICST Conference on Testbeds and Research Infrastructures for the Development of Networks \& Communities}},
      year = 2010,
      address = {Berlin, Germany},
      month = may,
      abstract = {Today's Internet is approaching architectural limits that are set up by its legacy architecture. It is based on technologies and algorithms that were developed about 30 years ago. Thus intensive research is done in the field of new protocols and algorithms fulfilling the needs of the Future Internet. We believe that wireless sensor networks (WSNs), sensor-equipped devices such as cellphones and other embedded systems will have a vital part in this context, providing a way to obtain information about the real world. All of these new devices will produce a huge amount of data by sensing and interacting with their environment. At present, complex low-level sensor node programming and algorithm knowledge is necessary to access sensor data, and only a few mature techniques exist to integrate heterogeneous WSNs with the Internet. The goal of Real-World G-Lab, which is part of the German-Lab (G-Lab) project, is to overcome these obstacles by working on the different levels of protocols, services and applications. We will enable developers to write applications that rely on sensor data input, without knowledge of the underlying hardware platform and the network communication algorithms. This implies that sensors are able to participate in the Future Internet as peer hosts. This enables new fields of applications but likewise opens a set of new challenges in the context of efficient request processing by WSNs. Efficiency here means the optimization of query-latency, energy efficiency and general service-guarantees regarding the access to sensor nodes. Beyond this we need the ability to scale to a large amount of requests from the Internet while maintaining low latencies. We will verify our concepts and applications inside the controllable environment of the G-LAB research network, by adding several outdoor WSN deployments to the experimental facility of the G-LAB project. In summary, Real-World G-LAB will contribute to the integration of resource-constrained (wireless) sensor devices into the Future Internet by investigating several key challenges, ranging from low-level energy efficiency to improved high-level application development.},	
      keywords = {WSN, Service Discovery, Service Description, Sensor Data based Applications, IPv6, 6LoWPAN, Energy Efficiency, Service Guarantees},
      owner = {bimschas},
      timestamp = {2010.04.15},
      url={http://www.itm.uni-luebeck.de/publications/bimschas10glab-tridentcom.pdf}
    }
    
    
    
  • Fekete, S\`andor P. and Schmidt, Christiane and Axel Wegener and Horst Hellbrück and Stefan Fischer: Empowered by wireless communication: Distributed methods for self-organizing traffic collectives. ACM Trans. Auton. Adapt. Syst., no. 5, pp. 11:1-11:30, ACM, New York, NY, USA, September, 2010
    BibTeX Link
    @article{Fekete:2010:EWC:1837909.1837912,
     author = {Fekete, S\'{a}ndor P. and Schmidt, Christiane and Axel Wegener and Horst Hellbr\"{u}ck and Stefan Fischer},
     title = {Empowered by wireless communication: Distributed methods for self-organizing traffic collectives},
     journal = {ACM Trans. Auton. Adapt. Syst.},
     volume = {5},
     issue = {3},
     month = {September},
     year = {2010},
     issn = {1556-4665},
     pages = {11:1--11:30},
     articleno = {11},
     numpages = {30},
     url = {http://doi.acm.org/10.1145/1837909.1837912},
     doi = {http://doi.acm.org/10.1145/1837909.1837912},
     acmid = {1837912},
     publisher = {ACM},
     address = {New York, NY, USA},
     keywords = {Hovering Data Clouds, Organic Information Complexes, Organic computing, pattern recognition, self-organizing systems, traffic, traffic jams},
    } 
    
    
    
  • Daniel Bimschas and Horst Hellbrück and Richard Mietz and Dennis Pfisterer and Kay Römer and Torsten Teubler: Middleware for Smart Gateways Connecting Sensornets to the Internet. in Proceedings of the 5th International Workshop on Middleware Tools, Services and Run-Time Support for Sensor Networks, 010,
    BibTeX Link
    @inproceedings{bimschas2010smartgateways,
    	abstract={There is an increasing trend to integrate sensor networks into the Internet, eventually resulting in an Internet of Things. Recent efforts of porting IPv6 to sensor networks turn sensor nodes into equitable Internet peers and RESTful Web Services on sensor nodes allow a distribution of the application logic among sensor nodes and more powerful Internet nodes. The touching point between a sensor network and the Internet is the gateway which translates between the link-layer protocols used in the Internet (Ethernet, Wi-Fi) and sensor networks (IEEE 802.15.4). So far, the functionality of those gateways was fixed and simple. We propose to turn these gateways into smart gateways by enabling them to execute application code. As only the gateway has full knowledge of and control over both the sensor network and the Internet, smart gateways can act as performance-enhancing proxies and intelligent caches to preserve the limited resources of the sensor network. Also, the smart gateway can perform application-specific protocol conversion between highly optimized but non-standard protocols in the sensor network and standardized, but less efficient protocols in the Internet. In this paper we present the design of a middleware for smart gateways that allows the execution of application code on the gateway by offering simplified interfaces to the sensor network and the Internet. We also report preliminary performance results for key functions of the middleware.},
    	author={Daniel Bimschas and Horst Hellbr{\"u}ck and Richard Mietz and Dennis Pfisterer and Kay R{\"o}mer and Torsten Teubler},
    	booktitle={Proceedings of the 5th International Workshop on Middleware Tools, Services and Run-Time Support for Sensor Networks},
    	title={Middleware for Smart Gateways Connecting Sensornets to the Internet},
    	year=2010,
    	url={https://www.itm.uni-luebeck.de/files/4013/6973/3907/MidSens2010.pdf},
    doi={10.1145/1890784.1890787}
    }
    
    
    

2009

  • Horst Hellbrück and Axel Wegener and Junjian Cao and Tian Zuo: Fast Prototyping for VANET Applications with PDAs. in Proceedings of the 1st International Conference on Wireless Communication Vehicular Technology, Information Theory and Aerospace & Electronic Systems Technology (Wireless VITAE), Aalborg, Denmark, may,, 2009
    BibTeX
    @INPROCEEDINGS{Hellbrueck2009pda,
      author = {Horst Hellbrück and Axel Wegener and Junjian Cao and Tian Zuo},
      title = {Fast Prototyping for VANET Applications with PDAs},
      booktitle = {Proceedings of the 1st International Conference on Wireless Communication
    	Society, Vehicular Technology, Information Theory and Aerospace \&
    	Electronic Systems Technology (Wireless VITAE)},
      year = {2009},
      address = {Aalborg, Denmark},
      month = may,
    }
    
    
  • Axel Wegener and Horst Hellbrück and Stefan Fischer and Björn Hendriks and Christiane Schmidt and S\`andor P. Fekete: Designing a Decentralized Traffic Information System - AutoNomos. in Proceedings of the 16. ITG/GI - Fachtagung Kommunikation in Verteilten Systemen (KiVS), Kassel, Germany, mar,, 2009
    BibTeX
    @INPROCEEDINGS{wegener2009autonomos,
      author = {Axel Wegener and Horst Hellbrück and Stefan Fischer and Björn Hendriks
    	and Christiane Schmidt and S\'{a}ndor P. Fekete},
      title = {Designing a Decentralized Traffic Information System -- AutoNomos},
      booktitle = {Proceedings of the 16. ITG/GI - Fachtagung Kommunikation in Verteilten
    	Systemen (KiVS)},
      year = {2009},
      address = {Kassel, Germany},
      month = mar,
      abstract = {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.},
      file = {:wegener2009autonomos.pdf:PDF},
      owner = {wegener},
      timestamp = {2008.06.23}
    }
    
    
    
  • Horst Hellbrück and Martin Lipphardt and Xin Hua,: Effective Movement Classification for Context Awareness in Medical Applications Networking,. in First International Workshop on Medical Applications Networking,, Dresden, Germany,, un,, 009,
    BibTeX
    @INPROCEEDINGS{Hell0906Effective, 
       author="Horst Hellbrück and Martin Lipphardt and Xin Hua", 
       title="Effective Movement Classification for Context Awareness in Medical Applications Networking", 
       booktitle="First International Workshop on Medical Applications Networking",
       address="Dresden, Germany", 
       month=jun, 
       year=2009, 
    }
    
    
    

2008

  • Axel Wegener and Horst Hellbrück and Christian Wewetzer and Andreas Lübke: VANET Simulation Environment with Feedback Loop and its Application to Traffic Light Assistance. in Proceedings of the 3rd IEEE Workshop on Automotive Networking and Applications, New Orleans, LA, USA, dec,, 2008
    BibTeX
    @INPROCEEDINGS{wegener08vanet,
      author = {Axel Wegener and Horst {Hellbrück} and Christian Wewetzer and Andreas
    	Lübke},
      title = {{VANET} Simulation Environment with Feedback Loop and its Application
    	to Traffic Light Assistance},
      booktitle = {Proceedings of the 3rd IEEE Workshop on Automotive Networking and
    	Applications},
      year = {2008},
      address = {New Orleans, LA, USA},
      month = dec,
      abstract = {Traffic applications, in which vehicles are equipped with a radio
    	interface and communicate directly with each other and the road traffic
    	infrastructure are a promising field for ad-hoc network technology.
    	Vehicular applications reach from entertainment to traffic information
    	systems, including safety aspects where warning messages can inform
    	drivers about dangerous situations in advance. As performance tests
    	of the real system are very expensive and not comprehensive, today's
    	evaluations are based on analysis and simulation via traffic simulators.
    	In order to investigate the impact of traffic information systems
    	there are two options: First, traffic simulators can be extended
    	by application code and a simplified model for wireless communication.
    	Second, existing network simulators can be coupled with existing
    	traffic simulators. We favour the second approach in this work as
    	we believe that the wireless communication characteristics influence
    	the data transfer significantly and an oversimplified transmission
    	model can lead to flawed results. In this paper we describe the feedback
    	loop built by the Traffic Control Interface (TraCI) to outline its
    	versatility. We explain its use to determine possible energy consumption
    	reduction when traffic lights send their phase schedules to vehicles.},
      keywords = {vanet application, energy saving, simulation environment, ad-hoc network},
      owner = {wegener},
      timestamp = {2008.10.01}
    }
    
    
    
  • Nils Glombitza and Horst Hellbrück and Stefan Fischer: Evaluating Ad Hoc Networks with FRED. in The 9th ACM International Symposium on Mobile Ad Hoc Networking and Computing (ACM Mobihoc 2008), Demo Session, Hong Kong, China, May, 2008
    BibTeX Link
    @INPROCEEDINGS{glombitza2008mobihoc,
      author = {Nils Glombitza and Horst Hellbrück and Stefan Fischer},
      title = {Evaluating Ad Hoc Networks with FRED},
      booktitle = {The 9th ACM International Symposium on Mobile Ad Hoc Networking and
    	Computing (ACM Mobihoc 2008), Demo Session},
      year = {2008},
      address = {Hong Kong, China},
      month = {May},
      url = {http://www.itm.uni-luebeck.de/projects/fred/mobihoc2008/fred_poster.pdf}
    }
    
    
  • Axel Wegener and Micha\l Piórkowski and Maxim Raya and Horst Hellbrück and Stefan Fischer and Jean-Pierre Hubaux: TraCI: An Interface for Coupling Road Traffic and Network Simulators. in Proceedings of 11th Communications and Networking Simulation Symposium (CNS`08), Ottawa, Canada, apr, 2008
    BibTeX
    @INPROCEEDINGS{We2008TraCI,
      author = {Axel Wegener and Micha{\l} Pi{\'o}rkowski and Maxim Raya and Horst Hellbr\"uck and Stefan Fischer and Jean-Pierre Hubaux},
      title = {TraCI: An Interface for Coupling Road Traffic and Network Simulators},
      booktitle = {Proceedings of 11th Communications and Networking Simulation Symposium
    	(CNS'08)},
      year = {2008},
      address = {Ottawa, Canada},
      month = {apr},
      abstract = {Vehicular Ad-Hoc Networks (VANETs) enable communication among vehicles
    	as well as between vehicles and roadside infrastructures. Currently
    	available software tools for VANET research still lack the ability
    	to asses the usability of vehicular applications. In this article,
    	we present Traffic Control Interface (TraCI) a technique for interlinking
    	road traffic and network simulators. It permits us to control the
    	behavior of vehicles during simulation runtime, and consequently
    	to better understand the influence of VANET applications on traffic
    	patterns. In contrast to the existing approaches, i.e., generating
    	mobility traces that are fed to a network simulator as static input
    	files, the online coupling allows the adaptation of drivers' behavior
    	during simulation runtime. This technique is not limited to a special
    	traffic simulator or to a special network simulator. We introduce
    	a general framework for controlling the mobility which is adaptable
    	towards other research areas. We describe the basic concept, design
    	decisions and the message format of this open-source architecture.
    	Additionally, we provide implementations for non-commercial traffic
    	and network simulators, i.e., SUMO and ns2 respectively. This coupling
    	enables for the first time systematic evaluations of VANET applications
    	in realistic settings.},
      owner = {wegener},
      timestamp = {2008.01.03}
    }
    
    
    
  • Nils Glombitza and Martin Lipphardt and Horst Hellbrück and Stefan Fischer: FRED - An Application for a Real-Life Large Scale Multihop Ad Hoc Network. in Proceedings of the 5th Annual IEEE/IFIP Conference on Wireless On demand Network Systems and Services (WONS`08), 2008
    BibTeX Link
    @INPROCEEDINGS{glombitza2008wons,
      author = {Nils Glombitza and Martin Lipphardt and Horst Hellbrück and Stefan
    	Fischer},
      title = {{FRED} -- An Application for a Real-Life Large Scale Multihop Ad Hoc
    	Network},
      booktitle = {Proceedings of the 5th Annual IEEE/IFIP Conference on Wireless On
    	demand Network Systems and Services (WONS'08)},
      year = {2008},
      abstract = {Simulations were standard in the Mobile Ad Hoc Network (MANET) research
    	community in the past. New protocols and algorithms were validated
    	via simulations by network simulators such as ns2 or GloMoSim. However,
    	even with the increasing number of published simulation papers, contradictory
    	results are decreasing the confidence in simulations today. First
    	experimental results show that simulation models for Ad Hoc networks
    	are far from being realistic and protocols developed in simulations
    	failed in real word environments. As a result, the demand for experimental
    	results and application deployments within the research community
    	increases. In this paper, we introduce FRED as a suitable application
    	to conduct protocol evaluations as well as user acceptance surveys.
    	FRED (Flexible Radio Enabled Dialog) is an enhanced TED-System that
    	allows asynchronous surveys or quizzes with a multi hop radio network,
    	where individual participants conduct the survey independent of others.
    	FRED is based on the pacemate sensor network platform that provides
    	a comfortable lightweight housing, a simple radio interface and an
    	intuitive GUI that allows long term evaluations of user acceptance
    	and network protocols.},
      owner = {glombitza},
      timestamp = {2007.11.21},
      url = {http://www.tm.uka.de/wons2008/}
    }
    
    
  • Bjoern Gressman and Horst Hellbrück: FlowerNet - How to design a user friendly Sensor Network. in Proceedings of The Seventh Annual Mediterranean Ad Hoc Networking Workshop (Med-Hoc-Net 2008), un, 008,
    BibTeX
    @inproceedings{hellbrueck08flowernet,
    	author={Bjoern Gressman and Horst Hellbrück},
    	booktitle={Proceedings of The Seventh Annual Mediterranean Ad Hoc Networking Workshop (Med-Hoc-Net 2008)},
    	title={FlowerNet - How to design a user friendly Sensor Network},
    	year=2008,
    	month=jun
    }
    
    
  • Horst Hellbrück and Axel Wegener and Stefan Fischer: AutoCast: A General-Purpose Data Dissemination Protocol and its Application in Vehicular Networks. Ad Hoc & Sensor Wireless Networks journal (AHSWN), to appear in, 008,
    BibTeX
    @article{hellbrueck08autocast,
    	author={Horst Hellbrück and Axel Wegener and Stefan Fischer},
    	journal={Ad Hoc & Sensor Wireless Networks journal (AHSWN)},
    	title={AutoCast: A General-Purpose Data Dissemination Protocol and its Application in Vehicular Networks},
    	year=2008,
       month={to appear in }
    }
    
    

2007

  • Axel Wegener and Horst Hellbrück and Stefan Fischer and Christiane Schmidt and Sándor Fekete: AutoCast: An Adaptive Data Dissemination Protocol for Traffic Information Systems. in Proceedings of the 66th IEEE Vehicular Technology Conference Fall 2007 (VTC2007-Fall), Baltimore, USA, October, 2007
    BibTeX
    @INPROCEEDINGS{We2007AutoCast,
      author = {Axel Wegener and Horst Hellbr\"uck and Stefan Fischer and Christiane
    	Schmidt and S\'andor Fekete},
      title = {AutoCast: An Adaptive Data Dissemination Protocol for Traffic Information
    	Systems},
      booktitle = {Proceedings of the 66th IEEE Vehicular Technology Conference Fall
    	2007 (VTC2007-Fall)},
      year = {2007},
      address = {Baltimore, USA},
      month = {October},
    }
    
    
  • Carsten Buschmann and Horst Hellbrück and Stefan Fischer and Kröller, Alexander and Fekete, S`andor: Radio propagation-aware distance estimation based on neighborhood comparison. in Proceedings of the 4th European conference on Wireless sensor networks, pp. 325-340, Springer-Verlag, Berlin, Heidelberg, 2007
    BibTeX Link
    @inproceedings{Buschmann:2007:RPD:1758126.1758154,
     author = {Carsten Buschmann and Horst Hellbr\"{u}ck and Stefan Fischer and Kr\"{o}ller, Alexander and Fekete, S\`{a}ndor},
     title = {Radio propagation-aware distance estimation based on neighborhood comparison},
     booktitle = {Proceedings of the 4th European conference on Wireless sensor networks},
     series = {EWSN'07},
     year = {2007},
     isbn = {978-3-540-69829-6},
     location = {Delft, The Netherlands},
     pages = {325--340},
     numpages = {16},
     url = {http://portal.acm.org/citation.cfm?id=1758126.1758154},
     acmid = {1758154},
     publisher = {Springer-Verlag},
     address = {Berlin, Heidelberg},
    } 
    
    
  • Dennis Pfisterer and Marco Wegner and Horst Hellbrück and Christian Werner and Stefan Fischer: Energy-optimized Data Serialization For Heterogeneous WSNs Using Middleware Synthesis. in Proceedings of The Sixth Annual Mediterranean Ad Hoc Networking Workshop (Med-Hoc-Net 2007), un,, 007,
    BibTeX Link
    @inproceedings{pfisterer07microfibre,
    	author={Dennis Pfisterer and  Marco Wegner and Horst Hellbrück and Christian Werner and Stefan Fischer},
    	booktitle={Proceedings of The Sixth Annual Mediterranean Ad Hoc Networking Workshop (Med-Hoc-Net 2007)},
    	title={Energy-optimized Data Serialization For Heterogeneous WSNs Using Middleware Synthesis},
    	url="http://di.ionio.gr/medhocnet07/wp-content/uploads/papers/270.pdf",
    	year=2007,
    	month=jun,
    }
    
    
    
  • Carsten Buschmann and Christian Werner and Horst Hellbrück and Stefan Fischer: NIDES: Ein Verfahren zur Multihop-Distanzschätzung mittels Nachbarschaftsanalyse. in Proceedings of the 15. ITG/GI - Fachtagung Kommunikation in Verteilten Systemen (KiVS), 007,
    BibTeX
    @inproceedings{Buschmann07nides,
    	author={Carsten Buschmann and Christian Werner and Horst Hellbrück and Stefan Fischer},
    	booktitle={Proceedings of the 15. ITG/GI - Fachtagung Kommunikation in Verteilten Systemen (KiVS)},
    	title={NIDES: Ein Verfahren zur Multihop-Distanzschätzung mittels Nachbarschaftsanalyse},
    	year=2007,
    }
    
    
  • Martin Lipphardt and Horst Hellbrück and Dennis Pfisterer and Stefan Ransom and Stefan Fischer: Practical Experiences on Mobile Inter-Body-Area-Networking. in Proceedings of the Second International Conference on Body Area Networks (BodyNets`07), 007,
    BibTeX Link
    @inproceedings{lipphardt07marathonnet,
    	author={Martin Lipphardt and Horst Hellbrück and Dennis Pfisterer and Stefan Ransom and Stefan Fischer},
    	booktitle={Proceedings of the Second International Conference on Body Area Networks (BodyNets'07)},
    	title={Practical Experiences on Mobile Inter-Body-Area-Networking},
    	url={http://www.bodynets.org/},
    	year=2007,
    }
    
    
  • Martin Lipphardt and Horst Hellbrück and Axel Wegener and Stefan Fischer: GRAPE - Gradient based Routing for All PurposE. in Proceedings of the 4th IEEE International Conference on Mobile Ad-hoc and Sensor Systems (MASS `07) as part of the MHWMN Workshop, 007,
    BibTeX Link
    @inproceedings{lipphardt07grape,
    	author={Martin Lipphardt and Horst Hellbrück and Axel Wegener and Stefan Fischer},
    	booktitle={Proceedings of the 4th IEEE International Conference on Mobile Ad-hoc and Sensor Systems (MASS '07) as  part of the MHWMN Workshop},
    	title={{GRAPE} - Gradient based Routing for All PurposE},
    	url={http://cnd.iit.cnr.it/mass2007/},
    	year=2007,
    }
    
    

2006

  • Dennis Pfisterer and Martin Lipphardt and Carsten Buschmann and Horst Hellbrück and Stefan Fischer and Jan Hendrik Sauselin: MarathonNet: Adding value to large scale sport events - A connectivity analysis. in Proceedings of the International Conference on Integrated Internet Ad hoc and Sensor Networks (InterSense), may,, 2006
    BibTeX Link
    @inproceedings{pfisterer06marathonconnectivity,
      author = {Dennis Pfisterer and Martin Lipphardt and Carsten Buschmann and Horst Hellbrück and Stefan Fischer and Jan Hendrik Sauselin},
      title = {MarathonNet: Adding value to large scale sport events - A connectivity analysis},
      booktitle = {Proceedings of the International Conference on Integrated Internet Ad hoc and Sensor Networks (InterSense)},
      month =   "may",
      year = {2006},
      url="http://portal.acm.org/citation.cfm?id=1142680.1142696"
    }
    
    
    
  • Axel Wegener and Elad M. Schiller and Horst Hellbrück and S\`andor P. Fekete and Stefan Fischer: Hovering Data Clouds: A Decentralized and Self-Organizing Information System. in Proceedings of International Workshop on Self-Organizing Systems, Passau, Germany, ep, 006,
    BibTeX
    @incollection{wegener06hdc,
          author={Axel Wegener and Elad M. Schiller and Horst Hellbr{\"u}ck and S\'{a}ndor P. Fekete and Stefan Fischer},
          title={Hovering Data Clouds: A Decentralized and Self-Organizing Information System},
          booktitle={Proceedings of International Workshop on Self-Organizing Systems, Passau, Germany},
          year=2006,
          month=sep
    }
    
    
    
  • Dennis Pfisterer and Carsten Buschmann and Horst Hellbrück and Stefan Fischer: Data-type centric middleware synthesis for wireless sensor network application development. in Proceedings of the Fifth Annual Mediterranean Ad Hoc Networking Workshop (Med-Hoc-Net 2006), 006,
    BibTeX Link
    @inproceedings{pfisterer06medhocnetfabric,
     author={Dennis Pfisterer and  Carsten Buschmann and  Horst Hellbrück and  Stefan Fischer},
     booktitle={Proceedings of the Fifth Annual Mediterranean Ad Hoc Networking Workshop (Med-Hoc-Net 2006)},
     title={Data-type centric middleware synthesis for wireless sensor network application development},
     year=2006,
     url = "http://www.itm.uni-luebeck.de/users/pfisterer/pub/medhocnet06pfisterer.pdf"
    	 
    }
    
    
  • Dennis Pfisterer and Horst Hellbrück and Stefan Fischer: FABRIC: Towards Data Type-Centric Middleware Synthesis. in Proceedings of the 2006 International Conference on Distributed Computing (DCOSS 06), 006
    BibTeX
    @inproceedings{pfisterer06fabricdcoss,
     author={Dennis Pfisterer and Horst Hellbrück and Stefan Fischer},
     booktitle={Proceedings of the 2006 International Conference on Distributed Computing (DCOSS 06)},
     title={FABRIC: Towards Data Type-Centric Middleware Synthesis},
     year=2006
    }
    
    
    
  • Dennis Pfisterer and Carsten Buschmann and Horst Hellbrück and Stefan Fischer: Supporting WSN Application Development Using Data type-centric Middleware Synthesis. 006
    BibTeX
    @techreport{pfisterer06supportingwsndev,
        author={Dennis Pfisterer and Carsten Buschmann and Horst Hellbrück and Stefan Fischer},
        institution={5. GI/ITG KuVS Fachgespräch Drahtlose Sensornetze},
        title={Supporting WSN Application Development Using Data type-centric Middleware Synthesis},
        year=2006
    }
    
  • Horst Hellbrück and Martin Lipphardt and Dennis Pfisterer and Stefan Ransom and Stefan Fischer: Praxiserfahrungen mit MarathonNet - Ein mobiles Sensornetz im Sport. PIK - Praxis der Informationsverarbeitung und Kommunikation, no. 9,, 006
    BibTeX
    @article{hellbrueck06pikmnet,
    	author={Horst Hellbrück and Martin Lipphardt and Dennis Pfisterer and Stefan Ransom and Stefan Fischer},
    	journal={PIK - Praxis der Informationsverarbeitung und Kommunikation},
    	number=4,
    	title={Praxiserfahrungen mit MarathonNet - Ein mobiles Sensornetz im Sport},
    	volume=29,
    	year=2006
    }
    
    

2004

  • Horst Hellbrück: Analytische und simulationsbasierte Verfahren zur Konnektivitätsbestimmung und -verbesserung von Ad-Hoc-Netzen. Shaker-Verlag, sep,, 2004,
    BibTeX Link
    @Book{hellDis04,
      author = {Horst Hellbrück},
      title = {{Analytische und simulationsbasierte Verfahren zur Konnektivitätsbestimmung und -verbesserung von Ad-Hoc-Netzen}},
      publisher = {Shaker-Verlag},
      year = 2004,
      month = sep,
      url="http://www.shaker.de/Online-Gesamtkatalog/Details.idc?ISBN=3-8322-3142-0"
    }
    
    
  • Andreas Eberhart and Stefan Kraus and Ulrich Walther and Horst Hellbrück and Vasu Chandrasekhara: Java 5.0 - Das Tiger-Release. Carl-Hanser-Verlag, 2004,
    BibTeX Link
    @Book{hellJava04,
      author = {Andreas Eberhart and Stefan Kraus and Ulrich Walther and Horst Hellbrück and Vasu Chandrasekhara},
      title = {{Java 5.0 - Das Tiger-Release}},
      publisher = {Carl-Hanser-Verlag},
      year = 2004,
      url = {http://www.hanser.de/buch.asp?isbn=3-446-22946-9&area=Computer}
    }
    
    
  • Horst Hellbrück and Stefan Fischer: MINE and MILE: improving connectivity in mobile ad-hoc networks. SIGMOBILE Mob. Comput. Commun. Rev., no. 8, pp. 19-36, ACM, New York, NY, USA, October, 2004
    BibTeX Link
    @article{Hellbruck:2004:MMI:1052871.1052873,
     author = {Horst Hellbr\"{u}ck and Stefan Fischer},
     title = {MINE and MILE: improving connectivity in mobile ad-hoc networks},
     journal = {SIGMOBILE Mob. Comput. Commun. Rev.},
     volume = {8},
     issue = {4},
     month = {October},
     year = {2004},
     issn = {1559-1662},
     pages = {19--36},
     numpages = {18},
     url = {http://doi.acm.org/10.1145/1052871.1052873},
     doi = {http://doi.acm.org/10.1145/1052871.1052873},
     acmid = {1052873},
     publisher = {ACM},
     address = {New York, NY, USA},
    } 
    
    
    

2003

  • Horst Hellbrück and Stefan Fischer,: Increasing the Connectivity of Ad-Hoc Networks,. in Kommunikation in Verteilten Systemen (KIVS03), Leipzig,, Springer-Verlag,, feb,, 2003
    BibTeX
    @InProceedings{hellFisKIVS03,
      author =       "Horst Hellbr{\"u}ck and Stefan Fischer",
      title =        "{Increasing the Connectivity of Ad-Hoc Networks}",
      booktitle =    "{Kommunikation in Verteilten Systemen (KIVS03), Leipzig}",
      month =        feb,
      series =   "Lecture Notes in Computer Science",
      publisher =    "Springer-Verlag",
      year =         "2003"
    }
    
    
    

2002

  • Horst Hellbrück and Stefan Fischer: Towards Analysis and Simulation of Ad-Hoc Networks. in Proceedings of the 2002 International Conference on Wireless Networks (ICWN02), pp. 69-75, IEEE Computer Society Press, Las Vegas, Nevada, USA, June, 2002
    BibTeX Link
    @inproceedings{hellfisicwn02,
      author = {Horst Hellbrück and Stefan Fischer},
      title = {Towards Analysis and Simulation of Ad-Hoc Networks},
      booktitle = {Proceedings of the 2002 International Conference on Wireless Networks (ICWN02)},
      publisher = {IEEE Computer Society Press},
      year = {2002},
      month = {June},
      address = {Las Vegas, Nevada, USA},
      pages = {69--75},
      url = {http://www.itm.uni-luebeck.de/users/hellbrueck/pubs/hellFisICWN02.pdf}
    }
    
    
  • Horst Hellbrück and Stefan Fischer: Ansätze zur Analyse und Simulation von Ad-Hoc Netzwerken. in Proceedings of the 1st German Workshop on Mobile Ad-Hoc Networks (GI-Edition), pp. 7-27, Ulm, Germany, March, 2002
    BibTeX Link
    @inproceedings{hellFisWMAN02,
      title = {Ansätze zur Analyse und Simulation von Ad-Hoc Netzwerken},
      author = {Horst Hellbrück and Stefan Fischer},
      booktitle = {Proceedings of the 1st German Workshop on Mobile Ad-Hoc Networks (GI-Edition)},
      year = {2002},
      month = {March},
      address = {Ulm, Germany},
      pages = {7--27},
      url = {http://giserver.gi-ev.de/LNI/proceedings/P-11.shtml}
    }
    
    
    

2001

  • Horst Hellbrück and Stefan Fischer: Basic Analysis and Simulation of Ad-Hoc Networks. December,, 2001
    BibTeX Link
    @techreport{hellfistr01,
      author = {Horst Hellbrück and Stefan Fischer},
      title = {Basic Analysis and Simulation of Ad-Hoc Networks},
      institution = "International University Bruchsal",
      number = "TR01",
      month = "December",
      year = {2001},
      url = {http://www.itm.uni-luebeck.de/users/hellbrueck/pubs/hellFisTR01.pdf}
    }
    
    
    
    

2013

  • Sebastian Ebers and Horst Hellbrück and Dennis Pfisterer and Stefan Fischer: Short Paper: Collaboration Between VANET Applications Based on Open Standards. in 2013 IEEE Vehicular Networking Conference (VNC) (IEEE VNC 2013), Boston, USA,, ec,, 013,
    BibTeX
    @INPROCEEDINGS{Eber1312:Short,
    AUTHOR={Sebastian Ebers and Horst {Hellbr{\"u}ck} and Dennis Pfisterer
    and Stefan Fischer},
    TITLE={Short Paper: Collaboration Between {VANET} Applications Based on Open Standards},
    BOOKTITLE={2013 IEEE Vehicular Networking Conference (VNC) (IEEE VNC 2013)},
    ADDRESS="Boston, USA",
    DAYS=16,
    MONTH=dec,
    YEAR=2013,
    KEYWORDS="VANET; Traffic Information System; Semantic Web Technologies; Ontology; V2V Communication; Interoperability; VANET Ontology; VANET Data Representation"
    }