Kovacevic, Aleksandra ; Heckmann, Oliver ; Liebau, N. ; Steinmetz, Ralf (2008):
Location Awareness - Improving Distributed Multimedia Communication.
In: Proceedings of the IEEE, 96 (1), pp. 131-142. IEEE, e-ISSN 1558-2256,
DOI: 10.1109/JPROC.2007.909913,
[Article]

Kovacevic, Aleksandra ; Heckmann, Oliver ; Liebau, Nicolas ; Steinmetz, Ralf (2008):
Location Awareness: Improving Distributed Multimedia Communication.
In: Proceedings of the IEEE ; 96.2008,1 : Special issue, In: Recent advances in distributed multimedia communications / ed. by C. W. Chen ..., pp. 131-142, Piscataway, NJ, IEEE, [Book Section]

Repp, Nicolas ; Berbner, Rainer ; Eckert, Julian ; Heckmann, Oliver ; Schulte, Stefan ; Steinmetz, Ralf (2007):
Der Einfluß von Transportschicht-Anomalien auf die Performanz von Web Services.
In: Kommunikation in verteilten Systemen : 15. ITG-GI-Fachtagung vom 26. Februar bis 2. März 2007 in Bern, Schweiz ; Industriebeiträge, Kurzbeiträge und Workshops / KIVS 2007. Hrsg. T. Braun ... (Hrsg.). - Berlin [u.a.] : VDE-Verl., 2007, S.s 117-122 ISBN:, Berlin [u.a.], VDE-Verl., [Conference or Workshop Item]

Berbner, Rainer ; Spahn, Michael ; Repp, Nicolas ; Heckmann, Oliver ; Steinmetz, Ralf (2007):
Dynamic Replanning of Web Service Workflows.
In: IEEE DEST 2007 <Cairns,2007> ; IEEE International Conference on Digital Ecosystems and Technologies ; CD, pp. CD, [Conference or Workshop Item]

Turczyk, Lars Arne ; Heckmann, Oliver ; Steinmetz, Ralf (2007):
File Valuation Information Lifecycle Management.
In: 18th IRMA International Conference <Vancouver,2007> ; 347-350, pp. 347-350, [Conference or Workshop Item]

Turczyk, Lars Arne ; Heckmann, Oliver ; Steinmetz, Ralf (2007):
Simulation of Information Lifecycle Management.
In: 18th IRMA International Conference <Vancouver,2007> ; 1063-1066, pp. 1063-1066, [Conference or Workshop Item]

Berbner, Rainer ; Spahn, Michael ; Repp, Nicolas ; Heckmann, Oliver ; Steinmetz, Ralf (2007):
WSQoSX-A Wos architecture for Web Service workflows.
In: ICSOC 2007 <Wien,2007> ; 5th International Conference on ServiceOriented Computing ; 623-624 ; ISBN: 9783540749738, pp. 623-624, [Conference or Workshop Item]

Berbner, Rainer ; Spahn, Michael ; Repp, Nicolas ; Heckmann, Oliver ; Steinmetz, Ralf (2006):
An Approach for Replanning of Web Service Workflows.
In: Americas Conference on Information Systems (AMCIS 2006) <Acapulco,2006>, [Conference or Workshop Item]

Darlagiannis, Vasilios ; Liebau, Nicolas ; Heckmann, Oliver ; Mauthe, Andreas ; Steinmetz, Ralf (2006):
Caching Indices for Efficient Lookup in Structured Overlay Networks.
In: Agents and peer-to-peer computing : 4th international workshop, AP2PC 2005, Utrecht, The Netherlands, July 25, 2005 ; revised papers / Zoran Despotovic; Sam Joseph; Claudio Sartori (eds.). - Berlin [u.a.] : Springer, 2006, s. 88-100 (Lecture notes in comp, Berlin [u.a.], Springer, [Conference or Workshop Item]

Liebau, Nicolas ; Heckmann, Oliver ; Kovacevic, Aleksandra ; Mauthe, Andreas ; Steinmetz, Ralf (2006):
Charging in Peer-to-Peer Systems based on a Token Accounting System.
In: 5th International Workshop on Advanced Internet Charging and QoS Technologies (ICQT'06) <5, 2006, St. Malo, Frankreich> , S. 49-60, [Conference or Workshop Item]

Repp, Nicolas ; Berbner, Rainer ; Heckmann, Oliver ; Steinmetz, Ralf (2006):
A Cross-Layer Approach to Performance Monitoring of Web Services.
In: Workshop on Emerging Web Services Technology (in conjunction with IEEE ECOWS 2006) <Zürich,2006> ; 17 - 27, pp. 17 - 27, [Conference or Workshop Item]

Repp, Nicolas ; Berbner, Rainer ; Lenz, Joerg ; Kaplan, Christiane ; Perez, Alejandro ; Heckmann, Oliver ; Steinmetz, Ralf (2006):
Digitalisierte eigenhaendige Unterschrift im Online-Banking.
In: D-A-CH Security 2006 <Klagenfurt,2006> ; 381-391, pp. 381-391, [Conference or Workshop Item]

Schmitt, Johannes ; Heckmann, Oliver ; König, André ; Hollick, Matthias ; Steinmetz, Ralf (2006):
ENUM-Erweiterung zur Sicherung der Kommunikation zwischen VoIP-Infrastrukturen.
In: Essener Workshop zur Netzwerksicherheit (EWNS) <Essen,2006>, [Conference or Workshop Item]

Heckmann, Oliver (2006):
Efficiency and Quality of Service of IP Networks.
In: it - Information Technology Journal, 3, pp. 177-180. [Article]

Berbner, Rainer ; Spahn, Michael ; Repp, Nicolas ; Heckmann, Oliver ; Steinmetz, Ralf (2006):
Heuristics for QoS-aware Web Service Composition.
In: IEEE International Conference on Web Services (ICWS 2006) <4, Chicago, 2006> ; S. 72 - 77, [Conference or Workshop Item]

Darlagiannis, Vasilios ; Mauthe, Andreas ; Heckmann, Oliver ; Liebau, Nicolas ; Steinmetz, Ralf (2006):
On Routing in a Two-Tier Overlay Network based on de Bruijn Digraphs.
In: 2006 IEEE/IFIP Network Operations and Management Symposium <Vancouver,2006>, [Conference or Workshop Item]

Heckmann, Oliver ; Gomez Sanchis, Marc ; Kovacevic, Aleksandra ; Liebau, Nicolas ; Steinmetz, Ralf (2006):
A Peer-to-Peer System for Location-based Services.
In: Peer-to-Peer Paradigm (PTPP) Track at AMCIS 2006 <Acapulco,2006>, [Conference or Workshop Item]

Liebau, Nicolas C. ; Heckmann, Oliver ; Kovacevic, Aleksandra ; Tafreschi, Omid ; Fidler, Markus ; Mauthe, Andreas ; Steinmetz, Ralf (2006):
A Secure Quorum Based Membership Mechanism for P2P Systems.
In: 12th Americas Conference on Information Systems <12, 2006, Acapulco>, [Conference or Workshop Item]

Turczyk, Lars Arne ; Heckmann, Oliver ; Berbner, Rainer ; Steinmetz, Ralf (2006):
An analytical model of Information Lifecycle Management.
In: Annual IRMA International Conference <17, 2006, Washington> ; 527 - 530, pp. 527 - 530, [Conference or Workshop Item]

Turczyk, Lars Arne ; Heckmann, Oliver ; Berbner, Rainer ; Steinmetz, Ralf (2006):
A formal approach to Information Lifecycle Management.
In: Annual IRMA International Conference <17, 2006, Washington> ; S. 531-533, [Conference or Workshop Item]

Heckmann, Oliver (2005):
A System-oriented Approach to Efficiency and Quality of Service for Internet Service Providers.
Darmstadt, Technische Universität, TU Darmstadt,
[Ph.D. Thesis]

Liebau, Nicolas ; Darlagiannis, Vasilios ; Heckmann, Oliver ; Steinmetz, Ralf (2005):
Asymmetric Incentives in Peer-to-Peer Systems.
In: Proceedings of the American Conference on Information Systms (AMCIS 2005), August 2005, [Conference or Workshop Item]

Heckmann, Oliver ; Schmitt, Jens (2005):
Best-effort versus reservations revisited.
In: Quality of service - IWQoS 2005 : 13th international workshop, IWQoS 2005, Passau, Germany, June 21-23, 2005 ; proceedings / Hermann de Meer ... (eds.). - Berlin [u.a.] : Springer, 2005, S. 151-163 (Lecture notes in computer science ; 3552) ISBN: 3-540-26, Berlin [u.a.], Springer, [Conference or Workshop Item]

Berbner, Rainer ; Heckmann, Oliver ; Mauthe, Andreas (2005):
Eine Dienstgüte unterstützende Web-Service-Architektur für flexible Geschäftsprozesse.
In: Wirtschaftsinformatik, 47, pp. 268-277. [Article]

Mauthe, Andreas ; Heckmann, Oliver (2005):
Peer-to-Peer and GRID computing.
In: Proceedings of the Networking and Electronic Commerce Research Conference (NAEC 2005); Lake Garda, Italy, October 2005, S. 399-408, [Conference or Workshop Item]

Darlagiannis, Vasilios ; Mauthe, Andreas ; Heckmann, Oliver ; Liebau, Nicolas ; Steinmetz, Ralf (2005):
Role specialization to support peer-to-peer heterogeneity.
In: Proceedings of The 2005 Networking and Electronic Commerce Research Conference (NAEC 2005), October 2005, S. 486-501, [Conference or Workshop Item]

Ortner, Erich ; Berbner, Rainer ; Grollius, Tobias ; Heckmann, Oliver ; Repp, Nicolas ; Steinmetz, Ralf (2005):
An approach for the management of service-oriented architecture (SoA) based application systems.
In: Enterprise modelling and information systems architectures : workshop, Klagenfurt, Austria, October 24 - 25, 2005 / [the Workshop on Enterprise Modelling and Information Systems Architectures took place in conjunction with the ER'05]. Gesellschaft für In, Bonn, Ges. für Informatik, [Conference or Workshop Item]

Berbner, Rainer ; Heckmann, Oliver ; Steinmetz, Ralf (2005):
An architecture for a QoS driven compostion of web service based workflows.
In: Proceedings of the Networking and Electronic Commerce Research Conference; Lake Garda, Italy, October 2005, [Conference or Workshop Item]

Heckmann, Oliver ; Liebau, Nicolas ; Darlagiannis, Vasilios ; Bock, Axel ; Mauthe, Andreas ; Steinmetz, Ralf (2005):
A peer-to-peer content distribution network.
In: From integrated publication and information systems to virtual information and knowledge environments : essays dedicated to Erich J. Neuhold on the occasion of his 65th birthday / Matthias Hemmje ... (ed.). - Berlin [u.a.] : Springer, 2005. - S.69-78 (Lec, Berlin [u.a.], Springer, [Book Section]

Liebau, Nicolas ; Heckmann, Oliver ; Hubbertz, Ian ; Steinmetz, Ralf (2005):
A peer-to-peer webcam network.
In: Kommunikation in Verteilten Systemen (KiVS 2005), Workshop Peer-to-Peer-Systeme und -Anwendungen, Kaiserslautern, S. 151--154, März 2005., [Conference or Workshop Item]

Berbner, Rainer ; Ortner, Erich ; Grollius, Tobias ; Heckmann, Oliver ; Repp, Nicolas ; Steinmetz, Ralf
Desel, J. ; Frank, U. (eds.) (2005):
An approach for the Management of Service-oriented Architecture (SoA) based Application Systems.
75, In: EMISA 2005, pp. 208-221,
Lecture Notes in Informatics, [Conference or Workshop Item]

Heckmann, Oliver ; Steinmetz, Ralf (2004):
On the elasticity of traffic matrices and the impact on capacity expansion.
In: Networks 2004 : 11th International Telecommunications Network Strategy and Planning Symposium, June 13 - 16, 2004, Vienna, Austria ; [proceedings] / organised by OVE, Austrian Electrotechnical Association ... Ed.: Hermann Kaindl.- Berlin [u.a.] : VDE-Verl, Berlin [u.a.], VDE-Verl., [Conference or Workshop Item]

Heckmann, Oliver ; Bock, Axel ; Mauthe, Andreas ; Steinmetz, Ralf (2004):
The eDonkey file-sharing network.
In: Workshop on Algorithms and Protocols for Efficient Peer-To-Peer Applications <2004, Ulm>: Proceedings, [Conference or Workshop Item]

Heckmann, Oliver (2004):
A system-oriented approach to efficiency and quality of service for internet service providers.
Darmstadt, Techn. Univ., TU Darmstadt,
[Ph.D. Thesis]

Birck, Hannes ; Heckmann, Oliver ; Mauthe, Andreas ; Steinmetz, Ralf (2004):
The two-step overlay network simulation approach.
In: International Conference on Software, Telecommunications and Computer Networks <2004, Split>: Proceedings ... SoftCOM, Split, Oct. 2004.- S. 165-169, [Conference or Workshop Item]

Heckmann, Oliver ; Piringer, Michael ; Schmitt, Jens ; Steinmetz, Ralf (2003):
Generating realistic ISP-level network topologies.
In: IEEE Communication Letters, 7 (7), pp. 335-336. IEEE, ISSN 1089-7798,
DOI: 10.1109/LCOMM.2003.814708,
[Article]

Briscoe, Bob ; Darlagiannis, Vasilios ; Heckmann, Oliver ; Oliver, Huw ; Siris, Vasilios ; Songhurst, David ; Stiller, Burkhard (2003):
A market managed multi-service internet (M3I).
In: Computer communications, 26 (4), pp. 404-414. Elsevier, e-ISSN 1873-703X,
DOI: 10.1016/S0140-3664(02)00158-5,
[Article]

Heckmann, Oliver ; Pandit, Krishna ; Schmitt, Jens ; Steinmetz, Ralf (2003):
KOM ScenGen : the Swiss army knife for simulation and emulation experiments.
In: International Workshop on Multimedia Interactive Protocols and Systems <1, 2003, Napoli>: Interactive multimedia on next generation networks ... proceedings MIPS 2003 / Giorgio Ventre ...ed.- Berlin [u.a.]: Springer, 2003.- XIV, 420 S.- (Lecture notes in, Berlin [u.a.], Springer, [Conference or Workshop Item]

Heckmann, Oliver ; Schmitt, Jens ; Steinmetz, Ralf (2003):
On interconnection models and strategies.
In: International Conference on Electronic Commerce Research <6, 2003, Dallas, Tex.>: Proceedings ... ICECR-6.- S. 208-225, [Conference or Workshop Item]

Heckmann, Oliver ; Piringer, Michael ; Schmitt, Jens ; Steinmetz, Ralf (2003):
On realistic network topologies for simulation.
In: MoMeTools <2003, Karlsruhe>: Workshop on Models, Methods and Tools for Reproducible Network Research, in conjunction with SIGCOMM, Karlsruhe, August 2003 ...- S. 28-32, [Conference or Workshop Item]

Zink, Michael ; Heckmann, Oliver ; Schmitt, Jens ; Steinmetz, Ralf (2003):
Polishing: a technique to reduce variations in cached layer-encoded video.
In: Euromicro Conference <29, 2003, Belek, Antalya>: Proceedings .../ ed. Gerhard Chroust.- Los Alamitos, Calif.: IEEE Computer Soc., 2003.- 426 S.- ISBN 0-7695-1996-2.- S. 249-254, Los Alamitos, Calif., IEEE Computer Soc., [Conference or Workshop Item]

Heckmann, Oliver ; Schmitt, Jens ; Steinmetz, Ralf (2002):
Multi-period resource allocation at system edges.
In: Proceedings of the Tenth International Conference on Telecommunication Systems : modeling and analysis; Oct. 3-6, 2002, Monterey, Calif. / ICTSM 10.- Monterey, Calif., 2002.- S. 1-25, [Conference or Workshop Item]

Heckmann, Oliver ; Schmitt, Jens ; Steinmetz, Ralf (2002):
Robust bandwidth allocation strategies.
In: 2002 Tenth IEEE International Workshop on Quality of Service, IWQos 2002, [15-17 May 2002, Miami Beach, Florida, USA].- Piscataway, NJ : IEEE Operations Center, 2002.- S. 138-147, Piscataway, NJ, IEEE Operations Center, [Conference or Workshop Item]

Schmitt, Jens ; Heckmann, Oliver ; Karsten, Martin ; Steinmetz, Ralf (2001):
Decoupling different time scales of network QoS systems.
In: International Symposium on Performance Evaluation of Computer and Telecommunication Systems: SPECTS 2001 <2001, Orlando, Florida>; Proceedings. - San Diego, Calif.: Soc. for Modelling and Computer Simulation International, 2001. S. 428-435 (Received best, San Diego, Calif., Soc. for Modelling and Computer Simulation International, [Conference or Workshop Item]

Heckmann, Oliver ; Schmitt, Jens ; Steinmetz, Ralf (2001):
Multi-period resource allocation at system edges - capacity management in a multi-provider multi-service internet.
In: LCN 2001: IEEE Conference on Local Computer Networks <26, 2001, Tampa, Fla.>: Proceedings. - Los Alamitos, Calif.: IEEE Computer Soc., 2001, Los Alamitos, Calif., IEEE Computer Soc., [Conference or Workshop Item]

Heckmann, Oliver ; Darlagiannis, V. ; Karsten, M. ; Steinmetz, Ralf (2001):
A price communication protocol for a multi-service internet.
In: Informatik 2001: Wirtschaft und Wissenschaft in der Network Economy; Visionen und Wirklichkeit; Tagungsbd. der Tagung Wien, Sept. 2001. Hrsg.: K. Bauknecht. - Wien: Österr. Computer-Ges., 2001, Wien, Österr. Computer-Ges., [Conference or Workshop Item]

Heckmann, Oliver ; Schmitt, Jens (2001):
A taxonomy for multi-period resource allocation problems at syste m edges (MPRASE taxonomy).
TR-KOM, Darmstadt, Techn. Univ., [Book]

Heckmann, Oliver ; Rohmer, F. ; Schmitt, J. (2001):
The token bucket allocation and reallocation problems (MPRASE token bucket).
TR-KOM, Darmstadt, Techn. Univ., [Book]