Ad-hoc InfoWare

Middleware Services for Information Sharing in Ad-hoc Networks


Short project description

Ad-hoc networking has been recognized as an important research area, and there are basically two types of technological developments that have enabled ad-hoc ne tworks: first, end-user devices, like PDAs, are small and light enough to carry them around and use them whenever and wherever it suits, and second, wireless ne twork interfaces are available (and affordable) for these types of devices. While most research on ad-hoc networks so far has aimed at routing mechanisms and service location, this project focuses on: content management, including automatic ad-hoc integration of multimedia content from different sources, seamless integration of content distribution infrastructures with ad-hoc networks, efficient and fault-tolerance management and control mechanisms, and protection of resources and data with appropriate security mechanisms. It is the goal of this project, to develop a set of services for information access and sharing in ad-hoc networks. These services are located on top of the (ad-hoc) network layer and below the applications and are therefore regarded as middleware services. These middleware services shall basically provide information and network integration.

The project is funded by the Research Council of Norway and the Faculty of Mathematics and Natural Sciences at the University of Oslo.

Project leaders

Dr. Thomas Plageman
+47-22852743, plageman (at)

Dr. Vera Goebel
+47-22852402, goebel (at)

Dr. Ellen Munthe-Kaas
ellenmk (at)

Research fellows

Norun C. Sanderson
+47-22852740, noruns (at)

Norun is looking into aspects of managing the information and knowledge that is to be shared in the MANET. Focusing on metadata management, the approach is to use a semantic linked multi-tiered distributed data dictionary with ontology based dynamic update.
Matija Puzar
+47-22852787, matija (at)

Matija is looking into security problems present in emergency and rescue scenarios. Another issue is integration of security services with the other middleware components.

Ovidiu Valentin Drugan
ovidiu (at)

Ovidiu Valentin Drugan is currently researching in middleware with resource availability prediction for ad-hoc networks. His interests include: ad-hoc networks, resource management for mobile and pervasive mobile computing, multi-agent systems and mobile agents, data replication and synchronization in distributed and mobile systems.

Katrine Stemland Skjelsvik
+47-22852773, katrins (at)

Katrine is looking into how to design a distributed event notification service (DENS) for MANETs.  An overlay of DENS brokers is used to match subscriptions and notifications, and to efficiently disseminate the notifications also in the presence of frequent network partitions.

Guest researcher

Anna Lekova-Kovacheva
alekova (at)


Using Continuous Queries for Event Filtering and Routing in Sparse Manets
Katrine Stemland Skjelsvik, Vera Goebel, Thomas Plagemann, FTDCS 07,Arizona,March,2007
Developing Mobile Middleware - An Analysis of Rescue and Emergency Operations
Norun Christine Sanderson, Katrine Stemland Skjelsvik, Ovidiu Valentin Drugan, Matija Puzar, Vera Goebel, Ellen Munthe-Kaas, Thomas Plagemann,Research Report #358, ISBN 82-7368-316-8, ISSN 0806-3036,June,2007
Non-intrusive Neighbor Prediction in Sparse MANETs
Ovidiu Valentin Drugan, Thomas Plagemann, Ellen Munthe-Kaas, The Fourth Annual IEEE Comunications Society Conference on Sensor, Mesh and Ad Hoc Commuincations and Networks (SECON 2007), San Diego, USA,June,2007
Fuzzy Logic-Based Event Notification in Sparse MANETs
Anna Lekova, Katrine Stemland Skjelsvik, Thomas Plagemann, Vera Goebel, AINA 2007,Niagara Falls, May 2007.,May,2007
Predicting Time Intervals for Resource Availability in MANETs
Drugan, O. V., Plagemann, T., Munthe-Kaas, E., The IEEE International Workshop on Ad Hoc and Ubiquitous Computing (AHUC2006), Taichung, Taiwan,June,2006
Ontology Based Dynamic Updates in Sparse Mobile Ad-hoc Networks for Rescue Scenarios
Sanderson, N., Goebel, V., Munthe-Kaas, E., International Workshop on Managing Context Information and Semantics in Mobile Environments (MCIME 2006),In conjunction with: 7th int. conf. on Mobile Data Management (MDM), Nara, Japan,May,2006
Resource aware middleware services over MANET
Drugan, O. V., Plagemann, T., Munthe-Kaas, E., 2nd IEEE Infocom Student Workshop 2006 held in conjunction with The 25th Conference on Computer Communications (INFOCOM 2006), Barcelona, Spain,April,2006
A Configurable Event Notification Service for MANETs
Skjelsvik, K.S., Goebel, V., Plagemann, T., 3rd MiNEMA Workshop, Leuven, Belgium,Feburary,2006
Supporting Multiple Subscription Languages by a Single Event Notification Overlay in Sparse MANETs
Skjelsvik, K.S., Lekova, A., Goebel, V., Munthe.-Kaas, E., Plagemann, T. Sanderson, N., Proceeding of the ACM MobiDE 2006 Workshop,June,2006
Mobile middleware for rescue and emergency scenarios, in Mobile Middleware
Munthe-Kaas, E., Drugan, O., Goebel, V., Plagemann, T., Puzar, M., Sanderson, N., and Skjelsvik, K.S., , Paolo Bellavista and Antonio Corradi (ed.), CRC Press, 2006 (to appear).
Metadata Management for Ad-Hoc InfoWare - A Rescue and Emergency Use Case for Mobile Ad-Hoc Scenarios
Norun Sanderson, Vera Goebel, Ellen Munthe-Kaas, International Conference on Ontologies, Databases and Applications of Semantics (ODBASE05), Cyprus, November 2005.
In R. Meersman and Z.Tari (Eds.): CoopIS/DOA/ODBASE 2005, LNCS 3761, pp.1365-1380, 2005. (to appear)
Evaluation of Distributed Event Notification Protocols for Highly Unstable Manets,
Katrine Stemland Skjelsvik, Vera Goebel, Thomas Plagemann
Technical Report #328, University of Oslo, Department of Informatics, September, 2005
NEMAN: A Network Emulator for Mobile Ad-Hoc Networks
Matija Puzar, Thomas Plagemann, 8th International Conference on Telecommunications (ConTEL 2005), Zagreb, Croatia, June, 2005
Technical Report #321, University of Oslo, Department of Informatics, March, 2005
SKiMPy: A Simple Key Management Protocol for MANETs in Emergency and Rescue Operations
Matija Puzar, Jon Andersson, Thomas Plagemann, Yves Roudier, 2nd European Workshop on Security and Privacy in Ad hoc and Sensor Networks (ESAS 2005), Visegrad, Hungary, July, 2005
Technical Report #319, University of Oslo, Department of Informatics, Feburary, 2005
Building resource aware middleware services over MANET for rescue and emergency applications
Ovidiu Valentin Drugan, Thomas Peter Plagemann, Ellen Munthe-Kaas, The 16th Annual IEEE International Symposium on Personal Indoor and Mobile Radio Communications, International Congress Center (ICC), Berlin, Germany, September, 2005
On the Importance of Composability of Ad Hoc Mobile Middleware and Trust Management
Ovidiu Valentin Drugan, Ioanna Dionysiou, Dave E. Bakken, Thomas Plagemann, Deborah Frincke and Carl Hauser, The 2nd International Service Availability Symposium, Berlin, Germany, April, 2005
Knowledge Management in Mobile Ad-hoc Networks for Rescue Scenarios
Norun Sanderson, Vera Goebel and Ellen Munthe-Kaas, Workshop on Semantic Web Technology for Mobile and Ubiquitous Applications, ISWC 2004, November, 2004
A Highly Available Distributed Event Notification Service for Mobile Ad-hoc Networks
Katrine Stemsland Skjelsvik, Vera Goebel, Thomas Plagemann, ACM/IFIP/USENIX 5th International Middleware Conference (Middleware 2004), October, 2004
Middleware Services for Information Sharing in Mobile Ad-hoc Networks - Challenges and Approach,
Plagemann, T., Andersson, J., Drugan, O., Goebel, V., Griwodz, C., Halvorsen, P., Munthe-Kaas, E., Puzar, M., Sanderson, N., Skjelsvik, K.S., 
IFIP Workshop on Challenges of Mobility (WCC 2004), August 2004
Evaluation of middleware for distributed objects on handheld devices
Kristensen, T., Preben S. Arnesen, L., Valen, E., Plagemann, T.,
International Workshop on Multimedia Interactive Protocols and Systems 2003, MIPS 2003,Napoli, Italy,November,2003
Towards Middleware Services for Ad-Hoc Network Applications
Thomas Plagemann, Vera Goebel, Carsten Griwodz, Pål Halvorsen, 9th IEEE Workshop on Future Trends of Distributed Computing Systems, San Juan, Puerto Rico, pp. 249-257, May, 2003




1. Ad-Hoc InfoWare Workshop, Oslo, Norway, December 2003
Participants: DMMS, Unik, Thales

2. Ad-Hoc InfoWare Workshop, Oslo, Norway, May 2004
Participants: DMMS, Thales,

3. Ad-Hoc InfoWare Workshop, Oslo, Norway, May 2005
Partiticipants: DMMS, Thales, HiO, Eurecom