My research interests include the following areas:
- Distributed systems >
- Dependability and security
- Intermittently connected networks
- Real-time systems
My research has been focused on design and analysis of
partition-tolerant distributed systems. During the first part of my
graduate studies I was involved in a European FP6 research project
called Dependable Distributed Systems (DeDiSys). The project included
7 other nodes and the outcome was a partition-tolerant middleware.
The second part of my dissertation is focused towards mobile
intermittently connected networks. The application scenario for such
networks is that of disaster area communication. The ability to
communicate during and after such events is central for the success of
the relief efforts. However, due the lack of infrastructure and other
resources, setting up working systems for communication can be
difficult and time consuming. Node mobility in large geographic areas
will result in intermittent connectivity, thus requiring protocols to
be partition-tolerant as well as energy efficient.
As part of this project we developed an energy-efficient
partition-tolerant manycast algorithm, which has been evaluated using
simulations and implemented as a proof-of-concept on real
devices. Finally, the thesis also contains a theoretical analysis on
the worst-case latency for intermittently connected networks. The
novelty of this work is that it provides a new way of characterising
Here are the projects that I have been involved in:
- Ny Teknik link
- TV4 Linköping (Local TV news), link
- Metro Teknik link
- Ingenjören link
Some of my publications include simuluations or measurements on
algorithm performance. Therefore, I intend to provide the source code
for those experiments here.
- The code for the simulations of the reconciliation algorithms
published at SAC2006 can be found here.
- The code for the simulations of the continuous service protocol
published at DSN2007 can be found here.
- The CORBA implementation of the DeDiSys is available on
- The ns-3 simulation code for Random walk gossip published at
SRDS09 is available on request.