Mobile Peer-to-Peer

Research Project initiated and financed by

Mobile P2P rulez the world
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MoPi Project Team

Kurt Tutschku (Contact)
Phuoc Tran-Gia (University of Würzburg)
Frank-Uwe Andersen (Contact)
+ Cornelia Kappler, SIEMENS AG
Hermann deMeer
(University of Passau)


Peer-to-Peer (P2P) file-sharing has become the killer application in the Internet with respect to traffic and popularity which is even surpassing web usage. This makes P2P file-sharing commercially attractive to network operators interested in increased traffic. In parallel, the demand for wireless services has caused wireless networks to grow enormously. We assume that P2P file-sharing will be mapped onto mobile environments by its users. This results in a mobile P2P file-sharing service.

In this project, we examined the feasibility of the eDonkey file-sharing service in GPRS and UMTS networks and detected problems of the interaction between P2P and infrastructure-based mobile networks. We developed an architecture overcoming the restrictions of today's existing P2P concepts and mobile networks. Additional infrastructure elements have been introduced which are operator friendly and permit the network operators to regulate the service while preserving the user friendly P2P characteristics. The performance capabilities of the architecture were evaluated by extensive analytical and simulative studies.


MopiPhant compact .NET emule client released on 04.04.05
by Daniel Schlosser

Conference Articles

1.Tobias Hofeld, Andreas Mder, Kurt Tutschku, Frank-Uwe Andersen
Time-Discrete Analysis of the Crawling Strategy in an Optimized Mobile P2P Architecture.
EuroNGI Workshop on , Loveno di Menaggio, Como, Italy, 2006.
[PDF (239 kB)] [Bibtex]
2.Tobias Hofeld, Andreas Mder, Kurt Tutschku, Phuoc Tran-Gia, Frank-Uwe Andersen, Hermann de Meer, Ivan Dedinski
Comparison of Crawling Strategies for an Optimized Mobile P2P Architecture.
19th International Teletraffic Congress (ITC19), Beijing, China, September 2005.
[PDF (248 kB)] [Bibtex]
3.Tobias Hofeld, Kurt Tutschku, Frank-Uwe Andersen, Hermann de Meer, Jens Oberender
Simulative Performance Evaluation of a Mobile Peer-to-Peer File-Sharing System.
Next Generation Internet Networks NGI2005, Rome, Italy, April 2005.
[PDF (331 kB)] [Bibtex]
4.Tobias Hofeld, Kurt Tutschku, Daniel Schlosser
Influence of the Size of Swapping Entities in Mobile P2P File-Sharing Networks.
Peer-to-Peer-Systeme und -Anwendungen, GI/ITG-Workshop in Kooperation mit KiVS 2005, Kaiserslautern, March 2005.
[PDF (80 kB)] [Bibtex]
5.Tobias Hofeld, Kurt Tutschku, Frank-Uwe Andersen
Mapping of File-Sharing onto Mobile Environments: Enhancement by UMTS.
Mobile Peer-to-Peer Computing MP2P, in conjunction with the 3rd IEEE International Conference on Pervasive Computing and Communications (PerCom'05), Kauai Island, Hawaii, March 2005.
[PDF (440 kB)] [Bibtex]
6.Tobias Hofeld, Kurt Tutschku, Frank-Uwe Andersen
Mapping of File-Sharing onto Mobile Environments: Feasibility and Performance of eDonkey with GPRS.
WCNC 2005, New Orleans, LA USA, March 2005.
[PDF (373 kB)] [Bibtex]
7.Jens Oberender, Frank-Uwe Andersen, Hermann de Meer, Ivan Dedinski, Tobias Hofeld, Cornelia Kappler, Andreas Mder, Kurt Tutschku
Enabling Mobile Peer-to-Peer Networking.
Mobile and Wireless Systems, LNCS 3427, Dagstuhl, Germany, January 2005.
[PDF (347 kB)] [Bibtex]
8.Frank-Uwe Andersen, Hermann de Meer, Ivan Dedinski, Cornelia Kappler, Andreas Mder, Jens Oberender, Kurt Tutschku
An Architecture Concept for Mobile P2P File Sharing Services.
Workshop at Informatik 2004 - Algorithms and Protocols for Efficient Peer-to-Peer Applications, Ulm, September 2004.
[PDF (312 kB)] [Bibtex]