2nd International IEEE Conference on Communication System Software and Middleware

Research Article

On the Effects of Cooperation in DTNs

  • @INPROCEEDINGS{10.1109/COMSWA.2007.382571,
        author={Antonis Panagakis and Athanasios Vaios and loannis Stavrakakis},
        title={On the Effects of Cooperation in DTNs},
        proceedings={2nd International IEEE Conference on Communication System Software and Middleware},
        keywords={cooperation  delay tolerant networks  routing},
  • Antonis Panagakis
    Athanasios Vaios
    loannis Stavrakakis
    Year: 2007
    On the Effects of Cooperation in DTNs
    DOI: 10.1109/COMSWA.2007.382571
Antonis Panagakis1,*, Athanasios Vaios1,*, loannis Stavrakakis1,*
  • 1: Department of Informatics & Telecommunications National & Kapodistrian University of Athens Panepistimiopolis, Ilissia, 157-84, Athens, Greece
*Contact email: apan@di.uoa.gr, avaios@di.uoa.gr, ioannis@di.uoa.gr


In a delay tolerant network (DTN) the nodes may behave autonomously deciding on their own whether to implement or not the rules of a routing algorithm. In this paper, the effects of node cooperation (or lack of it) are explored for three well-known routing algorithms proposed for DTNs with respect to the message delivery delay and the transmission overhead incurred until message delivery or the termination of the message spreading process. The results show that the sensitivity of the algorithms to the cooperation degree can be high, to the point of making them inferior to algorithms they typically outperform under a fully cooperative environment. Finally, it is demonstrated how a simple mechanism that incorporates the cooperation degree can help improve effectiveness.