Proceedings of the 10th international conference on Architectural support for programming languages and operating systems
A delay-tolerant network architecture for challenged internets
Proceedings of the 2003 conference on Applications, technologies, architectures, and protocols for computer communications
Probabilistic routing in intermittently connected networks
ACM SIGMOBILE Mobile Computing and Communications Review
DTP: Double-Pairwise Time Protocol for Disruption Tolerant Networks
ICDCS '08 Proceedings of the 2008 The 28th International Conference on Distributed Computing Systems
The ONE simulator for DTN protocol evaluation
Proceedings of the 2nd International Conference on Simulation Tools and Techniques
The Deep Impact Network Experiment Operations Center Monitor and Control System
SMC-IT '09 Proceedings of the Third IEEE International Conference on Space Mission Challenges for Information Technology
DTN routing in urban public transport systems
Proceedings of the 5th ACM workshop on Challenged networks
HYDRA: virtualized distributed testbed for DTN simulations
Proceedings of the fifth ACM international workshop on Wireless network testbeds, experimental evaluation and characterization
| Hi-index | 0.00 |
A delay tolerant network (DTN) deals with the issue of frequently interrupted connections and relaxes the need for a continuous end-to-end relation between nodes. The Bundle Protocol is the typical way to set-up a DTN, but requires a common time in the whole network. Further, globally synchronized timestamps are required by many mechanisms like cryptography protocols or global event ordering. Since standard time synchronization approaches from classical networking do not work in DTNs, we introduce a novel algorithm to distribute a time reference in such networks. Our approach rates the quality of the local time with respect to the accuracy of the local clock. We show that this simple and self-aligning algorithm can provide an adequate accuracy depending on the inter-contact times between the nodes.