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Enabling E2E reliable communications with adaptive re-encoding over delay tolerant networks

Tran Thai, Tuan and Chaganti, Vasanta G. and Lochin, Emmanuel and Lacan, Jérôme and Dubois, Emmanuel and Gelard, Patrick Enabling E2E reliable communications with adaptive re-encoding over delay tolerant networks. (2015) In: IEEE International Conference on Communications (ICC), 8 June 2015 - 12 June 2015 (London, United Kingdom).

(Document in English)

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Official URL: http://dx.doi.org/10.1109/ICC.2015.7248441


Reliable end-to-end (E2E) communication in Delay Tolerant Network (DTN) is a challenging task due to long delay and frequent link disruptions. To enable reliability, the IETF is currently looking at strategies to integrate erasure coding mechanisms inside DTN architecture. The objective is to extend the ability of the existing DTN bundle fragmentation mechanism to support cases where bundles have a high probability of being lost. To date, discussions agree that an intermediate node can re-encode bundles, leaving all decoding process at the destination node in order to let intermediate node operations be as simple as possible. We propose to study and analyze possible re-encoding strategies at intermediate nodes using an on-the-fly coding paradigm. We also investigate how re-encoding and acknowledgment strategies based on this coding scheme would enable reliable E2E communication. Finally, we propose an adaptive mechanism with low complexity that deals with both re-routing events and network dynamics which are common in the context of DTN. Simulation results show that re-encoding at the relay and the adaptive mechanism allows a significant reduction in terms of network overhead injected by erasure codes while ensuring the E2E reliability.

Item Type:Conference or Workshop Item (Paper)
Additional Information:ISBN 978-1-4673-6432-4/15
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National d'Études Spatiales - CNES (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Other partners > University of Massachusetts Amherst - UMASS AMHERST (USA)
Other partners > Laboratoire de recherche en télécommunications spatiales et aéronautiques - TéSA (FRANCE)
Laboratory name:
Deposited On:02 Sep 2015 15:08

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