Overlay solution for multimedia data over sparse MANETs

Authors:
Sergio Cabrero;Xabiel G. Pañeda;Thomas Plagemann;Vera Goebel;Matti Siekkinen
Affiliations:
University of Oviedo, Gijón/Xixón, Spain;University of Oviedo, Gijón/Xixón, Spain;University of Oslo, Oslo, Norway;University of Oslo, Oslo, Norway;Helsinki University of Technology, Finland
Venue:
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
Year:
2009

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Abstract

Using Mobile Ad-hoc Networks (MANETs) for audio and video transmission is very promising for application domains such as emergency and rescue. However, audio/video streaming services are not designed for such dynamic and unstable networks. The problems are even more important in so-called sparse MANETs where the node density is relatively low so that disconnections and network partitions are common. We have designed an architecture that combines MANET routing with caching and delay tolerant store-carry-forward operations in an overlay network to improve the quality of audio/video transmission over sparse MANETs. We have implemented a prototype to evaluate the architecture. The results from the experiments demonstrate that our system clearly outperforms simple client-server solutions when the network has temporal disconnections.