Erasure-coding based data delivery in delay tolerant networks

We consider the data delivery problem in delay tolerant networks, where a data content is located in a fixed source need to be delivered to a specific destination. We assume nodes have limited storage and computational capabilities. In this paper, we initially, explore the data delivery problem, for both unbiased and biased contact models. Based on our observations, we propose a data delivery scheme that can reduce both storage overhead and delivery delay. Our scheme combines erasure coding technique and the framework of simulated annealing optimization, in order to maximize the content delivery probability to the destination. © 2013 Springer-Verlag