Probabilistic routing in intermittently connected networks
ACM SIGMOBILE Mobile Computing and Communications Review
Hierarchical power management in disruption tolerant networks with traffic-aware optimization
Proceedings of the 2006 SIGCOMM workshop on Challenged networks
Performance evaluation of a power management scheme for disruption tolerant network
Mobile Networks and Applications
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Disruption tolerant networks (DTNs) is a research area aiming at developing network communication when connectivity is intermittent and prone to disruptions. DTNs have many applications in remote and hazardous areas where they need to operate over long time periods under energy constraints. Therefore, efficient energy conservation schemes are necessary to prolong network lifetime. This paper presents a multi-radio energy conservation scheme for DTNs which combines concepts of on-demand and asynchronous schemes by using a low-power radio (LPR) interface to search for neighbors and a high-power radio (HPR) interface that is woken on-demand to exchange data. Our results show that the multi-radio approach can achieve almost the same data delivery ratio as with a single radio with half the power consumption.