Node wake-up scheduling mechanism for delay tolerant networks

Abstract

In the delay tolerant networks (DTNs), nodes often be in the long disconnected state. Therefore, how to design an effective node wake-up scheduling pattern and keep the existing network connectivity is an important issue. In this paper, a delay tolerant networks wake-up scheduling policy is proposed, referred as WSP. The policy studies the relationship of wake-up scheduling key parameters. Moreover, WSP controls the wake-up period intervals to ensure the effective data throughput of node. The simulation results show that our policy can reduce the power consumption of node under the premise of effective data delivery ratio. In addition, WSP has good adaptability with delay tolerant networks. © 2011 Springer-Verlag Berlin Heidelberg.