Mobility

Sidewinder: A Predictive Data Forwarding Protocol for Mobile Wireless Sensor Networks

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Executive Summary

In-situ data collection for mobile wireless sensor network deployments has received little study, such as in the case of floating sensor networks for storm surge and innundation monitoring. The paper demonstrates through quantitative study that traditional approaches to routing in mobile environments do not work well due to volatile topology changes. Consequently, one proposes Sidewinder, a predictive data forwarding protocol for mobile wireless sensor networks. Like a heat-seeking missile, data packets are guided towards a sink node with increasing accuracy as packets approach the sink. Different from conventional sensor network routing protocols, Sidewinder continuously predicts the current sink location based on distributed knowledge of sink mobility among nodes in a multi-hop routing process.

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