Research Article
Energy-efficient Tracking of Mobile Objects with Early Distance-based Reporting
@INPROCEEDINGS{10.1109/MOBIQ.2007.4450984, author={Tobias Farrell and Ralph Lange and Kurt Rothermel}, title={Energy-efficient Tracking of Mobile Objects with Early Distance-based Reporting}, proceedings={4th International ICST Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services}, publisher={IEEE}, proceedings_a={MOBIQUITOUS}, year={2008}, month={2}, keywords={Asset management Communication system control Energy consumption Energy efficiency Global Positioning System Protocols Robustness Runtime Wireless communication Wireless sensor networks}, doi={10.1109/MOBIQ.2007.4450984} }- Tobias Farrell
Ralph Lange
Kurt Rothermel
Year: 2008
Energy-efficient Tracking of Mobile Objects with Early Distance-based Reporting
MOBIQUITOUS
IEEE
DOI: 10.1109/MOBIQ.2007.4450984
Abstract
Many location-based systems rely on fine-grained tracking of mobile objects that determine their own locations with sensing devices like GPS receivers. For these objects, energy is a very valuable and limited resource. A distance-based reporting protocol can be employed to reduce the energy they consume by sending position updates. However, the energy required for position sensing has not been considered in the past. In this paper, we study how the resulting energy consumption from both sensing and update operations can be reduced for distance- based reporting. We show that significant savings are achieved by sending position updates earlier than actually required. For uniform movement, we derive the minimal power consumption analytically. Subsequently, two novel online heuristics are proposed that control the sending of position updates at runtime. Their effectiveness is validated by extensive simulations.
