Multi-Sensor Scheduling for Reliable Target Tracking in Wireless Sensor Networks
- 1 June 2006
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 996-1000
- https://doi.org/10.1109/itst.2006.288721
Abstract
Due to uncertainties of target and limited sensing range and possible miss detection of sensor, single sensor based collaborative target tracking, as addressed in existing literature, suffers from the low tracking accuracy and unreliability problem when a scheduled sensor fails to detect the target. In this paper, a multi-sensor scheduling scheme for collaborative target tracking in WSNs is proposed where at each time step, a number of sensors are selected based on a specified detection probability. These tasking sensors form a temporary tracking group with one of them being the leader to carry out fusion estimation of target using measurements from the tasking sensors. The leader is also responsible for tasking sensor selection for the next time step. Due to the difficulties in calculating the joint detection probability of multiple sensors, a Monte Carlo method is adopted for calculating the detection probability. An incremental sensor selection heuristic is proposed to select tasking sensors to meet the specified detection probability requirement. Simulation results show that, compared to a single sensor scheduling approach, the proposed approach can significantly improve the tracking accuracy and the reliabilityKeywords
This publication has 4 references indexed in Scilit:
- A Distributed Coverage- and Connectivity-Centric Technique for Selecting Active Nodes in Wireless Sensor NetworksIEEE Transactions on Computers, 2005
- Collaborative signal and information processing: An information-directed approachProceedings of the IEEE, 2003
- Scalable Information-Driven Sensor Querying and Routing for Ad Hoc Heterogeneous Sensor NetworksThe International Journal of High Performance Computing Applications, 2002
- Estimation with Applications to Tracking and NavigationPublished by Wiley ,2002