Target Tracking with QoS Support in Large Wireless Sensor Networks
Ghasem Naddafzadeh SHIRAZI, Peijie WANG, Xiangxu DONG, Chen Khong THAM
DOI: 10.4236/wsn.2009.15046   PDF    HTML     4,643 Downloads   9,031 Views   Citations


Quality of Service (QoS) is important in the application of target tracking in wireless sensor networks (WSNs). When a target appears, it will trigger an event from one or more sensors. A target can only be accurately detected if a certain number of event packets are received by the sink in a predetermined detection time interval. In this paper, we propose a buffer management scheme based on event ordering to achieve QoS. We also propose a directional QoS-aware routing protocol (DQRP) for the dissemination of the event ordering list. After the dissemination, a priority queue buffer management scheme is used to ensure QoS. Our buffer management scheme works in conjunction with DQRP to ensure accurate as well as energy-efficient target detection in the presence of multiple targets. The novelty of our network architecture is that a distributed admission control scheme is implemented on each node based on a geographic routing algorithm. In our scenario, a target can only be accurately detected if a certain number of event packets are received by the sink in a predetermined detection time interval. Our main performance metric is the number of targets/events being detected. Our protocol maximizes the number of targets being detected.

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SHIRAZI, G. , WANG, P. , DONG, X. and THAM, C. (2009) Target Tracking with QoS Support in Large Wireless Sensor Networks. Wireless Sensor Network, 1, 370-382. doi: 10.4236/wsn.2009.15046.

Conflicts of Interest

The authors declare no conflicts of interest.


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