A Hybrid Cluster-Based Target Tracking Protocol for Wireless Sensor Networks

Author:

Wang Zhibo1,Lou Wei23,Wang Zhi1,Ma Junchao3,Chen Honglong4

Affiliation:

1. State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310027, China

2. Shenzhen Research Institute, The Hong Kong Polytechnic University, Shenzhen 518057, China

3. Department of Computing, the Hong Kong Polytechnic University, Hong Kong

4. College of Information and Control Engineering, China University of Petroleum, Qingdao 266580, China

Abstract

Target tracking is a typical and important application of wireless sensor networks (WSNs). In consideration of the network scalability and energy efficiency for target tracking in large-scale WSNs, it has been employed as an effective solution by organizing the WSNs into clusters. However, tracking a moving target in cluster-based WSNs suffers a boundary problem when the target moves across or along the boundaries of clusters, as the static cluster membership prevents sensors in different clusters from sharing information. In this paper, we propose a novel mobility management protocol, called hybrid cluster-based target tracking (HCTT), which integrates on-demand dynamic clustering into a cluster-based WSN for target tracking. By constructing on-demand dynamic clusters at boundary regions, nodes from different static clusters that detect the target can temporarily share information, and the tracking task can be handed over smoothly from one static cluster to another. As the target moves, static clusters and on-demand dynamic clusters alternately manage the target tracking task. Simulation results show that the proposed protocol performs better in tracking the moving target when compared with other typical target tracking protocols.

Funder

National Natural Science Foundation of China

Publisher

SAGE Publications

Subject

Computer Networks and Communications,General Engineering

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