tailieunhanh - Báo cáo hóa học: "Research Article Dynamic Object Tracking Tree in Wireless Sensor Network"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Dynamic Object Tracking Tree in Wireless Sensor Network | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2010 Article ID 386319 8 pages doi 2010 386319 Research Article Dynamic Object Tracking Tree in Wireless Sensor Network Min-Xiou Chen 1 Che-Chen Hu 2 and Wen-Yen Weng2 1 Department of Computer Science and Information Engineering National DongHwa University 974 Hualien Taiwan 2 Department of Computer Science and Information Engineering ChungHua University 300Hsinchu Taiwan Correspondence should be addressed to Min-Xiou Chen mxchen@ Received 30 October 2009 Accepted 30 March 2010 Academic Editor Xinbing Wang Copyright 2010 Min-Xiou Chen et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Recent advances in embedded microsensing technologies and low-energy cost sensors have made wireless sensor networks possible. Object tracking is an important research of wireless sensor networks. However most object tracking tree is constructed based on a predefined mobility profile. When the real object movement behaviors are very different to the predefined mobility profile the object tracking tree performance will become worse. In the paper we will propose a dynamic adaptation mechanism referred to as Message-Tree Adaptive MTA procedure to improve the object tracking tree when the predefined mobility profiles do not match. From the simulation results the performance of the object tracking tree can be significantly improved when the MTA procedure is performed. 1. Introduction Recent advances in embedded micro-sensing technologies and low energy cost sensors the sensors are smaller cheaper and more intelligent. These sensors are equipped with RF communication module and make the killer application for object tracking in wireless sensor network possible. These wireless sensors have the ability to .