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Research on Node Localization for Heterogeneous Wireless Sensor Networks

Author: LiYue
Tutor: Hu
School: Taiyuan University of Technology
Course: Detection Technology and Automation
Keywords: Heterogeneous wireless sensor networks Heterogeneous node positioning method Heterogeneous centroid algorithm Heterogeneous APIT algorithm The heterogeneous distance of algorithm
CLC: TP212.9
Type: Master's thesis
Year: 2011
Downloads: 132
Quote: 2
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Abstract


Wireless sensor network integrated sensor technology, distributed information processing technology, embedded computing technology, modern networking and wireless communications technologies, the research focus of today's domestic and international concern. The problem of node localization is an important issue in the wireless sensor network research. Only know the location of the sensor nodes, to the events reported by the sensor data analysis and processing, and on this basis to further optimize the network. Heterogeneous wireless sensor networks by a variety of different types of nodes in the network, at home and abroad research focuses on the node deployment, routing protocols, topology control, and security mechanisms of heterogeneous wireless sensor networks, its node localization The problem of specialized research in the literature is still very rare. Wireless sensor network node localization only for the similar node, does not take the maximum communication radius different between different types of nodes with the node positioning mechanism with node, and therefore can not be directly applied to heterogeneous wireless sensor networks. For heterogeneous wireless sensor network node positioning in-depth study of a heterogeneous node positioning method, and this method to improve the existing typical node localization algorithm to make it applicable to heterogeneous wireless sensor networks to reach improve the effect of node localization algorithm performance. Firstly, on the basis of the analysis of wireless sensor network node positioning problem with typical node localization algorithm summarized heterogeneous wireless sensor networks heterogeneity of node localization including node localization and node localization mechanism and node maximum communication radius of three elements; subsequently described a heterogeneous wireless sensor network node positioning model, a heterogeneous node localization method is proposed and designed for this model, the method taking into account the position of an unknown node similar anchor nodes with similar anchor node has full use of the anchor node resources, cost savings, improve positioning accuracy, promotional advantages; Then, the method is applied to a typical node localization algorithm designed heterogeneous centroid algorithm, different the configuration the APIT algorithms and heterogeneous distance algorithm; Finally, using MATLAB software to build simulation platform, these types of algorithm simulation experiments. The experimental results show that the improved algorithm after each heterogeneous nodes positioning method as compared with the corresponding original positioning algorithm, the heterogeneous wireless sensor networks with more adaptable.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation components,parts > Transmitter ( converter),the sensor > Sensor applications
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