Smart Antenna Assisted WSN Node Self Locating Algorithm

doi:10.13190/j.jbupt.2014.02.007

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2014, Vol. 37 ›› Issue (2): 28-31.doi: 10.13190/j.jbupt.2014.02.007

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Smart Antenna Assisted WSN Node Self Locating Algorithm

ZHANG Xi-dong^1,2, ZHANG Ping¹, KANG Gui-xia¹, LIU Yun-cheng³, WU Hao³

1. Key Laboratory of Universal Wireless Communications(Beijing University of Posts and Telecommunications), Ministry of Education, Beijing 100876, China;
2. Institute of Army Aviation, Beijing 101123, China;
3. Information Center of PLA General Logistics Department, Beijing 100086, China

Received:2013-01-04 Online:2014-04-28 Published:2014-04-08

Abstract

Abstract:

Under the circumstances that wireless sensor network (WSN) nodes are deployed in a vast region and the node density is low, the existing node location algorithms are not optimum selections. A WSN node self-locating algorithm which utilized the directivity of smart antenna is proposed. There are two types of nodes in the objective network of the means. The first type is central node that equipped with global position system (GPS) unit and smart antenna. The second type is normal node that equipped with high frequency crystal oscillator. Normal node can support time of arrival (TOA) based ranging. With the help of directional locating signal sent by central node,a normal node can estimate the angle and distance between itself and the central node, and determine its position combining the angle and TOA based ranging result. Analysis and experimental results show that the proposed algorithm can provide fine location accuracy with relative low cost and low complexity.

Key words: ubiquitous network, wireless sensor network, self-locating, smart antenna

CLC Number:

TN929. 53

ZHANG Xi-dong, ZHANG Ping, KANG Gui-xia, LIU Yun-cheng, WU Hao. Smart Antenna Assisted WSN Node Self Locating Algorithm[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2014, 37(2): 28-31.

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Smart Antenna Assisted WSN Node Self Locating Algorithm

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