한국공간정보학회 논문지
Current Result Document :
| 한글제목(Korean Title) |
Weighted Centroid Localization Algorithm Based on Mobile Anchor Node |
| 영문제목(English Title) |
Weighted Centroid Localization Algorithm Based on Mobile Anchor Node |
| 저자(Author) |
Junling Ma
Junghyun Lee
Keewook Rim
Seungjin Han
|
| 원문수록처(Citation) |
VOL 11 NO. 02 PP. 0001 ~ 0006 (2009. 06) |
한글내용
(Korean Abstract) |
|
영문내용
(English Abstract) |
Localization of nodes is a key technology for application of wireless sensor network. Having a GPS receiver on every sensor node is costly. In the past, several approaches, including range-based and range-free, have been proposed to calculate positions for randomly deployed sensor nodes.
Most of them use some special nodes, called anchor nodes, which are assumed to know their own locations. Other sensors compute their locations based on the information provided by these anchor nodes. This paper uses a single mobile anchor node to move in the sensing field and
broadcast its current position periodically.
We provide a weighted centroid localization algorithm that uses coefficients, which are decided by the influence of mobile anchor node to unknown nodes, to prompt localization accuracy. We also suggest a criterion which is used to select mobile anchor node which involve in computing the position of nodes for im proving localization accuracy.
Weighted centroid localization algorithm is simple, and no communication is needed while locating. The localization accuracy of weighted centroid localization algorithm is better than maximum likelihood estim ation which is used very often. It can be applied to many applications. |
| 키워드(Keyword) |
Wireless Sensor Networks
Localization
Mobile Anchor Node
Centroid
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| 파일첨부 |
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