Cooperative Group Localization Based on Factor Graph for Next-Generation Networks
Joint Authors
Tao, Xiaofeng
Zhang, Xuefei
Shi, Yulong
Cui, Qimei
Source
International Journal of Distributed Sensor Networks
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-10-10
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Telecommunications Engineering
Information Technology and Computer Science
Abstract EN
In ill-conditioned communication environment, multiple target localization is of important practical significance.
The cooperative group localization (CGL) model was firstly put forward, which has verified the effectiveness of localization performance gain and simultaneous multiple target localization in ill conditions.
However, there exist two inherent difficulties: the strict demand for CGL topology and the high complexity.
By the rational use of information to relax restrictions on topology and by dividing the complex problem into some simple local ones, the factor graph (FG) together with the sum-product algorithm is a perfect candidate for the problems above.
In order to solve the two problems, we propose the weighted FG-based CGL (WFG-CGL) algorithm which incorporates the optimal weights based on the information reliability.
In order to further reduce the complexity, we propose the low-complexity FG-based CGL (LCFG-CGL) algorithm.
The Cramer-Rao lower bound (CRLB) of the localization error in CGL is first derived.
Theoretical analysis and numerical results indicate that the proposed algorithms not only perform better in relaxing CGL topology requirement, but also enjoy high localization accuracy under low complexity in comparison with the existing CGL algorithm.
American Psychological Association (APA)
Zhang, Xuefei& Cui, Qimei& Shi, Yulong& Tao, Xiaofeng. 2012. Cooperative Group Localization Based on Factor Graph for Next-Generation Networks. International Journal of Distributed Sensor Networks،Vol. 2012, no. 2012, pp.1-15.
https://search.emarefa.net/detail/BIM-472324
Modern Language Association (MLA)
Zhang, Xuefei…[et al.]. Cooperative Group Localization Based on Factor Graph for Next-Generation Networks. International Journal of Distributed Sensor Networks No. 2012 (2012), pp.1-15.
https://search.emarefa.net/detail/BIM-472324
American Medical Association (AMA)
Zhang, Xuefei& Cui, Qimei& Shi, Yulong& Tao, Xiaofeng. Cooperative Group Localization Based on Factor Graph for Next-Generation Networks. International Journal of Distributed Sensor Networks. 2012. Vol. 2012, no. 2012, pp.1-15.
https://search.emarefa.net/detail/BIM-472324
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-472324