Technology of Network & Communication
|
206-209,219

Improved DV-Hop algorithm based on hop correction and LM optimization

Gao Qingyuan
Xu Zengchun
Hu Ping
School of Computer Science & Technology, Nanjing Tech University, Nanjing 211816, China

Abstract

In sensor network topology environment with uneven node distribution, running the DV-Hop localization algorithm often caused large errors of hop value. Considering the problem above, this paper proposed an improved localization algorithm named ILDV-Hop. Firstly, for the whole network, this algorithm calculated an effective hop size based on difference of actual and estimated distance between reference nodes. Then, with adding a correction value to the hops between unknown nodes and reference nodes, it also used the received signal strength indicator(RSSI) value to correct the distance of a single hop. Finally, the Levenberg-Marquardt algorithm was applied to estimate an optimize position for each sensor. Simulation results indicate that, compare with the DV-Hop algorithm and the DV-Hop algorithm based on Quasi-Newton, the ILDV-Hop algorithm has reduced the errors by about 23% and 10% respectively, and the localization performance has increased visibly.

Foundation Support

江苏省重点研发计划(社会发展)资助项目(BE2015697)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2017.07.0664
Publish at: Application Research of Computers Printed Article, Vol. 36, 2019 No. 1
Section: Technology of Network & Communication
Pages: 206-209,219
Serial Number: 1001-3695(2019)01-047-0206-04

Publish History

[2019-01-05] Printed Article

Cite This Article

高清源, 徐曾春, 胡平. 基于跳数修正与LM优化的DV-Hop改进算法 [J]. 计算机应用研究, 2019, 36 (1): 206-209,219. (Gao Qingyuan, Xu Zengchun, Hu Ping. Improved DV-Hop algorithm based on hop correction and LM optimization [J]. Application Research of Computers, 2019, 36 (1): 206-209,219. )

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  • Application Research of Computers Monthly Journal
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Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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