Technology of Network & Communication
|
1174-1177

WLAN heterogeneous terminal location method based on DBSCAN-GRNN-LSSVR algorithm

Zhang Yong
Fan Heng
Wang Yujie
School of Computer & Information, Hefei University of Technology, Hefei 230009, China

Abstract

Aiming at the excessive location error caused by heterogeneous terminal(fingerprint database terminal and test terminal) in WLAN indoor localization system, this paper proposed a solution based on DBSCAN-GRNN-LSSVR algorithm. This paper employed the least square support vector regression(LSSVR) algorithm to build the mapping relationship model between the received signal strength(RSS) of fingerprint database terminal and physical coordinate locations. It obtained the scatter plot through listing the RSS values collected by the fingerprint database terminal and the test terminal at the calibration point. It eliminated the boundary points and noise points by density-based spatial clustering. It used generalized regression neural network(GRNN) to construct the heterogeneous terminal mapping function of the RSS. It used the LSSVR model to determine the location of the test point. The experiment proves, compared with LSSVR algorithm, using the proposed DBSCAN-GRNN-LSSVR algorithm to calibrate the heterogeneous terminal, test terminal positioning accuracy increases by 18%~40%, which effectively solves the problem of excessive localization deviation caused by heterogeneous terminals.

Foundation Support

国家科技支撑计划资助项目(2013BAH52F01)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2017.10.1007
Publish at: Application Research of Computers Printed Article, Vol. 36, 2019 No. 4
Section: Technology of Network & Communication
Pages: 1174-1177
Serial Number: 1001-3695(2019)04-047-1174-04

Publish History

[2019-04-05] Printed Article

Cite This Article

张勇, 范恒, 王昱洁. 基于DBSCAN-GRNN-LSSVR算法的WLAN异构终端定位方法 [J]. 计算机应用研究, 2019, 36 (4): 1174-1177. (Zhang Yong, Fan Heng, Wang Yujie. WLAN heterogeneous terminal location method based on DBSCAN-GRNN-LSSVR algorithm [J]. Application Research of Computers, 2019, 36 (4): 1174-1177. )

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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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