Mobility-Assisted Node Localization Based on TOA Measurements Without Time Synchronization in Wireless Sensor Networks

被引：71

作者：

Chen, Hongyang ^{[1
]}

Liu, Bin ^{[2
]}

Huang, Pei ^{[3
]}

Liang, Junli ^{[4
]}

Gu, Yu ^{[5
]}

机构：

[1] Univ Tokyo, Inst Ind Sci, Tokyo, Japan

[2] Univ So Calif, Dept Comp Sci, Los Angeles, CA 90089 USA

[3] Michigan State Univ, Dept Comp Sci & Engn, E Lansing, MI 48824 USA

[4] Xian Univ Technol, Sch Automat & Informat Engn, Xian, Peoples R China

[5] Natl Inst Informat, Informat Syst Architecture Sci Res Div, Tokyo, Japan

来源：

MOBILE NETWORKS & APPLICATIONS | 2012年 / 17卷 / 01期

关键词：

TOA; geometrical location; wireless sensor networks;

D O I：

10.1007/s11036-010-0281-3

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

Wireless sensor networks (WSNs) have been proposed for a multitude of location-dependent applications. To stamp the collected data and facilitate communication protocols, it is necessary to identify the location of each sensor. In this paper, we discuss the performance of two novel positioning schemes, which use two generalized geometrical localization algorithms to achieve an accurate estimation based on time-of-arrival (TOA) measurements without time synchronization. In order to improve the network performance and address the limitations of static WSNs on position estimation, a mobile anchor is utilized effectively and two attractive movement strategies for mobile anchor are designed accordingly. The effectiveness of our approaches is validated and compared with the traditional Trilateration method by extensive simulations.

引用

页码：90 / 99

页数：10

共 37 条

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