Localization in Wireless Sensor Networks with Range Measurement Errors

被引：19

作者：

Kuruoglu, Gulnur Selda ^{[1
]}

Erol, Melike ^{[1
]}

Oktug, Serna ^{[1
]}

机构：

[1] Istanbul Tech Univ, Elekt Elekt Fak, Istanbul, Turkey

来源：

AICT: 2009 FIFTH ADVANCED INTERNATIONAL CONFERENCE ON TELECOMMUNICATIONS | 2009年

关键词：

Localization; sensor networks; multi-lateration; noisy measurements;

D O I：

10.1109/AICT.2009.51

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

In sensor networks, data collected by sensor nodes needs to be tagged with time and location information. Localization techniques are used to determine the location information by estimating location of a sensor node. It is well known that distance measurement errors affect the accuracy of estimated location. These errors may be due to methodical or environmental factors. In this paper, we propose AML (Adapted Multi-Lateration) by improving the existing multi-lateration technique. It is shown that the AML method is more robust to measurement errors; its mean localization error is lower than the multi-lateration technique for noisy measurements. Besides, the time complexity of the AML method is less than the multi-lateration technique since it does not require to solve the normal equation for the linear least squares problem as in the multi-lateration technique. Additionally, AML is advantageous for iterative localization where localized nodes become reference nodes and employed in the localization process. Incorporating these reference nodes in the AML equations is easier than multi-lateration technique.

引用

页码：261 / 266

页数：6

共 10 条

[1] Recursive position estimation in sensor networks [J].

Albowicz, J ;

Chen, A ;

Zhang, LX .

NETWORK PROTOCOLS, 2001, :35-41

[2]

[Anonymous], MOBICOM

[3]

[Anonymous], P 34 ANN HAW INT C S

[4] GPS-less low-cost outdoor localization for very small devices [J].

Bulusu, N ;

Heidemann, J ;

Estrin, D .

IEEE PERSONAL COMMUNICATIONS, 2000, 7 (05) :28-34

[5]

Caruso A, 2005, IEEE INFOCOM SER, P150

[6]

Chandrasekhar V., 2006, PROC 1 ACM INT WORK, P33

[7]

He T, 2003, P ANN INT C MOB COMP, P81

[8]

Karl H, 2005, PROTOCOLS AND ARCHITECTURES FOR WIRELESS SENSOR NETWORKS, P1, DOI 10.1002/0470095121

[9]

Savarese C, 2002, USENIX ASSOCIATION PROCEEDINGS OF THE GENERAL TRACK, P317

[10]

SAVVIDES A, 2002, WSNA 02 P 1 ACM INT, P112

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