A New Lower Bound on Range-Free Localization Algorithms in Wireless Sensor Networks

Author

Chan, Yiu Wing Edwin ; Soong, Boon Hee

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore

Volume

15

Issue

1

fYear

2011

fDate

1/1/2011 12:00:00 AM

Firstpage

16

Lastpage

18

Abstract

This letter examines the lower bound on localization error, which is an important performance measure for localization algorithms. Unlike some previous works based on the circular coverage model, we consider a more realistic scenario where radio propagation is subject to log-normal shadow fading. In this letter, we present an analytical expression for the distribution of lower bound on localization error for any range-free localization algorithm in WSNs. Finally, the derivation is validated through simulations.

Keywords

log normal distribution; radiowave propagation; wireless sensor networks; localization error; log-normal shadow fading; radio propagation; range-free localization algorithms; wireless sensor networks; Analytical models; Conferences; Correlation; Fading; Mathematical model; Measurement uncertainty; Wireless sensor networks; Localization; correlation; lower bound; shadowing; wireless sensor networks;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2010.110310.101772

Filename

5634161