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A Distributed Localization Scheme for Wireless Sensor Networks with Improved Grid-Scan and Vector-Based Refinement
September 2008 (vol. 7 no. 9)
pp. 1110-1123
ASCII Text
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Jang-Ping Sheu, Pei-Chun Chen, Chih-Shun Hsu, "A Distributed Localization Scheme for Wireless Sensor Networks with Improved Grid-Scan and Vector-Based Refinement," IEEE Transactions on Mobile Computing, vol. 7, no. 9, pp. 1110-1123, September, 2008.
 
 
BibTex
x
 
@article{ 10.1109/TMC.2008.35,
author = {Jang-Ping Sheu and Pei-Chun Chen and Chih-Shun Hsu},
title = {A Distributed Localization Scheme for Wireless Sensor Networks with Improved Grid-Scan and Vector-Based Refinement},
journal ={IEEE Transactions on Mobile Computing},
volume = {7},
number = {9},
issn = {1536-1233},
year = {2008},
pages = {1110-1123},
doi = {http://doi.ieeecomputersociety.org/10.1109/TMC.2008.35},
publisher = {IEEE Computer Society},
address = {Los Alamitos, CA, USA},
}
 
 
RefWorks Procite/RefMan/Endnote
x 
 
TY - JOUR
JO - IEEE Transactions on Mobile Computing
TI - A Distributed Localization Scheme for Wireless Sensor Networks with Improved Grid-Scan and Vector-Based Refinement
IS - 9
SN - 1536-1233
SP1110
EP1123
EPD - 1110-1123
A1 - Jang-Ping Sheu,
A1 - Pei-Chun Chen,
A1 - Chih-Shun Hsu,
PY - 2008
KW - Sensor networks
KW - Wireless sensor networks
VL - 7
JA - IEEE Transactions on Mobile Computing
ER -
 
Localization is a fundamental and essential issue for wireless sensor networks (WSNs). Existing localization algorithms can be categorized as either range-based or range-free schemes. Range-based schemes are not suitable for WSNs because of their irregularity of radio propagation and their cost of additional devices. In contrast, range-free schemes do not need to use received signal strength to estimate distances and only need simple and cheap hardware, and are thus more suitable for WSNs. However, existing range-free schemes are too costly and not accurate enough or are not scalable. To improve previous work, we present a fully distributed range-free localization scheme for WSNs. We assume that only a few sensor nodes, called anchors, know their locations, and the remaining (normal) nodes need to estimate their own locations by gathering nearby neighboring information. We propose an improved grid-scan algorithm to find the estimated locations of the normal nodes. Furthermore, we derive a vector-based refinement scheme to improve the accuracy of the estimated locations. Analysis, simulation, and experiment results show that our scheme outperforms the other range-free schemes even when the communication radius is irregular.

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Index Terms:
Sensor networks, Wireless sensor networks
Citation:
Jang-Ping Sheu, Pei-Chun Chen, Chih-Shun Hsu, "A Distributed Localization Scheme for Wireless Sensor Networks with Improved Grid-Scan and Vector-Based Refinement," IEEE Transactions on Mobile Computing, vol. 7, no. 9, pp. 1110-1123, Sept. 2008, doi:10.1109/TMC.2008.35
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