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Journal Article P2P Ranging‐Based Cooperative Localization Method for a Cluster of Mobile Nodes Containing IR‐UWB PHY
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Authors
Seong Yun Cho, Joo Young Kim, Munkhzul Enkhtur
Issue Date
2013-12
Citation
ETRI Journal, v.35, no.6, pp.1084-1093
ISSN
1225-6463
Publisher
한국전자통신연구원 (ETRI)
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.4218/etrij.13.0112.0823
Abstract
The problem of pedestrian localization using mobile nodes containing impulse radio ultra wideband (IR-UWB) is considered. IEEE 802.15.4a-based IR-UWB can achieve accurate ranging. However, the coverage is as short as 30 m, owing to the restricted transmit power. This factor may cause a poor geometric relationship among the mobile nodes and anchor nodes in certain environments. To localize a group of pedestrians accurately, an enhanced cooperative localization method is proposed. We describe a sequential algorithm and define problems that may occur in the implementation of the algorithm. To solve these problems, a batch algorithm is proposed. The batch algorithm can be carried out after performing the sequential algorithm to linearize the nonlinear range equation. When a sequential algorithm cannot be performed due to a poor geometric relationship among nodes, a batch algorithm can be carried out directly. Herein, Monte Carlo simulations are presented to illustrate the proposed method and verify its performance. © 2013 ETRI.
KSP Keywords
Cooperative Localization, IEEE 802.15.4a, Impulse Radio Ultra-Wideband(IR-UWB), Mobile node(MN), Monte-Carlo simulation(MCS), Pedestrian localization, Range equation, Sequential algorithm, Transmit Power, Ultra wide band(UWB), anchor nodes