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Conference Paper: Footprints elicit the truth: Improving global positioning accuracy via local mobility

TitleFootprints elicit the truth: Improving global positioning accuracy via local mobility
Authors
Issue Date2013
Citation
Proceedings - IEEE INFOCOM, 2013, p. 490-494 How to Cite?
AbstractGlobal Positioning System (GPS) has enabled a number of geographical applications over many years. Quite a lot of location-based services, however, still suffer from considerable positioning errors of GPS (usually 1m to 20m in practice). In this study, we design and implement a high-accuracy global positioning solution based on GPS and human mobility captured by mobile phones. Our key observation is that smartphone-enabled dead reckoning supports accurate but local coordinates of users' trajectories, while GPS provides global but inconsistent coordinates. Considering them simultaneously, we devise techniques to refine the global positioning results by fitting the global positions to the structure of locally measured ones, so the refined positioning results are more likely to elicit the ground truth. We develop a prototype system, named GloCal, and conduct comprehensive experiments in both crowded urban and spacious suburban areas. The evaluation results show that GloCal can achieve 30% improvement on average error with respect to GPS. © 2013 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/303407
ISSN
2023 SCImago Journal Rankings: 2.865
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWu, Chenshu-
dc.contributor.authorYang, Zheng-
dc.contributor.authorZhao, Yiyang-
dc.contributor.authorLiu, Yunhao-
dc.date.accessioned2021-09-15T08:25:14Z-
dc.date.available2021-09-15T08:25:14Z-
dc.date.issued2013-
dc.identifier.citationProceedings - IEEE INFOCOM, 2013, p. 490-494-
dc.identifier.issn0743-166X-
dc.identifier.urihttp://hdl.handle.net/10722/303407-
dc.description.abstractGlobal Positioning System (GPS) has enabled a number of geographical applications over many years. Quite a lot of location-based services, however, still suffer from considerable positioning errors of GPS (usually 1m to 20m in practice). In this study, we design and implement a high-accuracy global positioning solution based on GPS and human mobility captured by mobile phones. Our key observation is that smartphone-enabled dead reckoning supports accurate but local coordinates of users' trajectories, while GPS provides global but inconsistent coordinates. Considering them simultaneously, we devise techniques to refine the global positioning results by fitting the global positions to the structure of locally measured ones, so the refined positioning results are more likely to elicit the ground truth. We develop a prototype system, named GloCal, and conduct comprehensive experiments in both crowded urban and spacious suburban areas. The evaluation results show that GloCal can achieve 30% improvement on average error with respect to GPS. © 2013 IEEE.-
dc.languageeng-
dc.relation.ispartofProceedings - IEEE INFOCOM-
dc.titleFootprints elicit the truth: Improving global positioning accuracy via local mobility-
dc.typeConference_Paper-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1109/INFCOM.2013.6566821-
dc.identifier.scopuseid_2-s2.0-84883058536-
dc.identifier.spage490-
dc.identifier.epage494-
dc.identifier.isiWOS:000326335200106-

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