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However, the cost of deploying such a system is large, mainly due to the need for manually measuring the exact location of the installed infrastructure devices (\u201canchor nodes\u201d). Self-calibration of UWB reduces deployment costs, because it allows for automatic updating of the coordinates of fixed nodes when they are installed or moved. Additionally, installation costs can also be reduced by using collaborative localization approaches where mobile nodes act as anchors. This article surveys the most significant research that has been done on self-calibration and collaborative localization. First, we find that often these terms are improperly used, leading to confusion for the readers. Furthermore, we find that in most of the cases, UWB-specific characteristics are not exploited, so crucial opportunities to improve performance are lost. Our classification and analysis provide the basis for further research on self-calibration and collaborative localization in the deployment of UWB indoor localization systems. Finally, we identify several research tracks that are open for investigation and can lead to better performance, e.g., machine learning and optimized physical settings.<\/jats:p>","DOI":"10.1145\/3448303","type":"journal-article","created":{"date-parts":[[2021,5,4]],"date-time":"2021-05-04T03:42:46Z","timestamp":1620099766000},"page":"1-27","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":105,"title":["Self-calibration and Collaborative Localization for UWB Positioning Systems"],"prefix":"10.1145","volume":"54","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6857-2019","authenticated-orcid":false,"given":"Matteo","family":"Ridolfi","sequence":"first","affiliation":[{"name":"IDLab, Department of Information Technology, Ghent University--imec, Ghent, Belgium"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Abdil","family":"Kaya","sequence":"additional","affiliation":[{"name":"IDLab, Faculty of Applied Engineering, University of Antwerp--imec, Antwerp, Belgium"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0064-5020","authenticated-orcid":false,"given":"Rafael","family":"Berkvens","sequence":"additional","affiliation":[{"name":"IDLab, Faculty of Applied Engineering, University of Antwerp--imec, Antwerp, Belgium"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maarten","family":"Weyn","sequence":"additional","affiliation":[{"name":"IDLab, Faculty of Applied Engineering, University of Antwerp--imec, Antwerp, Belgium"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wout","family":"Joseph","sequence":"additional","affiliation":[{"name":"WAVES, Ghent University--imec, Ghent, Belgium"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eli De","family":"Poorter","sequence":"additional","affiliation":[{"name":"IDLab, Department of Information Technology, Ghent University--imec, Ghent, Belgium"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2021,5,3]]},"reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"publisher","DOI":"10.3390\/s16050707"},{"key":"e_1_2_1_2_1","unstructured":"UWB Alliance. 2020. 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