{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,28]],"date-time":"2026-06-28T06:15:57Z","timestamp":1782627357101,"version":"3.54.5"},"reference-count":31,"publisher":"World Scientific Pub Co Pte Ltd","issue":"04","funder":[{"name":"National key research and development plan","award":["2017YFC0804401"],"award-info":[{"award-number":["2017YFC0804401"]}]},{"name":"Jiangsu Post-Doctoral Fund","award":["3628"],"award-info":[{"award-number":["3628"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Patt. Recogn. Artif. Intell."],"published-print":{"date-parts":[[2020,4]]},"abstract":"<jats:p>With the rapid development of smart devices and WiFi networks, WiFi-based indoor localization is becoming increasingly important in location-based services. Among various localization techniques, the fingerprint-based method has attracted much interest due to its high accuracy and low equipment requirement. Traditional fingerprint-based indoor localization systems mostly obtain positioning by measuring the received signal strength indicator (RSSI). However, the RSSI is affected by environmental influences, thereby limiting the precision of positioning. Therefore, we propose a new indoor fingerprint localization system based on channel state information (CSI). We adopt a novel method, in which the amplitude and phase of the CSI are fused to generate fingerprints in the training phase and apply a weighted [Formula: see text]-nearest neighbor (KNN) algorithm for fingerprint matching during the estimation phase. The system is validated in an exhibition hall and laboratory and we also compare the results of the proposed system with those of two CSI-based and an RSSI-based fingerprint localization systems. The results show that the proposed system achieves a minimum mean distance error of 0.85[Formula: see text]m in the exhibition hall and 1.28[Formula: see text]m in the laboratory, outperforming the other systems.<\/jats:p>","DOI":"10.1142\/s0218001420580033","type":"journal-article","created":{"date-parts":[[2019,6,4]],"date-time":"2019-06-04T08:14:01Z","timestamp":1559636041000},"page":"2058003","source":"Crossref","is-referenced-by-count":3,"title":["WiCLoc: A Novel CSI-based Fingerprint Localization System"],"prefix":"10.1142","volume":"34","author":[{"given":"Lei","family":"Zhang","sequence":"first","affiliation":[{"name":"School of Information and Electrical Engineering, Xuzhou University of Technology, Xuzhou 221000, P.\u00a0R. China"},{"name":"IoT Perception Mine Research Center, China University of Mining and Technology, Xuzhou 221000, P.\u00a0R. China"},{"name":"National and Local Joint Engineering Laboratory of Internet, Application Technology on Coal Mine, Xuzhou, Jiangsu 221008, P.\u00a0R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yanjun","family":"Hu","sequence":"additional","affiliation":[{"name":"School of Information and Electrical Engineering, Xuzhou University of Technology, Xuzhou 221000, P.\u00a0R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yafeng","family":"Liu","sequence":"additional","affiliation":[{"name":"IoT Perception Mine Research Center, China University of Mining and Technology, Xuzhou 221000, P.\u00a0R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiaxiang","family":"Li","sequence":"additional","affiliation":[{"name":"School of Information and Electrical Engineering, Xuzhou University of Technology, Xuzhou 221000, P.\u00a0R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2397-8664","authenticated-orcid":false,"given":"Enjie","family":"Ding","sequence":"additional","affiliation":[{"name":"IoT Perception Mine Research Center, China University of Mining and Technology, Xuzhou 221000, P.\u00a0R. China"},{"name":"National and Local Joint Engineering Laboratory of Internet, Application Technology on Coal Mine, Xuzhou, Jiangsu 221008, P.\u00a0R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"219","published-online":{"date-parts":[[2019,8,9]]},"reference":[{"key":"S0218001420580033BIB002","doi-asserted-by":"publisher","DOI":"10.1109\/WCNC.2013.6555311"},{"key":"S0218001420580033BIB003","doi-asserted-by":"publisher","DOI":"10.1109\/TLA.2018.8327388"},{"key":"S0218001420580033BIB004","first-page":"236","volume-title":"Proc. IEEE Infocom.","author":"Bahl P.","year":"2000"},{"key":"S0218001420580033BIB005","doi-asserted-by":"publisher","DOI":"10.1109\/LCN.2014.6925773"},{"key":"S0218001420580033BIB006","doi-asserted-by":"publisher","DOI":"10.1109\/TEVC.2016.2564158"},{"key":"S0218001420580033BIB007","first-page":"1","volume":"2018","author":"Ding E.","year":"2018","journal-title":"J. Sensors"},{"key":"S0218001420580033BIB008","doi-asserted-by":"publisher","DOI":"10.1145\/1851182.1851203"},{"key":"S0218001420580033BIB009","doi-asserted-by":"publisher","DOI":"10.1145\/1925861.1925870"},{"key":"S0218001420580033BIB010","doi-asserted-by":"publisher","DOI":"10.3390\/s17010147"},{"key":"S0218001420580033BIB011","doi-asserted-by":"publisher","DOI":"10.1109\/26.996067"},{"key":"S0218001420580033BIB012","doi-asserted-by":"publisher","DOI":"10.1016\/j.ins.2018.02.056"},{"key":"S0218001420580033BIB013","doi-asserted-by":"publisher","DOI":"10.1109\/TIFS.2012.2206385"},{"key":"S0218001420580033BIB014","first-page":"129","volume-title":"Int. Conf. Mobile Computing and Networking","volume":"19","author":"Lu F.","year":"2015"},{"key":"S0218001420580033BIB015","doi-asserted-by":"publisher","DOI":"10.1109\/ISEMANTIC.2016.7873831"},{"key":"S0218001420580033BIB017","doi-asserted-by":"publisher","DOI":"10.1145\/2162081.2162099"},{"key":"S0218001420580033BIB018","doi-asserted-by":"crossref","first-page":"413","DOI":"10.1145\/1999995.2000062","volume-title":"Int. Conf. Mobile Systems, Applications, and Services","author":"Sen S.","year":"2011"},{"key":"S0218001420580033BIB019","doi-asserted-by":"publisher","DOI":"10.1364\/OE.25.016235"},{"key":"S0218001420580033BIB020","doi-asserted-by":"publisher","DOI":"10.1016\/j.patrec.2018.01.020"},{"key":"S0218001420580033BIB021","first-page":"1","volume-title":"Int. Conf. Electrical Engineering and Information Communication Technology","author":"Sultana S.","year":"2017"},{"key":"S0218001420580033BIB022","doi-asserted-by":"publisher","DOI":"10.1109\/LWC.2016.2567394"},{"key":"S0218001420580033BIB023","doi-asserted-by":"publisher","DOI":"10.1017\/CBO9780511807213"},{"key":"S0218001420580033BIB024","doi-asserted-by":"publisher","DOI":"10.1109\/TSP.2016.2539139"},{"key":"S0218001420580033BIB025","doi-asserted-by":"publisher","DOI":"10.1109\/LCOMM.2017.2725274"},{"key":"S0218001420580033BIB026","doi-asserted-by":"publisher","DOI":"10.5194\/jsss-6-247-2017"},{"issue":"5","key":"S0218001420580033BIB027","first-page":"2210","volume":"131","author":"Wu K.","year":"2012","journal-title":"Proc. \u2014 IEEE Infocom"},{"key":"S0218001420580033BIB028","doi-asserted-by":"publisher","DOI":"10.1109\/TSMC.2017.2679725"},{"key":"S0218001420580033BIB030","doi-asserted-by":"publisher","DOI":"10.1109\/ICCCN.2012.6289200"},{"key":"S0218001420580033BIB031","doi-asserted-by":"publisher","DOI":"10.1109\/ICDCS.2013.49"},{"key":"S0218001420580033BIB032","doi-asserted-by":"publisher","DOI":"10.1145\/2543581.2543592"},{"key":"S0218001420580033BIB033","doi-asserted-by":"publisher","DOI":"10.1007\/s10586-017-1072-4"},{"key":"S0218001420580033BIB034","doi-asserted-by":"publisher","DOI":"10.1109\/TNNLS.2017.2673241"}],"container-title":["International Journal of Pattern Recognition and Artificial Intelligence"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.worldscientific.com\/doi\/pdf\/10.1142\/S0218001420580033","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,12,17]],"date-time":"2020-12-17T00:01:53Z","timestamp":1608163313000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.worldscientific.com\/doi\/abs\/10.1142\/S0218001420580033"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,8,9]]},"references-count":31,"journal-issue":{"issue":"04","published-print":{"date-parts":[[2020,4]]}},"alternative-id":["10.1142\/S0218001420580033"],"URL":"https:\/\/doi.org\/10.1142\/s0218001420580033","relation":{},"ISSN":["0218-0014","1793-6381"],"issn-type":[{"value":"0218-0014","type":"print"},{"value":"1793-6381","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,8,9]]}}}