An investigation of different Wi-Fi signal behaviours and their effects on indoor positioning accuracy

İlçi, Veli; Gülal, Engin; Alkan, Reha Metin

An investigation of different Wi-Fi signal behaviours and their effects on indoor positioning accuracy

dc.authorid	0000-0002-9485-874X
dc.authorid	0000-0002-1981-9783
dc.contributor.author	İlçi, Veli
dc.contributor.author	Gülal, Engin
dc.contributor.author	Alkan, Reha Metin
dc.date.accessioned	2019-03-15T07:29:06Z
dc.date.available	2019-03-15T07:29:06Z
dc.date.issued	2018
dc.department	Hitit Üniversitesi, Teknik Bilimler Meslek Yüksekokulu, Mimarlık ve Şehir Planlama Bölümü
dc.description.abstract	In recent years, in addition to 2.4 GHz Wi-Fi signals, 5 GHz signals have been introduced making it possible to transmit data at both IEEE 802.11n and 802.11ac standards. Therefore, researchers have increasingly focused on developing indoor positioning applications based on Wi-Fi dual band. This study was conducted in two stages. In the first stage, we investigated the behaviours of 2.4 and 5 GHz Wi-Fi signals by collecting received signal strength (RSS) values from access points and determined the relationship between RSS and distance for each signal frequency using a curve fitting technique. Furthermore, we comparatively analysed signal fluctuations and their effects on positioning accuracy. In the second part of the study, we compared the positioning accuracy of four algorithms; namely, bilateration, trilateration, weighted iterative nonlinear least square and extended Kalman filter using 2.4 and 5 GHz Wi-Fi signals. The experimental results revealed that the 5 GHz signals were more stable and had better positioning accuracy than the 2.4 GHz signals. Concerning the positioning algorithms, bilateration had the best positioning accuracy at both frequencies.
dc.description.provenance	Submitted by Veli İlçi (veliilci@hitit.edu.tr) on 2019-03-15T07:24:44Z No. of bitstreams: 2 veliilci2.pdf: 1960217 bytes, checksum: de98594ed317feb19df8bf1176c0e261 (MD5) license_rdf: 810 bytes, checksum: 73abee61e377f73f1d5fc0522cf9cde0 (MD5)	en
dc.description.provenance	Approved for entry into archive by Zeynep Umut Arslan (umutarslan@hitit.edu.tr) on 2019-03-15T07:29:06Z (GMT) No. of bitstreams: 2 veliilci2.pdf: 1960217 bytes, checksum: de98594ed317feb19df8bf1176c0e261 (MD5) license_rdf: 810 bytes, checksum: 73abee61e377f73f1d5fc0522cf9cde0 (MD5)	en
dc.description.provenance	Made available in DSpace on 2019-03-15T07:29:06Z (GMT). No. of bitstreams: 2 veliilci2.pdf: 1960217 bytes, checksum: de98594ed317feb19df8bf1176c0e261 (MD5) license_rdf: 810 bytes, checksum: 73abee61e377f73f1d5fc0522cf9cde0 (MD5) Previous issue date: 2018	en
dc.identifier.citation	İlçi, V., Gülal, E., Alkan, R. M. (2018). An investigation of different Wi-Fi signal behaviours and their effects on indoor positioning accuracy. Survey Review, 50(362), 404-411.
dc.identifier.doi	10.1080/00396265.2017.1292672
dc.identifier.endpage	411	en_US
dc.identifier.issn	0039-6265
dc.identifier.issn	1752-2706
dc.identifier.issue	362	en_US
dc.identifier.scopusquality	Q2
dc.identifier.startpage	404	en_US
dc.identifier.uri	https://hdl.handle.net/11491/155
dc.identifier.uri	https://doi.org/10.1080/00396265.2017.1292672
dc.identifier.volume	50	en_US
dc.identifier.wosquality	N/A
dc.indekslendigikaynak	Web of Science
dc.indekslendigikaynak	Scopus
dc.indekslendigikaynak	TR-Dizin
dc.language.iso	en
dc.publisher	Taylor and Francis Ltd
dc.relation.ispartof	Survey Review
dc.relation.publicationcategory	Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Wi-Fi	en_US
dc.subject	2.4 Ghz	en_US
dc.subject	5 Ghz	en_US
dc.subject	Bilateration	en_US
dc.subject	Trilateration	en_US
dc.subject	Weighted Iterative Nonlinear Least Square	en_US
dc.subject	Extended Kalman Filter	en_US
dc.subject	Indoor Positioning	en_US
dc.title	An investigation of different Wi-Fi signal behaviours and their effects on indoor positioning accuracy
dc.type	Article