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Pinpointing a WiFi-enabled device in 3D using Multipoint Triangulation

Katakama, VSBV, Jones, K, Burrell, H, Robinson, C, McColl, S and Chandler-Crnigoj, S (2023) Pinpointing a WiFi-enabled device in 3D using Multipoint Triangulation. In: International Conference on Intelligent Systems and New Applications (ICISNA'23) Proceedings Book . (International Conference on Intelligent Systems and New Applications (ICISNA'23), 28-30 April 2023, Liverpool, UK).

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WiFi has emerged as one of the essential technologies to provide location-based services indoors owing to the rapid proliferation of wireless access points in metropolitan areas and the rising use of smartphones. WiFi-based positioning appears to be a potential option because it does not need a complicated local infrastructure, in addition, user devices (such as mobile phones) can already analyse WiFi signals, and WiFi signals are widespread and powerful. This work proposes using triangulation of angle measurements from WiFi routers based on router access points. The proposed algorithm has little estimation noise and enables for the measurement of angle-of-arrival and angle-of-departure. Multipath propagation can be calculated using the MUSIC technique. The generalised algorithm is not too complicated. Simple triangulation algorithm output measures Time of Arrival (ToA) and Time of Flight (ToF), and considers the signal strength of all the access points hence increases the access points required. Hence, we use Multipath Triangulation to build the first decimeter-level WiFi localization system, which utilises a single access point and a single channel, and does not impose any overhead, data sharing, or complex coordination protocols. The results obtained indicate that Multipath Triangulation provides the capacity to improve localisation by using multipath reflections rather than discarding them. Furthermore, we use decimeter-level localization because it is possible to overcome the negative consequences of multipath interference

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > T Technology (General)
H Social Sciences > HV Social pathology. Social and public welfare. Criminology > HV697 Protection, assistance and relief
Divisions: Engineering
Pharmacy & Biomolecular Sciences
Publisher: ICISNA
SWORD Depositor: A Symplectic
Date Deposited: 14 Aug 2023 13:20
Last Modified: 14 Aug 2023 13:20
URI: https://researchonline.ljmu.ac.uk/id/eprint/19436
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