Indoor positioning with wireless technologies: Measurement methods, artificial intelligence, and applications
Abstract
Context—Global navigation satellite system signals are strongly attenuated indoors, where multipath, non-line-of-sight propagation, device heterogeneity, and changing occupancy limit outdoor positioning methods. The diversity of indoor technologies and inconsistent accuracy metrics also complicate direct, application-oriented comparison.
Objective—This structured narrative review connects measurement observables, estimation algorithms, protocol capabilities, validation design, artificial intelligence, governance, and life-cycle requirements to an auditable technology-selection decision.
Method—IEEE Xplore, the ACM Digital Library, ScienceDirect, SpringerLink, Web of Science, and Scopus were searched together with official ISO/IEC, IEEE, Bluetooth SIG, 3GPP, ETSI, CEPT, and national regulatory documents. The search was updated on 22 July 2026. The final evidence map comprised 103 unique sources prioritized as recent reviews, standards and official technical documents, and representative experiments.
Results—Received signal strength, channel state information, time-of-flight, round-trip time, time-difference-of-arrival, and angle measurements support proximity, geometric estimation, fingerprinting, and sensor fusion. Performance depends on hardware, anchor geometry, calibration, line-of-sight ratio, and test design. Wi-Fi and Bluetooth commonly provide environment-dependent meter-level positioning or robust room/zone awareness, whereas ultra-wideband can reach centimeter-to-decimeter accuracy in favorable deployments. Visible-light, acoustic, geomagnetic, artificial-magnetic, and device-free systems add complementary capabilities but also introduce visibility, reverberation, map-maintenance, privacy, or hardware constraints. Learning-based methods can improve nonlinear mapping and NLOS mitigation, but packet-random or same-session validation may overstate generalizability.
Conclusion—No technology is universally superior. Selection should use output type, error percentiles, coverage, latency, update rate, device model, environment, maintenance, cybersecurity, privacy, and life-cycle cost, followed by a context-matched site pilot. Hybrid systems are preferable when continuity and reliability are more important than isolated laboratory accuracy.
Keywords
- Artificial intelligence
- Fingerprint-based positioning
- Indoor positioning
- Ultra-wideband
- Wireless positioning
Supporting Institution
Ethical Statement
References
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Details
Primary Language
English
Subjects
Electronics, Sensors and Digital Hardware (Other)
Journal Section
Review
Authors
Murat Ekici
*
0000-0002-8875-0775
Türkiye
Early Pub Date
September 13, 2026
Publication Date
-
Submission Date
July 23, 2026
Acceptance Date
August 31, 2026
Published in Issue
Year 2026 Number: Advanced Online Publication