@article{SisLab4506, month = {February}, title = {Smartphone Indoor Positioning Based on Enhanced BLE Beacon Multi-lateration}, author = {Ngoc Son Duong and Thi Thai Mai Dinh}, publisher = {Institute of Advanced Engineering and Science}, year = {2021}, pages = {53--64}, journal = {TELKOMNIKA Telecommunication, Computing, Electronics and Control}, url = {https://eprints.uet.vnu.edu.vn/eprints/id/eprint/4506/}, abstract = {In this paper, we introduce a smartphone indoor positioning method using Bluetooth Low Energy (BLE) beacon multilateration. At first, based on signal strength analysis, we construct a distance calculation model for BLE beacons. Then, with the aims to improve positioning accuracy, we propose an improved Lateral method (Range-based method) which is applied for 4 nearby beacons. The method is intended to design a real-time system for some services such as emergency assistance, personal localization and tracking, location-based advertising and marketing, etc. Experimental results show that the proposed method achieves high accuracy when compared with the state of the art lateral methods such as geometry-based (conventional trilateration), Least Square Estimation-based (LSE-based) and weighted LSE-based.} }