L. Terças, C. M. De Lima, J. Saloranta and M. Latva-Aho, "Hierarchical Bayesian-based Indoor Positioning Using Distributed Antenna Systems," 2021 17th International Symposium on Wireless Communication Systems (ISWCS), 2021, pp. 1-6, doi: 10.1109/ISWCS49558.2021.9562201
Hierarchical Bayesian-based indoor positioning using distributed antenna systems
|Author:||Terças, Leonardo1; de Lima, Carlos Morais1; Saloranta, Jani1;|
1Centre for Wireless Communications (CWC), University of Oulu, Finland
|Online Access:||PDF Full Text (PDF, 0.4 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2021120959948
Institute of Electrical and Electronics Engineers,
|Publish Date:|| 2021-12-09
This work proposes and evaluates hierarchical Bayesian-based localization methods to estimate the position of a target node in indoor deployment scenarios. The measurements are acquired through a distributed antenna system which is connected to a common master anchor node. Each antenna head is affected by different channels parameters, what makes the estimation more difficult. The proposed method combines received signal strength and time of flight measurements to estimate the target location. In our investigations, we also consider a one-level hierarchical Bayesian network model, which introduces conditional interdependencies to the model parameters, resulting in less susceptibility to local variations. The Markov Chain Monte Carlo sampling method is used to approximate the posterior distribution of the two-dimensional target’s location coordinates. The root mean square error is used to evaluate the performance of the proposed solution in indoor scenarios. Our results show that by combining hybrid measurements or increasing conditions between the parameters by a hierarchical approach, the proposed mechanisms outperform the classic Bayesian model when estimating the target node using even fewer measurements.
International Symposium on Wireless Communication Systems
|Pages:||1 - 6|
Proceedings of the 17th International Symposium on Wireless Communication Systems (ISWCS), 6-9 September 2021
International Symposium on Wireless Communication Systems (ISWCS)
|Type of Publication:||
A4 Article in conference proceedings
|Field of Science:||
213 Electronic, automation and communications engineering, electronics
Academy of Finland through the grants No. 318927 (project 6Genesis Flagship) and No. 24303208.
|Academy of Finland Grant Number:||
318927 (Academy of Finland Funding decision)
© 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.