Challenges introduced by heterogeneous devices for Wi‐Fi–based indoor localization

Machaj, Juraj; Brída, Peter; Majer, Norbert

doi:10.1002/cpe.5198

Cited by 7 publications

(4 citation statements)

References 34 publications

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“…The challenges related to indoor positioning using Wi-Fi signals were summarized in our previous work [ 31 , 32 ]. An improved Wi-Fi location fingerprint positioning algorithm for robot indoor positioning and navigation was described in [ 33 ].…”

Section: Related Workmentioning

confidence: 99%

A Development of an IoT-Based Connected University System: Progress Report

Matúška

Machaj

Hutar

et al. 2023

Sensors

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In this paper, a report on the development of an Internet of Things (IoT)-based connected university system is presented. There have been multiple smart solutions developed at the university over recent years. However, the user base of these systems is limited. The IoT-based connected university system allows for integration of multiple subsystems without the need to implement all of them in the same environment, thus enabling end-users to access multiple solutions through a single common interface. The implementation is based on microservice architecture, with the focus mainly on system robustness, scalability, and universality. In the system design, four subsystems are currently implemented, i.e., the subsystem for indoor navigation, the subsystem for parking assistants, the subsystem for smart classrooms or offices, and the subsystem for news aggregation from university life. The principles of all implemented subsystems, as well as the implementation of the system as a web interface and a mobile application, are presented in the paper. Moreover, the implementation of the indoor navigation subsystem that uses signals from Bluetooth beacons is described in detail. The paper also presents results proving the concept of the Bluetooth-based indoor navigation, taking into account different placements of nodes. The tests were performed in a real-world environment to evaluate the feasibility of the navigation module that utilizes deterministic fingerprinting algorithms to estimate the positions of users’ devices.

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Section: Related Workmentioning

confidence: 99%

A Development of an IoT-Based Connected University System: Progress Report

Matúška

Machaj

Hutar

et al. 2023

Sensors

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“…Internet of things and big data technologies have made great contributions to promoting social development, such as security detection [1,2], autonomous vehicles [3], risk assessment [4], resources or flow shop scheduling [5][6][7], and so on [8][9][10][11]. Among them, location information plays an important role in biological and industrial production safety [12]. For instance, in the battle against the novel coronavirus disease [13,14], big data and IoT is used to monitor and predict the spread whereabouts of potential coronavirus cases.…”

Section: Introductionmentioning

confidence: 99%

A modified error-oriented weight positioning model based on DV-Hop

2022

KSII TIIS

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The distance vector-hop (DV-Hop) is one of the emblematic algorithms that use node connectivity for locating, which often accompanies by a large positioning error. To reduce positioning error, the bio-inspired algorithm and weight optimization model are introduced to address positioning. Most scholars argue that the weight value decreases as the hop counts increases. However, this point of view ignores the intrinsic relationship between the error and weight. To address this issue, this paper constructs the relationship model between error and hop counts based on actual communication characteristics of sensor nodes in wireless sensor network. Additionally, we prove that the error converges to 1/6CR when the hop count increase and tendency to infinity. Finally, this paper presents a modified error-oriented weight positioning model, and implements it with genetic algorithm. The experimental results demonstrate excellent robustness and error removal.

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“…The authors in Reference discussed challenges introduced by heterogeneous devices for Wi‐Fi‐based indoor localization. They investigated feasibility of Wi‐Fi‐based positioning on different devices and highlighted some of the problems that researchers should have to face during proposal of novel positioning algorithms.…”

mentioning

confidence: 99%

Editorial on Innovative Network Systems and Applications together with the Conference on Information Systems Innovations for Community Services

Hodoň

Furtak

Fahrnberger

et al. 2020

Concurrency and Computation

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The purpose of this special issue is to assemble a selection of best research articles that were presented within the 6th International Conference on Innovative Network Systems and Applications (iNetSApp'18), 1 which was organized under the Federated Conference on Computer Science and Information Systems 2018 (FedCSIS'18), 2 which was held in the Polish city Pozna ń. According to the FedCSIS policy, 23% acceptance rate was kept in all regular paper submissions with the help of the well-structured and experienced conference program committee. Since only the little amount of papers met the quality for the publication in this special issue, other selected best papers from the 18th International Conference on Innovations for Community Services (I4CS 2018), 3 which was held in Žilina, Slovakia, were selected for the publication. For this special issue, only the papers with best review score were selected, thus the quality of the CPE series can be conserved.This special issue focuses on different applications and algorithm developments in the area of modern network systems which encompass a wide range of solutions and technologies, including wireless and wired networks, network systems, services, and applications. The scope of this special issue is broad, aiming at different results in numerous active research areas oriented toward various technical, scientific, and social aspects of network systems and applications. This is supplied by the recent advances in the theory and practice in a wide range of aspects of Internet community services, especially of how community services can be used in many areas and how they have been deployed.The authors in Reference 4 focused on the improvements of the convergence time in IP networks. They introduced a new kind of IP fast re-route (IPFRR) mechanism called the multicast repair (MREP) IPFRR mechanism, which provides an advanced fast reroute technique for Internet service providers' core networks. The M-REP IPFRR mechanism is based on IP multicast and utilizes Protocol Independent Multicast-Dense Mode with the modification of an internal reverse path forwarding check. The M-REP IPFRR mechanism does not depend on any particular routing protocol type (distance-vector or link-state) and requires less system resources because of its precomputation-less character but still provides immediate reaction to failure.The article 5 dealt with the problematic of the work with the large datasets. The article proposed a Flower Index Approach as the method for dealing with the data processing. With this approach, it was possible to remove the impact of the High-Water Mark, as well as to remove useless block loading with no relevant data. On the other hand, it provided effective data access stream using a specific index. Full Table Scan could be the skipped and data could be accessed directly using the index ROWID locators.Data reliability with temporal data retrieval was discussed in the article. 6 The authors referenced an attribute-oriented temporal model with reflection on data grouping tech...

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Challenges introduced by heterogeneous devices for Wi‐Fi–based indoor localization

Cited by 7 publications

References 34 publications

A Development of an IoT-Based Connected University System: Progress Report

A Development of an IoT-Based Connected University System: Progress Report

A modified error-oriented weight positioning model based on DV-Hop

Editorial on Innovative Network Systems and Applications together with the Conference on Information Systems Innovations for Community Services

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