Indoor Positioning System Designed for User Adaptive Systems

2015 38th International Conference on Telecommunications and Signal Processing (TSP)

Benikovsky

2015

Self Cite

In this paper the impact of the Access Points (APs) removal on localization accuracy of Rank Based Fingerprinting (RBF) will be investigated using simulations. The RBF algorithm was previously proposed by the authors and it seems to improve performance of the traditional fingerprinting algorithms and reduce impact of the device change on the accuracy of the positioning process. In the first part of the paper the impact of APs with different Received Signal Strength values on the performance of the positioning using RBF algorithm will be investigated. Based on results achieved in the simulation, algorithm for APs removal will be proposed and tested in simulations and real world experiments. Simulations will be performed in the model created in Matlab environment. Results achieved by the RBF algorithm during will be compared to the results achieved by the traditional Nearest Neighbour family algorithms.

Section: Discussionmentioning

confidence: 99%

Impact of APs removal on accuracy of fingerprinting localization algorithms

2015 38th International Conference on Telecommunications and Signal Processing (TSP)

Benikovsky

2015

Self Cite

“…Two tested positioning systems based on Wi-Fi and GSM were designed at the University of Zilina. System based on Wi-Fi is called WifiLOC [5]. System based on GSM network was designed in [4].…”

Section: Tested Positioning Systemsmentioning

confidence: 99%

“…These alternative systems should be more reliable with requested positioning accuracy. We will test positioning systems based on Wi-Fi and GSM network described in [4], [5]. These results will be compared with currently widely used solution implemented in all Android smartphones.…”

mentioning

confidence: 99%

How to solve GNSS problem in critical environment?

Mlynka

2013 IEEE 17th International Conference on Intelligent Engineering Systems (INES)

2013

Information about user position is very important due to increasing interest in Location Based Services (LBSs). Nowadays, service providers try to provide ubiquitous LBSs. It leads to solve ubiquitous positioning, i.e. localize mobile user anywhere and anytime. This challenge mainly depends on the actual environment where user position is determined. The providers try to divide all environments to two basic types: outdoor and indoor. Positioning in both types requires different ways to estimate position. This paper is focused on outdoor environment. GNSSs (Global Navigation Satellite Systems) provide acceptable reliability in outdoor, but are not very reliable in dense urban areas. Entrances to buildings can also be considered as critical environment, because of interconnection between outdoor and indoor. Therefore user positioning should be as reliable as possible. Generally, tall buildings cause the biggest problems, because mobile device is in GNSS signal shadow and positioning result is negative affected. This paper analyses these problems and try to propose a solution. The proposal is based on alternative positioning solutions based on WLAN, GSM network and Android Location Provider (ALP). These systems are compared to GPS (Global Positioning System) from accuracy point of view.

“…In SelfLoc, the user needs to define the point from which he wants to be navigated to the destination point. WifiLOC system was developed at the Department of Telecommunications and Multimedia at University of Zilina [11,20]. This localization system utilizes positioning based on Wi-Fi fingerprinting method.…”

Section: Navigation Inside the Building Maps Downloaded Frommentioning

confidence: 99%

“…On the other hand, in the indoor environment positioning based on Wi-Fi fingerprinting localization is used to estimate position of the mobile device. In the navigation, position of the mobile device is estimated using WifiLOC positioning system [11]. This system has mobile-assisted centralised architecture, which means that measurements required for position estimation are performed by the mobile device.…”

Section: Introductionmentioning

confidence: 99%

Impact of Used Communication Technology on the Navigation System for Hybrid Environment

Journal of Computer Networks and Communications

Mlynka

2012

Self Cite

This paper deals with navigation of mobile device in outdoor and indoor environment by only navigation system or application. In the paper, the navigation system is proposed in the light of seamless navigation service. Main parts of the system from positioning point of view are based on GPS and WifiLOC system. WifiLOC is an indoor positioning system based on Wi-Fi technology. The proposal of the system will be described in detail. The system is implemented at the University of Zilina as a pilot, noncommercial project; therefore it is called University Mobile Navigation System (UMNS). The navigation system can be characterized as realtime system, that is, the system operations cannot be significantly delayed. Since delay of the system depends significantly on communication platform used for map information downloading or communication with the localization server. We decided to investigate an impact of the used communication platform on the time needs for some of the functions implemented in navigation system. Measurements were performed in the real-world application. Next experiment is focused on testing of the accuracy of used indoor positioning system. Outdoor positioning accuracy is not tested because GPS is utilized in outdoor, and this system was already exhaustively investigated.