Analysis of Physical Layer Model of WLAN 802.11g Data Transmission Protocol in Wireless Networks Used by Telematic Systems

Kasprzyk, Zbigniew; Rychlicki, Mariusz

doi:10.1007/978-3-319-07013-1_25

Cited by 12 publications

(5 citation statements)

References 3 publications

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“…This consequently generates significant maintenance costs [ 13 , 14 ]. Therefore, GPS quality, which depends on DOP (dilution of precision), the number of visible satellites (having a minimum elevation mask of 10–15°), and positioning accuracy [ 1 , 15 , 16 ] fed into a transport system including GPS receivers [ 17 , 18 , 19 , 20 ], is paramount. In this perspective, an original software solution for analyzing GPS data and determining their positioning accuracy has got a great value.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Accuracy and Reliability of Different Types of GPS Receivers

Rychlicki

Kasprzyk

Rosiński

2020

Sensors

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There are several known cases of positioning error, leading to serious consequences, sometimes also deadly. Therefore, obtaining accurate position data by means of GPS receivers is paramount. With this perspective, the aim of this study was to test the within-field accuracy of different types of GPS receivers, and to determine their reliability. A proprietary software was used to determine the positioning accuracy of nine different types of satellite receivers. In addition, their reliability was investigated, by including tests aimed at measuring their positioning accuracy in field conditions. Thus, it was possible to determine the probability that these GPS receivers can be in some states (reliability). The developed software solution could be used for further research on a wider group of the same types of satellite receivers. The results of this study could lead to draft a procedure for evaluating and selecting GPS receivers, based on their quality, prior to use. This could have a paramount importance for uses in special purpose vehicles or transport telematics systems.

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Section: Introductionmentioning

confidence: 99%

Analysis of Accuracy and Reliability of Different Types of GPS Receivers

Rychlicki

Kasprzyk

Rosiński

2020

Sensors

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“…At present, all kinds of structures (also at airports) are equipped with electrical systems and numerous electronic devices, including electronic safety systems [6,7,19,20]. Different types of telecommunication systems are necessary to provide certain services to passengers and carriers within intelligent transport systems [5,10,12]. On the basis of numerous observations, it is possible to conclude that artificially generated electric and magnetic fields of different frequency ranges may adversely affect the operation of electronic devices [18].…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Interference Issue in Safety Systems Applied at Airports

2019

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The proper operation of electronic devices used in transport facilities is possible by protecting them against the effect of adverse electromagnetic fields. At present, all kinds of facilities, including critical infrastructure facilities, intended for functioning in peace conditions and emergency states, are equipped with power systems and numerous electronic devices, including electronic safety systems. On the basis of observing the process of their operation, it can be concluded that an artificially generated intended or unintended electromagnetic field, within various frequency ranges, may negatively affect the operation of electronic devices. It was found that the operation of the electronic safety systems applied at airports may be subject to interference as a result of the impact of adverse electromagnetic fields. Therefore, it is necessary to analyse the impact of electromagnetic interference on the operation of these systems. This article presents a developed author’s operation process model including electromagnetic interference within low frequencies. The reliability and operation analysis of the electronic safety systems carried out by the authors allows for numerical assessment of various types of solutions – both technical and organisational ones. As a result, they can be implemented, in order to minimise the impact of electromagnetic interference on the system functioning. This is a new approach to this issue, as there are currently designed and installed security systems at airports, but there is no analysis of the impact of electromagnetic interference on their functioning. In further research concerning this issue, the authors plan to further develop reliability-operational models, which will differentiate between the states of partial fitness. It will allow for more accurate mapping of the operation of the electronic safety systems which are applicable at airports.

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“…[Kaniewski & Lesnik & Susek & Serafin 2015, Paszek & Kaniewski 2016) and of non-intentional ones (industry power supplies, generators and electric engines, power cables and lines, etc. ), are contributing to formation of an "electromagnetic smog", able to decrease working conditions of components of security systems, and also other ICT systems [Kasprzyk & Rychlicki 2014, Lewiński & Perzyński & Toruń 2012, Sumiła & Miszkiewicz 2015]. The quality of information does also mean, in case of mentioned exploitation conditions [Stawowy 2015, Stawowy & Dziula 2015.…”

Section: Introductionmentioning

confidence: 99%

Low Frequency Electromagnetic Interferences Impact on Transport Security Systems Used in Wide Transport Areas

Dziula¹,

Paś²

2018

TransNav

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The article presents the impact of electromagnetic interferences of low frequency range, on transport security systems used in wide transport areas. Intended and unintended (stationary and mobile), electromagnetic interferences, impacting on items and components constituting transport system at wide area (seaport, railway, etc.), cause changes of its vulnerability, resistance and durability. Diagnostics of interferences sources (amplitude, frequency range, radiation characteristics, etc.), appearing within transport environment, and usage of appropriate technical solutions of systems (i.e. shielding, reliability structures), allows for safe implementation of safety surveillance of human beings, properties and communication means.

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Analysis of Physical Layer Model of WLAN 802.11g Data Transmission Protocol in Wireless Networks Used by Telematic Systems

Cited by 12 publications

References 3 publications

Analysis of Accuracy and Reliability of Different Types of GPS Receivers

Analysis of Accuracy and Reliability of Different Types of GPS Receivers

Electromagnetic Interference Issue in Safety Systems Applied at Airports

Low Frequency Electromagnetic Interferences Impact on Transport Security Systems Used in Wide Transport Areas

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