Národní úložiště šedé literatury Nalezeno 4 záznamů.  Hledání trvalo 0.00 vteřin. 
Implementation and Performance Evaluation of the LoRaWAN Communication Technology Utilizing the NS-3
Bahna, Martin ; Možný, Radek (oponent) ; Mašek, Pavel (vedoucí práce)
The diploma thesis deals with an implementation of the LoRaWAN wireless network within the NS-3 simulation environment. The thesis defines IoT in general, together with its technologies and types of communication between devices. Subsequently, the LPWAN technology is outlined, as well as its requirements and protocols that are most widely used with this technology. The thesis then describes the LoRaWAN technology in detail, its layers, network architecture and security. The practical part of this thesis sheds some light on the NS-3 simulation environment and the most suitable LoRaWAN module that was selected from the available ones. The chosen module is described in detail and imported to the NS-3 simulation environment. Two simulation scenarios are then performed. The first scenario is focused on the impact created by increasing the number of end devices in the network. The second scenario is focused on the impact created by increasing the distance between the end device and the gateway. The results of the simulations are recorded in the tables which are then used to display the given results in graphs. Last chapter deals with module modification where new frequency bands are implemented and theoretical setup of duplex and encrypted communication is described.
Detection of anomalies in LoRaWAN type of wireless networks
Bahna, Martin ; Možný, Radek (oponent) ; Pospíšil, Ondřej (vedoucí práce)
The present bachelor thesis deals with the LoRaWAN wireless network’s security. First, IoT is defined in general, together with its technology, its standards and relevant communication protocols. Subsequently, the LPWAN technology is outlined, as well as its requirements and protocols that are most widely used with this technology. The thesis then describes the LoRaWAN technology further, with the focus maintained on its security. Following the security analysis, the most common attacks are mentioned, and possible security incident scenarios are recounted. The practical part of this thesis sheds some light on the process of personal construction of the LoRaWAN network, together with component selection and configuration. Two attacks are then performed on the network, carried out in accordance with the given scenarios. Lastly, a method of detecting these attacks is proposed and explained.
Implementation and Performance Evaluation of the LoRaWAN Communication Technology Utilizing the NS-3
Bahna, Martin ; Možný, Radek (oponent) ; Mašek, Pavel (vedoucí práce)
The diploma thesis deals with an implementation of the LoRaWAN wireless network within the NS-3 simulation environment. The thesis defines IoT in general, together with its technologies and types of communication between devices. Subsequently, the LPWAN technology is outlined, as well as its requirements and protocols that are most widely used with this technology. The thesis then describes the LoRaWAN technology in detail, its layers, network architecture and security. The practical part of this thesis sheds some light on the NS-3 simulation environment and the most suitable LoRaWAN module that was selected from the available ones. The chosen module is described in detail and imported to the NS-3 simulation environment. Two simulation scenarios are then performed. The first scenario is focused on the impact created by increasing the number of end devices in the network. The second scenario is focused on the impact created by increasing the distance between the end device and the gateway. The results of the simulations are recorded in the tables which are then used to display the given results in graphs. Last chapter deals with module modification where new frequency bands are implemented and theoretical setup of duplex and encrypted communication is described.
Detection of anomalies in LoRaWAN type of wireless networks
Bahna, Martin ; Možný, Radek (oponent) ; Pospíšil, Ondřej (vedoucí práce)
The present bachelor thesis deals with the LoRaWAN wireless network’s security. First, IoT is defined in general, together with its technology, its standards and relevant communication protocols. Subsequently, the LPWAN technology is outlined, as well as its requirements and protocols that are most widely used with this technology. The thesis then describes the LoRaWAN technology further, with the focus maintained on its security. Following the security analysis, the most common attacks are mentioned, and possible security incident scenarios are recounted. The practical part of this thesis sheds some light on the process of personal construction of the LoRaWAN network, together with component selection and configuration. Two attacks are then performed on the network, carried out in accordance with the given scenarios. Lastly, a method of detecting these attacks is proposed and explained.

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