Pilotna aplikacija za meritve pokritosti omrežja NB-IoT

KING, MIHAEL (author), Kos, Andrej (mentor)

Na začetku diplomskega dela je predstavljen internet stvari. Izpostavljeni so izzivi v internetu stvari, predstavljene potencialne rešitve, v nadaljevanju pa so prikazana in primerjana različna omrežja, namenjena internetu stvari. Omrežja so razdeljena v dve skupini, in sicer omrežja kratkega dosega in omrežja dolgega dosega. Omenjena omrežja so: Zigbee, Zwave, Bluetooth LE, 6LoWPAN, RFID, NFC, NB- -IoT, LTE cat. M1, LoRa in Sigfox. Primerjana so glede na specifikacije in glede na uporabnost. V nadaljevanju diplomske naloge je predstavitev omrežja Narrowband-IoT. Opisane so lastnosti omrežja, možnosti implementacije in arhitektura omrežja. Nato sledi opis delovanja aplikacije in vseh členov v aplikaciji. Ta služi kot preprosta laboratorijska platforma IoT z možnostjo razširitve in povezovanja z drugimi aplikacijami. Z uporabo te aplikacije so bile nato v Ljubljani izvedene meritve signala omrežja NB-IoT. Rezultati meritev prikazujejo pokritost testnega omrežja NB-IoT v Ljubljani za tipsko napravo NB-IoT. Ker naj bi imelo omrežje NB-IoT boljšo pokritost od omrežja LTE, sta ti dve omrežji v nadaljevanju tudi primerjani. Za lažjo primerjavo pokritosti sta primerjani tudi naprava NB-IoT in mobilni telefon s podporo omrežja LTE. V sklepu primerjave pokritosti omrežij je razvidno, da omrežje NB-IoT zaenkrat še ne dosega obljubljene boljše pokritosti, kot omrežje LTE.

• Language: Slovenian
• Keywords: Internet stvari, NB-IoT, meritve, LTE, aplikacija, MQTT
• Work type: Bachelor thesis/paper
• Organization: FE - Faculty of Electrical Engineering
• Year: 2018
• PID: 20.500.12556/RUL-101643
• Publication date in RUL: 22.06.2018

KING, MIHAEL, 2018, Pilotna aplikacija za meritve pokritosti omrežja NB-IoT [online]. Bachelor’s thesis. [Accessed 5 April 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=101643

Secondary language

• Language: English
• Title: Pilot application for NB-IoT network coverage measurement

Abstract

In the introduction of the thesis, the internet of things (IoT) is presented. Here, I indicate certain challenges of internet of things to which I provide and elaborate potential solutions. Following this, I present and compare various networks meant for IoT devices. I divided these networks into two groups, local area networks and wide area networks. The mentioned networks are as follows: Zigbee, Zwave, Bluetooth LE, 6LoWPAN, RFID, NFC, NB-IoT, LTE cat. M1, LoRa and Sigfox. Following, is a presentation of the Narrowband-IoT network. I describe the properties of the networks, its possible Implementation as well as the network architecture. Hereinafter I describe the operation of my application and all of its parts. The Application functions as a simple laboratory IoT platform with capabilities of expanding and connecting to other applications. Using this application, I have carried out measurements of the NB-IoT network in Ljubljana. The results show the coverage of the NB-IoT test network in Ljubljana for a typical NB-IoT device. Because the NB-IoT network is supposed to have a better coverage than the LTE network, I compare the two in the following section. To make comparison of coverage simpler I have chosen to compare a NB-IoT device and a mobile phone with LTE network support. Form the conclusion it is apparent that the NB-IoT does not, as of yet meet the promised better coverage than the LTE network.

• Keywords: Internet of things, NB-IoT, measurements, LTE, application, MQTT