Komunikacija u Internetu stvari temeljena na protokolu LoRa

undergraduate thesis

• Title (english): Communication in Internet of Things based on LoRa protocol
• Author: Nikola Bukovac
• Mentor: Igor Čavrak (mentor)
• Committee member: Igor Čavrak (predsjednik povjerenstva)
• Committee member: Josip Knezović (član povjerenstva)
• Committee member: Ivana Bosnić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2016-07-11, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing

Abstract

LoRa je modulacija nastala na temelju tehnika raspršenog spektra i omogućava prijenos podataka na velikim udaljenostima uz vrlo malu potrošnju energije pružajući velike otpornosti na smetnje iz okoline. Tipična LoRa mreža je rasprostranjena u mrežnoj topologiji zvijezda koja sadrži samo jedan mrežni pristupnik budući da je zahvaljujući modulaciji moguće pokriti vrlo veliko područje, a uz to uobičajeno se šalje mala količina podataka pa nije potreban još jedan mrežni pristupnik za ostvarivanje skalabilne mreže. Protokol LoRa podržava dinamičnu promjenu brzine prijenosa podataka za svaki čvor, koja se definira ovisno o udaljenosti pojedinog čvora od mrežnog pristupnika.
LoRaWAN je protokol koji za prijenos podataka koristi LoRa modulaciju te time zadržava sva svojstva modulacije uz dodatno osiguravanje zaštite podataka te dodatno definira komunikacijske mehanizme kojima se povećava kvaliteta usluge.
Protokoli LoRa i LoRaWAN primarno se vežu uz sve popularniji koncept Interneta stvari gdje pružaju novi način implementacije postojećih rješenja, a jednako tako i razvoj novih rješenja.

Abstract (english)

LoRa is a spread spectrum modulation that allows data transmission over long distances with a low energy consumption providing high resistance to interference from the environment. Typically a LoRa network is widespread in a star network topology that contains only one network gateway because the underlying modulation can cover a large area and normally only a small amount of data is send between end nodes and the network gateway so there is no need for another network gateway to implement a scalable network. LoRa protocol supports dynamic data rate change used for network optimization, new data rate is determined for each node separately based on its distance from the gateway.
LoRaWAN is a protocol that uses LoRa modulation as the underlying physical layer and thus retains all of the properties that are characteristic for LoRa and further defines additional communication mechanisms in order to increase the quality of service.
Protocols LoRa and LoRaWAN are primarily associated with the increasingly more popular Internet of Things, where they are used to provide a new solution for existing projects and also to provide a way to development new solutions.

• Keywords: protokol LoRa; protokol LoRaWAN; Internet stvari; Raspberry Pi; Inair9; LPWAN; bežična mreža osjetila
• Keywords (english): LoRa protocol; LoRaWAN protocol; Internet of Things; Raspberry Pi; inAir9; LPWAN; wireless sensor network
• Language: croatian
• URN:NBN: urn:nbn:hr:168:922824
• Study programme: Title: Computing; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2018-02-06 08:05:57