20.500.12556/DKUM-83710 Vpliv zasičenosti frekvenčnega spektra na delovanje brezžičnih naprav magistrsko delo The influence of frequency spectrum saturation on the performance of wireless devices V magistrskem delu smo obravnavali problem vpliva zasičenosti frekvenčnega spektra na delovanje brezžičnih naprav, ki smo ga ugotavljali s sprotnim opazovanjem frekvenčnega spektra in meritvami prenosnih hitrosti med mobilno napravo in strežnikom, ki je bil žično povezan z usmerjevalnikom. Osredotočili smo se na frekvenčni področji, na katerih najbolj pogosto deluje tehnologija Wi-Fi. Merili smo prenosne hitrosti na različnih frekvenčnih kanalih, opazovali vpliv prekrivanja frekvenčnih kanalov, ocenili vpliv drugih brezžičnih tehnologij in ugotavljali vpliv mikrovalove pečice na samo prenosno hitrost. Pri meritvah prenosnih hitrosti je bila pomembna tudi postavitev usmerjevalnikov, saj na delovanje vplivajo tudi fizične ovire na poti signala. Večino tez, postavljenih na podlagi teorije, smo lahko potrdili. Kljub prizadevanju za karseda kontrolirano merilno okolje pa je prihajalo do nekaterih motenj v frekvenčnem spektru, zato je bila razlaga vplivov na meritve mestoma otežena. The master's thesis discusses the problem of the influence of frequency spectrum saturation on the performance of wireless devices, which was determined by real-time observation of the frequency spectrum and measurements of transmission speeds between the mobile device and the server connected by wire to the router. We focused on the frequency range/domain in which Wi-Fi technology most often operates. We measured transmission speeds on different frequency channels, observed the influence of overlapping frequency channels, assessed the impact of other wireless technologies, and determined the effect of the microwave oven on the transmission speed itself. The placement of routers was important when measuring transmission speeds, as physical obstacles in the signal path also affect performance. Most theses based on the theory were confirmed. Despite the effort to ensure as controlled measurement environment as possible, some disturbances in the frequency spectrum occurred, which made interpretation of the effects on the measurements difficult in some parts. frekvenčni spekter prekrivanje frekvenčnih pasov Wi-Fi frekvenčni pasovi naprav IoT frequency spectrum frequency bands overlapping Wi-Fi frequency bands of IoT devices true true false [K. Kostrevc] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2023-01-25 19:31:30 2023-03-13 13:41:49 2023-04-15 03:06:19 0000-00-00 00:00:00 2022 0 Maribor 0 Maribor 1 spletni vir (1 datoteka PDF (131 f.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 534.63:621.391(043.2) 149149699 MAG_Kostrevc_Kristjan_2023.pdf MAG_Kostrevc_Kristjan_2023.pdf 1 FF56D581AF38A01C572653E26957E724 c3f4e6b2610acb16438a7175e28faf3be0100654aa9f9c2b44b1865234a2b694 72efb578-9cdf-11ed-8529-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=165417 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0