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Problem med trådlösa nätverk
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information and Communication systems.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information and Communication systems.
2014 (Swedish)Independent thesis Basic level (university diploma), 5 credits / 7,5 HE creditsStudent thesis
Abstract [sv]

Målet med detta arbete har varit att besvara frågan; ”Varför uppstår det så mycket problem med trådlösa nätverk?”. Detta har gjorts genom att studera relevant litteratur för att sedan kunna utföra två egna studier: en enkätundersökning och tre experiment. Teorin har framförallt hämtats ur kurser och material från Cisco. Undersökningen har hjälpt till att fastställa den generella datoranvändarens kunskaper om trådlösa nätverk. Respondenternas kunskapsnivå visade bland annat på skillnader i hur de använde sin utrustning; de med lägre kunskap om nätverk gick sällan eller aldrig in i sin routers webbgränssnitt. Det vanligaste problemet som uppgavs i undersökningen var en långsam trådlös hastighet; att uppleva svårigheter vid konfigurationen av en ny trådlös router visade sig däremot vara det mest ovanliga.

Experimenten genomfördes med hjälp av två accesspunkter och två klientdatorer. De visade bland annat hur kanalöverlappning i trådlösa nätverk leder till minskad hastighet, och betonade även vikten av att välja rätt kanal.

Avslutningsvis kunde vi konstatera att varken konsumenten eller teknikindustrin ensidigt kan beskyllas för problemen inom trådlösa nätverk. Båda två har enskilda saker att jobba på. Konsumenterna bör i allt högre grad ta reda på mer om den utrustning de använderför att undvika att ställa till problem, inte bara för sig själv men också för andra. Industrin skulle kunna underlätta genom att dra ner utvecklandet av nya standarder – och inte enbart fokusera på ökad genomströmningshastighet.

Abstract [en]

The goal with this research has been to answer the question; ”Why are there so many problems linked to wireless networks?”. This has been done by studying the relevant literature to then be able to conduct two self-written studies: one survey and three laboratory experiments. The theory has been taken primarily out of courses and material from Cisco. The survey has helped to determine the knowledge of the general computer-user in regards to wireless networks. The respondents level of knowledge showed, among other things, differences in the way they used their devices; those with less network-knowledge rarely, or never, accessed their routers web-interface.

The most common problem that was selected in the survey was a slow wireless speed; experiencing difficulties when configuring a new wireless router proved to be the most unusual one.

The experiments were completed through the use of two access points and two computer clients. They demonstrated, among other things, how channel overlap in wireless networks leads to a reduced data-rate, and also stressed the importance of choosing the right channel.

Lastly, the work revealed that neither the consumer nor the industry can be solely blamed for the problems that appear in wireless networks. Both of them have separate things towork towards. The consumers should, to a higher extent, find out more about the equipment they use to avoid causing problems, not only for themselves but also for others. The industry could help by slowing down the development of new standards – and to not only focus on achieving higher throughput-rates.

Place, publisher, year, edition, pages
2014.
Keyword [en]
Wireless data-communication, Network problems, WiFi, 802.11, Troubleshooting, Channel overlap
Keyword [sv]
Trådlös datorkommunikation, Nätverksproblem, WiFi, 802.11, Felsökning, Kanalöverlappning
National Category
Computer Engineering
Identifiers
URN: urn:nbn:se:miun:diva-22306OAI: oai:DiVA.org:miun-22306DiVA: diva2:729786
Subject / course
Computer Engineering DT1
Educational program
Network Management TNÄTG 120 higher education credits
Examiners
Available from: 2014-06-26 Created: 2014-06-26 Last updated: 2014-06-26Bibliographically approved

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