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Prestandautvärdering av Bluetooth och Wi-Fi för en smart hubb
KTH, School of Technology and Health (STH), Medical Engineering, Computer and Electronic Engineering.
KTH, School of Technology and Health (STH), Medical Engineering, Computer and Electronic Engineering.
2017 (Swedish)Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesisAlternative title
Performance evaluation of Bluetooth and Wi-Fi for a smart hub (English)
Abstract [sv]

Examensarbetet har utförts på uppdrag av företaget Seavus som såg ett behov avatt minska kabelanvändning i kontoret. Enhetsanvändning kan effektiviseras medhjälp av en central styrenhet, en så kallad smart hubb.Ett problem är att välja mellan Bluetooth och Wi-Fi för kommunikation mellan an-vändaren och den smarta hubben. Valet kan bero på flera faktorer som exempelvis,bandbredd (datahastighet), jitter (fördröjningsvariation) och paketförluster, vilkaär viktiga parametrar för att bedöma kvaliteten på kommunikationen.Plattformen Raspberry Pi tillsammans med kompatibel programvara användes föratt utföra prestandatester mellan Bluetooth och Wi-Fi i olika miljöer.Resultatet visade att Wi-Fi lämpar sig bäst för kommunikation med hög datahas-tighet och lågt jitter men där relativt hög grad av paketförlust är acceptabelt. Blue-tooth lämpar sig bäst för kommunikation med låg datahastighet, med högt jitteroch där det är viktigt att ha så låg paketförlust som möjligt.

Abstract [en]

This thesis has been carried out on behalf of the consulting company Seavus to re-duce cable usage in their office. Smart hubs (i.e. a central control unit) are made tomake usage of devices more effective.One problem is to decide between Bluetooth and Wi-Fi for communication betweenthe user and the smart hub. The choice may depend upon several factors such asbandwidth (throughput), jitter (variation in delay) and packet loss, which are im-portant parameters for assessing the quality of the communication channel.The HW-platform Raspberry Pi and compatible software was used as a measure-ment tool to test Bluetooth and Wi-Fi in different environments.The result showed that Wi-Fi is best suited for communication systems that requirehigh bandwidth and low jitter, and where high amount of packet loss is tolerable.Bluetooth is best suited for communication systems where low bandwidth and highjitter is tolerable, and minimal packet losses preferred.

Place, publisher, year, edition, pages
2017. , p. 54
Series
TRITA-STH ; 2017:48
Keywords [en]
Smart hub, control unit, Bluetooth, Wi-Fi, Raspberry Pi, packet loss, jitter
Keywords [sv]
Styrenhet, hubb, Bluetooth, Wi-Fi, prestanda, Raspberry Pi, paketförluster, jitter
National Category
Electrical Engineering, Electronic Engineering, Information Engineering Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-208935OAI: oai:DiVA.org:kth-208935DiVA, id: diva2:1108979
External cooperation
Seavus
Subject / course
Electrical Engineering
Educational program
Bachelor of Science in Engineering - Electrical Engineering
Supervisors
Examiners
Available from: 2017-06-16 Created: 2017-06-13 Last updated: 2017-06-16Bibliographically approved

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