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Enterprise Voice Simulation (EVS) för mobila enheter i BYOD miljö.
Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics.
2014 (Swedish)Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesisAlternative title
Enterprise Voice Simulation (EVS) for mobile devices in BYOD-Envirnoment (English)
Abstract [sv]

Denna rapport introducerar Umeå universitets bakgrund till införandet av Lync Server 2013 som etablerades stabilt år 2014. Det trådlösa nätverket vid Umeå universitet trafikeras av studenter och anställda med mobila enheter som smartphones och laptops. Vid användandet av mobila enheter stiger flödesströmningen I det trådlösa nätverket med olika typer av trafiker. I denna rapport omfattas närmare ”Voice UDP” och ”Lync Enterprise Voice” med fokus på trängselkontroller vid överföringar av RTP-trafik mellan mobila klienter och 802.11 för att identifiera kvalitén i Lync-samtal, ”VoIP over WLAN”. Metoden baserades på referenser med MOS-skala 1 till 5 i syfte att jämföra vilka mobila enheter som bör kvalificeras till bästa uppnådda QoE. Resultatet av de åtta framtagna mobila enheterna framvisade att Samsung Galaxy s2 toppade totala benchmark för minst tappade och flest passerade paket. iPhone 5 resulterade den sämsta mobila enheten för RTP-trafik med mest antal förlorade paket och lägst antal passerande paket.

Benchmark:Benchmark värderas med totala summeringen av procent mätningsreferenser, Voice MOS, packet loss, max consecutive packet loss, jitter, peak jitter samt Round-Trip Delay både i upplänk och nedlänk.

Abstract [en]

This report introduces the Umeå University background to the introduction of Lync Server 2013 stable established in 2014. The wireless network at Umeå University used by students and employees with mobile devices such as smartphones and laptops. The throughput into the wireless network is affected by different types of traffics from various devices in whole network infrastructure. This report covered closer glance at "Voice UDP" and "Lync Enterprise Voice" with a focus on congestion control for transfers of RTP traffic between mobile clients and 802.11 to identify the quality of a Lync call, "VoIP over WLAN”. The method is based on references with MOS scale of 1 to 5 in order to compare which mobile device should qualify for best achieved Quality of Experience. The results of the eight selected mobile devices showed that the Samsung Galaxy s2 topped the overall benchmark for minimum dropped and most passed packets. The iPhone 5 resulted in the worst mobile device for RTP traffic with the most amount of lost packets and the lowest amount of passing packets.Benchmark:Benchmark measured by the total summation of percent and pmeasurement references, Voice MOS, packet loss, maximum Consecutive

Place, publisher, year, edition, pages
2014. , 54 p.
National Category
Telecommunications Computer Systems
Identifiers
URN: urn:nbn:se:umu:diva-91569OAI: oai:DiVA.org:umu-91569DiVA: diva2:736998
External cooperation
IT-stöd och Systemutveckling
Educational program
University Programme in Computer Networks and Communication Technology
Presentation
2014-06-04, 14:01
Supervisors
Examiners
Available from: 2014-11-14 Created: 2014-08-11 Last updated: 2014-11-14Bibliographically approved

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Enterprise_Voice_Simulation(8121 kB)246 downloads
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1373693e1803b300c17b5095de9f073b6ebab1f5f59258f01e3d8564d96be5a32eeef26aef4c1d34273f12bd34ff490dd47e1e6087a5db7fe2b9a4f355e21de9
Type fulltextMimetype application/pdf

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CiteExportLink to record
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Citation style
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