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Mobile Broadband Service Experience and Evaluation
Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
2007 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

EGDE manages Internet Radio streams up to 96kbit/s while WCDMA R99 delivers satisfactory quality for media streams up to 320 kbit/s. Internet Radio isnot possible to use over GPRS with satisfactory quality. The quality assessment for Internet Radio is highly dependent on the stream bit rate and a stream of 128 kbit/s delivers high user satisfaction.

For online gaming other parameters than the well known latency, jitter and packet loss aects the session quality. High start up or map load times will cause premature game termination and poor quality grading. Shorter Counter- Strike sessions are playable over HSPA where it outperforms WCMDA R99 inboth network performance and user quality assessment. World of Warcraft has more limited network requirements and is playable over both WCDMA R99 and

HSPA but suers from latency impairments when played over GPRS/EDGE. The developed objective quality prediction model for First Person Shooter (FPS) games, like CounterStrike, shows pretty good performance, despite a small number of test persons. The model predicts online gaming quality with an RMSE value of 0.609, prediction accuracy of 91.9% and correlation between predicted and subjective MOS of 0.8803.

Abstract [sv]

EDGE klarar att leverera Internet Radio-oden upp till bittakter av 96 kbit/s medan WCDMA R99 klarar bittakter upp till 320 kbit/s med tillfredstallande kvalitet. GPRS kan inte anvandas for Internet Radio sessioner med tillfredsstallande kvalitet. Kvalitetensbedomningen av ett Internet Radio ode ar strikt beroende av odets bithastighet och Internet Radio-oden pa 128 kbit/s och hogre levererar hog kvalitet och tillfredstallse bland anvandare.

Kvalitetsbedomningen av online spel paverkars av andra parametrar an de typiskt val kanda latency, jitter och paketforluster. Hoga start- och kartladdningstider leder till lagt betyg pa sessionen och ett tidigt avslutande av spelet. HSPA klarar kortare spel sessioner av CounterStrike och levererar avsev art mycket battre prestanda och kvalitetsbedomning an for WCDMA R99. World of Warcraft har betydligt mindre krav pa accessnatverket och ar spelbart over bade WCDMA R99 och HSPA men lider av hoga latencynivaer for GPRS/EDGE.

Den framtagna kvalitetsprediktionsmodellen for First Person Shooter (FPS) spel som CounterStrike visar pa bra prestanda, trots baserad pa ett begransat antal testpersoner. Modellen predikterar kvalitet pa online spel med ett RMSE varde pa 0.609, en prediktionssakerhet pa 91.9% och en korrelation pa 0.8803 mellan predikterat och subjektivt MOS.

Place, publisher, year, edition, pages
2007. , 63 p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-96304ISRN: LITH-ITN-KTS-EX--07/020--SEOAI: diva2:641948
Subject / course
Report in Communication and Transport Engineering
Available from: 2013-08-20 Created: 2013-08-14 Last updated: 2013-08-21Bibliographically approved

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