Mobile Broadband Service Experience and Evaluation

Abstract: 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.