Characterization of a large web site population with implications for content delivery
Proceedings of the 13th international conference on World Wide Web
HSDPA/HSUPA for UMTS: High Speed Radio Access for Mobile Communications
HSDPA/HSUPA for UMTS: High Speed Radio Access for Mobile Communications
An Empirical Study on the Capacity and Performance of 3G Networks
IEEE Transactions on Mobile Computing
Experiences in a 3G network: interplay between the wireless channel and applications
Proceedings of the 14th ACM international conference on Mobile computing and networking
High-Speed Packet Access Evolution in 3GPP Release 7 [Topics in Radio Communications]
IEEE Communications Magazine
WWIC'11 Proceedings of the 9th IFIP TC 6 international conference on Wired/wireless internet communications
Evaluation of data communication opportunities from oil field locations at remote areas
Proceedings of the 2011 ACM SIGCOMM conference on Internet measurement conference
Tackling bufferbloat in 3G/4G networks
Proceedings of the 2012 ACM conference on Internet measurement conference
Improving QoE of SIP-based automated voice interaction in mobile networks
Proceedings of the 8th International Conference on Network and Service Management
First impressions on the state of cellular data connectivity in India
Proceedings of the 4th Annual Symposium on Computing for Development
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Operators around the world are improving their 3G/UMTS networks by introducing HSPA (High Speed Packet Access) that includes both, enhanced uplink and downlink. The HSPA is expected to finally provide the mobile broadband access that is able to compete with the fixed connections in performance regarding popular applications such as web browsing, VoIP, and video. However, it has remained unclear how well the live networks fulfill the promises of performance. We contribute in filling this void by providing measurements in live 3G/HSPA networks. We compare TCP and UDP goodput performance in basic WCDMA, HSDPA-only, and HSPA. Moreover, one-way delay and jitter measurement results are presented in a stationary as well as in a mobile scenario. The results show that the enhanced network outperforms clearly its predecessor by offering considerably higher data rates, lower delay, and lower jitter. Also, because of the HARQ (Hybrid Automatic Repeat request), there are notably less delay spikes observed with HSPA than with WCDMA. However, the drive tests show that handovers result in high jitter and interruptions to the communications, which causes, e.g., decreased VoIP call quality. The uplink enhancement (HSUPA) improves the TCP performance beyond the HSDPA-only access, but it is still behind that of the fixed connections. In addition, the properties of the channel allocation mechanism still considerably deteriorate the data rates seen by the user. Nevertheless, the HSPA is an enabler for true mobile broadband internet access.