Large-Scale RTT Measurements from an Operational UMTS/GPRS Network
WICON '05 Proceedings of the First International Conference on Wireless Internet
HSDPA/HSUPA for UMTS: High Speed Radio Access for Mobile Communications
HSDPA/HSUPA for UMTS: High Speed Radio Access for Mobile Communications
NETWORKING '09 Proceedings of the 8th International IFIP-TC 6 Networking Conference
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Influence of the packet size on the one-way delay in 3G networks
PAM'10 Proceedings of the 11th international conference on Passive and active measurement
Traffic monitoring and analysis for the optimization of a 3G network
IEEE Wireless Communications
Characterizing delays in norwegian 3g networks
PAM'12 Proceedings of the 13th international conference on Passive and Active Measurement
Obtaining in-context measurements of cellular network performance
Proceedings of the 2012 ACM conference on Internet measurement conference
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Users expect mobile Internet access via 3G technologies to be comparable to wired access in terms of throughput and latency. HSPA achieves this for throughput, whereas delay is significantly higher. In this paper we measure the overall latency introduced by HSUPA and accurately dissect it into contributions of USB-modem (UE), base station (NodeB) and network controller (RNC). We achieve this by combining traces recorded at each interface along the data-path of a public operational UMTS network. The actively generated sample traffic covers real-time applications. Results show the delay to be strongly dependent on the packet size, with random components depending on synchronization issues. We provide models for latency of single network entities as well as accumulated delay. These findings allow to identify optimum settings in terms of low latency, both for application and network parameters.