TCP/IP illustrated (vol. 1): the protocols
TCP/IP illustrated (vol. 1): the protocols
Wide area traffic: the failure of Poisson modeling
IEEE/ACM Transactions on Networking (TON)
Multicast-based inference of network-internal delay distributions
IEEE/ACM Transactions on Networking (TON)
A signal analysis of network traffic anomalies
Proceedings of the 2nd ACM SIGCOMM Workshop on Internet measurment
Convergence Technologies for 3G Networks: IP, UMTS,EGPRS and ATM
Convergence Technologies for 3G Networks: IP, UMTS,EGPRS and ATM
Characteristics of internet background radiation
Proceedings of the 4th ACM SIGCOMM conference on Internet measurement
MultiQ: automated detection of multiple bottleneck capacities along a path
Proceedings of the 4th ACM SIGCOMM conference on Internet measurement
Large-Scale RTT Measurements from an Operational UMTS/GPRS Network
WICON '05 Proceedings of the First International Conference on Wireless Internet
Measurement and classification of out-of-sequence packets in a tier-1 IP backbone
IEEE/ACM Transactions on Networking (TON)
Measuring IP and TCP behavior on edge nodes with Tstat
Computer Networks: The International Journal of Computer and Telecommunications Networking
Interworking architecture between 3GPP and WLAN systems
IEEE Communications Magazine
Diagnosis of capacity bottlenecks via passive monitoring in 3G networks: An empirical analysis
Computer Networks: The International Journal of Computer and Telecommunications Networking
Can active tracking of inroamer location optimise a live GSM network?
CoNEXT '07 Proceedings of the 2007 ACM CoNEXT conference
Speed testing without speed tests: estimating achievable download speed from passive measurements
IMC '10 Proceedings of the 10th ACM SIGCOMM conference on Internet measurement
A panoramic view of 3g data/control-plane traffic: mobile device perspective
IFIP'12 Proceedings of the 11th international IFIP TC 6 conference on Networking - Volume Part I
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In this work we address the problem of inferring the presence of a bottleneck from passive measurement in the UMTS core network. The study is based on one month of packet traces collected in the core network of mobilkom austria AG & Co KG, the leading mobile telecommunications provider in Austria, EU. During the measurement period a bottleneck link in the UMTS core network was revealed and removed, therefore the traces enable the accurate analysis and comparison of the traffic behavior in the two network conditions. The proposed approach exploits statistics of estimated TCP performance parameters (e.g. RTT, re-transmissions) in order to build a set of bottleneck indicators. We show that such statistics are volatile due to the presence of few top users, but this effect can be counteracted with a simple filtering method. Results show that the frequency of re-transmission events is a powerful indicator for the specific type of bottleneck under study, and it can be used to provide early warning about future occurrences of similar events. This application is particularly important for operational UMTS networks nowadays, since the traffic volumes and composition is still under evolution.