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e & i Elektrotechnik und Informationstechnik

, Volume 123, Issue 7–8, pp 288–296 | Cite as

Traffic monitoring and analysis in 3G networks: lessons learned from the METAWIN project

  • F. Ricciato
  • P. Svoboda
  • J. Motz
  • W. Fleischer
  • M. Sedlak
  • M. Karner
  • R. Pilz
  • P. Romirer-Maierhofer
  • E. Hasenleithner
  • W. Jäger
  • P. Krüger
  • F. Vacirca
  • M. Rupp
Originalarbeit

A 3G network is a magnificently complex object embedded in a highly heterogeneous and ever-changing usage environment. It combines the functional complexity of the wireless cellular paradigm with the protocol dynamics of TCP/IP networks. Understanding such an environment is more urgent and at the same time more difficult than for legacy 2G networks. Continuous traffic monitoring by means of an advanced system, coupled with routine expert-driven traffic analysis, provides an in-depth understanding of the status and performances of the network as well as of the statistical behaviour of the user population. Such knowledge allows for a better engineering and operation practice of the whole network, and specifically the early detection of hidden risks and emerging troubles. Furthermore, the exploitation of certain TCP/IP dynamic behaviour, particularly the TCP control-loop, coupled with information extracted from the 3GPP layers, provides a cost-effective means to monitor the status of the whole network without requiring access to all network elements. In this article the main lessons are summarized learned from a two-year research activity on traffic monitoring and analysis on top of an operational 3G network.

Keywords

Traffic monitoring Traffic analysis 3G Cellular networks GPRS UMTS 

Analyse und Monitoring von Datenverkehr in 3G Netzwerken: ein Erfahrungsbericht aus dem METAWIN-Projekt

Ein 3G-Mobilfunknetz stellt ein extrem komplexes Gebilde dar, das in ein stark heterogenes und ständig wechselndes Umfeld eingebettet ist. In ihm werden komplexe Funktionen der Mobilfunkübertragung mit TCP/IP-Protokollen verbunden. Ein tiefes Verständnis dieses Systems ist dringend erforderlich, aber sehr schwierig im Vergleich zu vorhandenen 2G-Netzen. Nur die kontinuierliche Beobachtung dieses modernen Übertragungssystems erlaubt es, sowohl die Leistungsfähigkeit des Netzes zu verstehen als auch das statistische Benutzerverhalten zu interpretieren. Die daraus gewonnenen Erkenntnisse begünstigen sowohl eine verbesserte Netzplanung als auch einen optimalen Betrieb und gestatten es darüber hinaus, verborgene Risiken und vorhandene Schwierigkeiten sehr früh zu erkennen. Insbesondere erlaubt die Beobachtung bestimmter TCP/IP-Dynamik gemeinsam mit der Information, die aus den 3GPP-Schichten gewonnen wird, eine kostengünstige Möglichkeit, den Zustand des Gesamtnetzes zu erfassen ohne jedes Einzelelement des Netzes zu erfassen. In diesem Artikel sind die wesentlichen Erkenntnisse zusammengefasst, die in Folge eines zweijährigen Forschungsprojektes zur Beobachtung und Analyse eines 3G-Mobilfunknetzes gewonnen wurden.

Schlüsselwörter

Monitoring von Datenverkehr Analyse von Datenverkehr 3G Mobilfunknetze GPRS UMTS 

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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • F. Ricciato
    • 1
  • P. Svoboda
    • 2
  • J. Motz
    • 3
  • W. Fleischer
    • 4
  • M. Sedlak
    • 3
  • M. Karner
    • 4
  • R. Pilz
    • 1
  • P. Romirer-Maierhofer
    • 1
  • E. Hasenleithner
    • 1
  • W. Jäger
    • 3
  • P. Krüger
    • 3
  • F. Vacirca
    • 1
  • M. Rupp
    • 2
  1. 1.Forschungszentrum Telekommunikation Wien (ftw.)WienAustria
  2. 2.Institut für Nachrichtentechnik und HochfrequenztechnikTechnische Universität WienWienAustria
  3. 3.Kapsch CarrierComWienAustria
  4. 4.mobilkom austria AG & Co KGWienAustria

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