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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 31 to 40 of 266 (0.019 seconds)| 31 |
An E-Model Implementation for VoIP QoS across a Hybrid UMTS NetworkCao, Jianguo, j.cao@student.rmit.edu.au January 2009 (has links)
Voice over Internet Protocol (VoIP) provides a new telephony approach where the voice traffic passes over Internet Protocol shared traffic networks. VoIP is a significant application of the converged network principle. The research aim is to model VoIP over a hybrid Universal Mobile Telecommunications System (UMTS) network and to identify an improved approach to applying the ITU-T Recommendation G.107 (E-Model) to understand possible Quality of Service (QoS) outcomes for the hybrid UMTS network. This research included Modeling the hybrid UMTS network and carrying out simulations of different traffic types transmitted over the network. The traffic characteristics were analysed and compared with results from the literature. VoIP traffic was modelled over the hybrid UMTS network and the VoIP traffic was generated to represent different loads on the network from light to medium and heavy VoIP traffic. The VoIP over hybrid UMTS network traffic results were characterized and used in conjunction with the E-Model to identify VoIP QoS outcomes. The E-Model technique was implemented and results achieved were compared with results for other network types highlighted in the literature. The research identified an approach that permits accurate Modeling of VoIP QoS over a hybrid UMTS network. Accurate results should allow network design to facilitate new approaches to achieving an optimal network implementation for VoIP.
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Strategische Handlungsoptionen im Mobilfunk der 3. Generation aus Sicht eines Netzbetreibers der Realoptionsansatz als Instrument wertorientierter Unternehmensführung im Kontext dynamischer MärkteRassau, Stefan January 2004 (has links)
Zugl.: Oestrich-Winkel, Europ. Business School, Diss., 2004
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Interworking of wireless and mobile networks based on location information /Siebert, Matthias. January 2006 (has links)
Zugl.: Aachen, Techn. Hochsch., Diss.
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Maßnahmen zur Qualitäts- und Kapazitätssteigerung in UMTS-Mobilfunknetzen /Werner, Marc Walter. January 2006 (has links)
Techn. Hochsch., Diss., 2005--Aachen.
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Channel estimation for mobile wideband code division multiple access (WCDMA)Saur, Stephan January 2008 (has links)
Zugl.: Stuttgart, Univ., Diss., 2008
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Optimierung hybrider (Rundfunk-, Mobilfunk-) Netze durch Steuerung der LastverteilungHeuck, Christoph January 2008 (has links)
Zugl.: Braunschweig, Techn. Univ., Diss., 2008
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Design of reconfigurable digital phase locked loops for multi-standard, multi-band mobile radio terminalsVollenbruch, Ulrich January 2008 (has links)
Zugl.: Erlangen, Nürnberg, Univ., Diss., 2008
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Über die Evolution des öffentlichen Mobilfunks und die damit verbundene Reduktion der Strahlenexposition durch mobile EndgeräteBaumann, Joachim January 2007 (has links)
Zugl.: Stuttgart, Univ., Diss., 2007
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Die deutsche UMTS-Auktion : eine spieltheoretische Analyse /Niemeier, Stefan. January 2002 (has links)
Handelshochsch., Diss., 2002--Leipzig.
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Adaptiver Videotransport in MobilfunknetzenMeggers, Jens. Unknown Date (has links) (PDF)
Techn. Hochsch., Diss., 2000--Aachen.
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