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Enhancing service portability in upcoming 3G UMTS networks & security aspects
2010 Edition, April 1, 2010 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Compared to other wired networks, complexity in the 3G UMTS is due its interactions with different entities. Within the UMTS, services have to deal with a great number of different QoS, small user display, variant bandwidth and small battery power. Most of...

UMTS networks
2006 Edition, Volume 12, March 1, 2006 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The expansion of UMTS increases the production of terminals, services, and the installation of the new mobile telephony base stations. The development of UMTS telephony indicates a great possibility of growth of power electronics. The power supply system described in...

New attacks on UMTS network access
2009 Edition, May 1, 2009 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

In this paper we propose two new attacks on UMTS network. Both attacks exploit the UMTS-GSM interworking and are possible in the GSM access area of UMTS network. The first attack allows the attacker to eavesdrop on the entire traffic of the victim...

Proactive call drop avoidance in UMTS networks
2013 Edition, April 1, 2013 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The rapid advancement of smartphones has instigated tremendous data applications for cell phones. Supporting simultaneous voice and data services in a cellular network is not only desirable but also becoming indispensable. However, if the voice and data are serviced...

Interconnecting WLANs with UMTS networks
2006 Edition, Volume 5, June 1, 2006 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Since the early nineties, wireless communications grew substantially in our societies to satisfy the latent need for mobile communications, with the main focus being communicate "whenever and wherever" one wants. Many protocols were proposed, of which 2.5G GSM/GPRS (Global System for Mobile...

Flat Cellular (UMTS) Networks
2007 Edition, March 1, 2007 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Traditionally, cellular systems have been built in a hierarchical manner: many specialized cellular access network elements that collectively form a hierarchical cellular system. When 2G and later 3G systems were designed there was a good reason to make system hierarchical:...

Integrated QoS support in 3G UMTS networks
2000 Edition, Volume 3, January 1, 2000 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The paper discusses the quality of service (QoS) requirements for each traffic class in a wireless environment and problems in implementing the QoS requirements in the CDMA based Universal Mobile Telecommunication Service (UMTS) network. In...

Improving packet delivery in GPRS/UMTS networks
2002 Edition, Volume 5, January 1, 2002 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Mobile telecommunication systems such as General Packet Radio Service (GPRS) and Universal Mobile Telecommunications System (UMTS) provide packet-switched service for mobile terminals. 3GPP Release 4 and Release 5 further offer packet voice over a GPRS/UMTS...

Hand Off Issues in 3G UMTS Networks
2007 Edition, January 1, 2007 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Universal Mobile Telecommunication System (UMTS) is a third generation mobile communication technology based on wideband CDMA (WCDMA) and can facilitate the users in much better way as compared to the second generation of mobile communication. UMTS is superior to second...

Background service QoS in a UMTS network
2010 Edition, March 1, 2010 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

This paper presents a methodology for evaluating the quality of service provided by a cellular network for background services, such as e-mail and text messaging. Data collected from drive testing were used as the means to evaluate different drive routes on a Universal Mobile...

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