The paper investigates the possibility of reusing frequencies of a terrestrial digital video broadcasting (DVB-T) network for a UMTS Terrestrial Radio Access Network (UTRAN) with negligible influence on the DVB-T performance. A frequency division duplex (FDD) UTRAN is deployed such that it can reuse all frequencies of the DVB-T network in each DVB-T frequency reuse cluster in the downlink, with...

The downlink capacity of a UMTS Terrestrial Radio Access Network (UTRAN) sharing the frequency spectrum with a terrestrial digital video broadcasting (DVB-T) network is investigated in this paper. For the DVB-T network, rooftop and portable outdoor reception is considered, for both, Multi Frequency Networks and regional Single Frequency Networks. The necessity to limit the interference between ...

The focus of this paper is the performance of ATM/AAL2 as a transport technology for Universal Terrestrial Radio Access Network (UTRAN) in UMTS/IMT-2000 setting. In this work, we propose an analytical model for the transparent multiplexing and transport through UTRAN of several voice channels onto a single AAL2/ATM VC. We investigate the queue building up at the AAL2 multiplexer in order to der...

The UMTS (Universal Mobile Telecommunication System) is the future network for mobile communication systems. The access network of UMTS is called UTRAN (Universal Terrestrial Radio Access Network). Many works focus on the quality of service (QoS) aspects within the UTRAN and the dimensioning aspects of the links between different nodes in the UTRAN. In Release 99 of the 3GPP standard, AAL2/ATM ...

In this work, we investigate service differentiation under IP for the transport of both real-time and non real-time user traffic in the UMTS Terrestrial Radio Access Network (UTRAN). Therein, stringent delay bounds are to be met for both types of traffic, albeit tighter for the voice traffic. For the sake of simplicity, we suggest, model and analyze the use of priority queuing, as an efficient ...

In this paper, we investigate the IP protocol as a transport option for the user traffic in the UMTS Terrestrial Radio Access Network (UTRAN), where stringent delay bounds are to be met for both real-time and non real-time traffic. We focus on real-time voice traffic and present an analytical model for the multiplexing and transport of voice channels in the UTRAN using IP. The novelty of our mo...

We propose an efficient control channel resource allocation approach to enhance the performance of voice-over-IP (VoIP) in orthogonal frequency division multiple access(OFDMA-) based next generation mobile communication systems. As the long-term evolution (LTE) of universal terrestrial radio access network (UTRAN), evolved UTRAN (E-UTRAN) is the first OFDMA-based packet radio network and thus s...

This paper describes mobility management for the third-generation mobile networks. We focus on the evolution from General Packet Radio Service (GPRS) to Universal Mobile Telecommunication System (UMTS). In this evolution, the radio access network UTRAN has been introduced, and radio-related management is moved from the core network to UTRAN. We elaborate on how this architecture change affects ...

This paper provides a high-level overview of E-UTRAN interworking and interoperability with existing Third Generation Partnership Project (3GPP) and non-3GPP wireless networks. E-UTRAN access networks (LTE and LTE-A) are currently the latest technologies for 3GPP evolution specified in Release 8, 9 and beyond. These technologies promise higher throughputs and lower latency while also reducing t...

Network optimization strategies are core ingredients of radio access network planning for second and third generation mobile systems like GSM and UMTS. We present a combined approach for network topology optimization of the UMTS terrestrial radio access network (UTRAN) which considers the logical network structure as well as transport network aspects. We focus on including Point-to-Multipoint (...