Josephine Antoniou

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1389-1286/$ see front matter 2009 Elsevier B.V doi:10.1016/j.comnet.2009.06.006 q This work is partly funded by the ICT-2007-21 (for the University of Cyprus) and partly by t BIONETS project (for the National and Kapodistrian U * Corresponding author. Tel.: +357 22892686; fax E-mail addresses: (J. Anton (I. Koukoutsidis),(More)
The paper proposes a new simulator that supports UMTS and Enhanced-UMTS performance evaluation. Existing UMTS simulators integrate linklevel and system-level simulators, implemented using time-based simulation techniques. The proposed simulator integrates time-based link level simulations into an event-based system level simulator by extending ns-2. The(More)
This paper presents a new system level simulator that has been developed to evaluate E-UMTS (Enhanced Universal Mobile Telecommunication Systems) 3G Networks. The article describes how the simulator supports different mobility, propagation, and traffic generation models and how this simulation framework can be used to evaluate new protocols, algorithms, or(More)
Efficient network support of real-time group communications requires dedicated multiparty networking technologies, such as IP multicast, to send the same content simultaneously to multiple receivers, with intermediate routers duplicating packets as needed. The increasing popularity of group applications introduces new technical challenges to meet the users’(More)
MBMS bearer services can be provided in each cell by either Point-to-Point or Point-to-Multipoint transmission mode but for efficiency a decision has to be made between the two approaches. Initially, the fundamental criterion used to make this decision was the number of MBMS users in a cell (UE Counting). In this paper we extend our previous work, which(More)
Third generation and beyond mobile networks have brought about a demand for new services that refrain from the traditional unicast communication model. These are services demanding transmission to many receivers with acceptable efficiency and quality. In such networks radio resource management is a set of mechanisms responsible for maintaining quality of(More)
The article addresses context-aware, adaptive multiparty sessions in a heterogeneous system through such elements as adaptivity and context-awareness. The effective usage of context information can lead to contextaware content casting, especially context-aware, adaptive multicasting. Therefore, regarding the multicast service, the key functionality of an(More)
9h30: Session 1 (90 mn) Location and Tracking Supports and Services An Analysis of Navigation Algorithms for Smartphones using J2ME André C. Santos, Luìs Tarrataca, Joao M. P. Cardoso, Portugal FINDR: Low-Cost Indoor Positioning Using FM Radio Andrei Papliatseyeu, Niko Kotilainen, Oscar Mayora, Venet Osmani Digital Terrain Model Interpolation for Mobile(More)