In the context of wireless user’s increasing demands for better device power and battery management, this paper investigates some factors that can impact the power consumption on the energy consumption of mobile devices. The focus is on two factors when performing multimedia streaming: the impact of the traffic location within a WLAN; and the impact of the radio access network technology (WLAN,...

Recently, sharing the radio access network (RAN) has become an important issue for 3G and beyond mobile wireless operators. In addition to user and service considerations, there are economic and technical advantages to 3G and beyond shared networks. This is driving optimizations in the deployment and development of national 3G and 4G rollouts. However, shared 3G and 4G networks exhibit many of ...

UMTS (Universal Mobile Telecommunications System) is the most expanding mobile technology nowadays. Evolution of networks proceeds with improvement of the core network and with integration of alternative wireless access networks. To improve present communication systems, an UMTS standard compliant simulation environment is essential. This paper introduces an UTRAN (UMTS Terrestrial Radio Access...

This paper presents an experimental wireless platform allowing the seamless handoff of mobile terminals with on-going video sessions across heterogeneous radio access technology networks. The handover decision is taken by considering parameters from the physical and network layers from both the mobile terminal and radio access networks using Media Independent Handover (MIH) concept. It is demon...

In heterogeneous radio access networks mobile terminals can dynamically change their radio access not only between access points but also between different radio access technologies (RATs). We present a network based Multi-Radio Management (MRM) for seamless control of inter-RAT mobility. Access Selection can be triggered by a change of radio channel quality, by the start of an application or b...

The development toward programmatic operation and control of 5G networks is a compelling and technically challenging task. A fundamental component is the capability of exposing and controlling the network state across heterogeneous equipment in a unified manner. In this paper, we outline the COHERENT approach to network abstractions enabling unified representation and programming of heterogeneo...

This paper presents an overview of a hierarchical Resource Management architecture for future mobile communications systems. The architecture is designed to be generic and can therefore be adopted for a range of Radio Access Methodologies. In particular it provides a mechanism for radio resource management across airinterfaces such as those being defined for use with UMTS. Given the move toward...

We investigate the performance of Internet-ofThings (IoT) networks under passive attacks from eavesdroppers capable of monitoring individual links. An IoT network with multiple sensor classes is studied where every sensor class has a local access point (LAP) which are connected to one or more small cell base-station access points (SAP) which in turn are connected to a central cloud access point...

Several applications of practical interest stem from the capability to monitor and store packet-level traces in a 3G network. Among them, the possibility to infer and locate network problems (e.g. persistent shortage of capacity, or equipment misfunctioning), in the core and radio sections, without direct access to the equipments. This approach yields strong practical benefits, given the costs ...

In this paper, we study the sharing of a radio access network infrastructure by two mobile operators. Knowing the possible locations of the base stations, each operator chooses to invest or not on a base station, and its aim is to maximize its profit. We characterize the existence of Nash equilibria in such a game and we measure their quality with respect to the maximization of the overall prof...