Alessandro Anzaloni

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This paper presents technology for monitoring and assessment of network QoS parameter for Voice over IP (VoIP) applications in inter-domain environment. The technology is based on automated analysis and description of structures (patterns) of QoS parameter behaviour impacting the VoIP quality: “Quality impairment” patterns, i.e. “outliers” of network delay(More)
In this work we introduce a peer-to-peer approach for in-flight entertainment video on-demand systems. Such applications are traditional ways for the airline to improve profit from its operation and attract customers. We outline how a peer-to-peer system should be organized to address this specific application and reduce direct operational costs by reducing(More)
This paper presents an overview on green computing and energy aware to network communication. There was a measurement of energy efficiency and comparison of the main network transfer protocols used on the Internet. A tool named Energy Consumption Model was developed and inserted into the discrete event simulator Opnet Modeler to run the tests. An exhaustive(More)
Our work evaluates the use of software-defined networking (SDN) for reliable communication. Reliable communication has become an important topic in many areas, including energy communication networks or, more generally, automation control networks. Electrical grids are developing into smart grids, which depend heavily on reliability, robustness and(More)
The main idea of the third generation (3G) networks is to merge two of the most important communications systems: Cellular networks and Internet. The IP Multimedia Subsystem was defined by 3GPP as the key element in the 3G architecture that makes it possible to provide ubiquitous cellular access to all the services provided by the Internet. In this scenario(More)
Autoregressive integrated moving average (ARIMA) models are used in different researches for modelling and forecasting of traffic and Quality of Service (QoS) parameter values in telecommunication networks to make reasonable short, mediumand long-term predictions. We propose methodology to use ARIMA models for QoS prediction in network scenarios based on a(More)
In this letter we Introduce a new traffic policing mechanism able to deal with multifractal sources. The ability of monitoring accurately a traffic flow is of extreme importance to avoid malicious behavior on the part of some users and to guarantee the required quality of service of other users. The proposed policing mechanism approximates an ideal algorithm
In this letter we Introduce a new traffic policing mechanism able to deal with multifractal sources. The ability of monitoring accurately a traffic flow is of extreme importance to avoid malicious behavior on the part of some users and to guarantee the required quality of service of other users. The proposed policing mechanism approximates an ideal(More)
In this paper, we introduce a probabilistic lower bound for the amount of work arrived for self-similar processes. The obtained bound is accurate and tight. In the optical burst switching context, using the developed lower bound we obtained an analytical expression for the minimum burst length generated by a timer-based burst assembly algorithm, the maximum(More)
Many schemes that aim to tune the IEEE 802.11e EDCA transmission parameters have been proposed in the literature. Based on them, we notice that the knowledge of the numbers of active transmission queues of each Access Category has an important role in modeling and optimizing the network. In this paper, we propose a simple and standard-compliant mechanism(More)