REPETTO , Matteo

Scarceness of bandwidth is a common problem to all radio networks. The cellular structure with frequency reuse has been the solution for many years in the past; however, decreasing cell sizes results in increasing handoff requests and this could be critical in high mobility environments. Moreover, the cellular structure cannot ensure the best...

The convergence towards the IP protocol has made Internet access available almost everywhere; this has leveraged new expectations about continuous and seamless communication, especially when portable devices are involved. Mobility management is a key issue in this context. The original IP specification does not account for mobility....

Internet population is growing quickly: 1.8 billion people were connected to the Internet at the end of 2009 [1] and this number is expected to grow to 2.2 billions within 2013. Right now, these people are, and will be even more surrounded by heterogeneous devices with advanced networking and rendering capabilities; in their daily life, they...

Today users are getting used to have many heterogeneous devices available in their surroundings. This opens great opportunities to build pervasive communication environments. Pervasive communications are usually user-centric in nature, as they should target sessions to users rather than their specific devices. Mobility is a key issue in such...

Nowadays people claim and expect pervasive communications, with continuous and seamless media access; that requires new communication paradigms beyond the legacy network- and device-centric approaches, and leads to the user-centric concept. Mobility is a key issue in pervasive communications, and session migration is the most related aspect...

Real-time multimedia traffic requires some minimum delivery guarantees to be effectively transmitted over packet-switched networks. This is even more necessary when interactive sessions (e.g., Voice-over-IP applications) are involved. Effective and timely packet delivery is sometimes achieved by overdimensioning network capacity. However, this...

The idea of proxying network connectivity has been proposed as an efficient mechanism to maintain network presence on behalf of idle devices, so that they can 'sleep.' The concept has been around for many years; alternative architectural solutions have been proposed to implement it, which lead to different considerations about capability,...

Current mobility protocols and architectures aremainly targeted to devices or applications and they usually lack the ability to support user-centric paradigms; moreover, they usually face a single aspect of the problem, i.e., terminal handover or session mobility. Full mobility support is only available to specific applications or protocols...

The Internet connected edge devices require active participation by generating and responding to routine applications/ protocols heart-beat messages. Failing to do this will result in loss of their presence over the Internet. A huge amount of energy is wasted every year to keep idle or unused network hosts powered-up 24/7 only to maintain the...

Future Internet is expected to evolve towards user-centric paradigms, which leverage ubiquitous and pervasive communications. Mobility will be one of the key issues in such evolution. Current mobility protocols have a number of limitations and drawbacks; until now, there is not any general solution that could face all aspects of mobility. The...

The present article describes an important outstanding project at the Savona University Campus: the research team has planned and designed the installation of a distributed generation plant which consists of a set of micro-cogeneration gas turbines and a solar system composed by photovoltaic modules. In particular, the paper deals with the...

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A network connected host generates/responds to routine applications and protocols heart-beat messages and is considered as disconnected when it fails to do this. Past studies have revealed that about 60-70% people leave their computers powered up 24/7 in the offices and at homes just to maintain the network connectivity. Huge amount of energy...

Today, an ever-increasing number of devices has networking capability. The main implication of this fact is that such devices are often left fully powered yet idle just to maintain their network presence, hence leading to large energy waste. This ultimately results in higher electricity cost for consumers. This paper tackles an effective...