A model to measure Quality of Experience (QoE) of Online Social Gaming

Understanding the impact of socialization on player Quality of Experience (QoE), which is an important aspect in Online Social Games (OSG), has become a hot research topic. Of the various ways of measuring the player's QoE, in this thesis, we propose and make use of the model used to extract objective data from the players in combination with...

Impairment-Aware Routing in Translucent Spectrum-Sliced Elastic Optical Path Networks

Spectrum-sliced elastic optical path (SLICE) technology offers a more flexible bandwidth allocation in optical networks than wavelength division multiplexing. It allows different connections to be served via different modulation formats. However, as with any optical network, the optical signal may be susceptible to signal impairments, especially...

Second-order mean-field susceptible-infected-susceptible epidemic threshold

Do greedy assortativity optimization algorithms produce good results?

Smart integration of electric vehicles in an energy community

With increasing penetrations of renewable distributed generations (DGs) and electrified vehicles (EVs), the volatility of the renewable sources and the huge load of the EVs induce tremendous challenges for the power grid. The two technologies also have considerable synergetic potential to alleviate these challenges if they are intelligently...

Architecting the smart grid as a holarchy

The ever increasing concerns for energy security, energy efficiency, and sustainable energy is offering various challenges for the power grid. With increasing penetration of the distributed generations, the electricity power system is facing an era of prosumerization, whereby all stakeholders can autonomously produce, consume, import and/or...

How Much do Your Friends Tell About You?: Reconstructing Private Information from the Friendship Graph

After the early land rush and fast exponential growth of online social networking platforms, concerns about how data placed in online social networks may be exploited and abused have begun to appear among mainstream users. Social networking sites have responded to these new public sentiments by introducing privacy filters to their site, allowing...

Epidemic phase transition of the SIS type in networks

Optimization of network protection against virus spread

The effect of virus spreading in a telecommunication network, where a certain curing strategy is deployed, can be captured by epidemic models. In the N-intertwined model proposed and studied in [1], [2], the probability of each node to be infected depends on the curing and infection rate of its neighbors. In this paper, we consider the case...

Survivable Impairment-Aware Traffic Grooming

Traffic grooming allows efficient utilization of network capacity by aggregating several independent traffic streams into a wavelength. In addition, survivability and impairment-awareness (i.e., taking into account the effect of physical impairments) are two important issues that have gained a lot of research interest in the area of optical...

Pandemics and networks: The case of the Mexican flu

The recent widespread of the new Mexican flu and SARS show the high dependency on contemporary traveling patterns. The air transport network is recognized as an important channel of epidemic propagation for different diseases. In order to predict epidemic spreading and the influence of protection measures, a mathematical model of the Susceptible...

Model for Trans-sector Digital Interoperability

Interoperability refers to the ability of two or more systems or components to exchange information and to use the information that has been exchanged. The importance of interoperability has grown together with the adoption of Digital Information Networks (DINs). DINs refer to information networks supported by telecommunication infrastructures...

The Origin of Value Through Information Networks: A Preliminary Framework from an Evolutionary Holonic Perspective

The worldwide extraordinary level of interest in digital information networks deployment among nations is due to the strong perception that they bring economic, social and environmental value. Our literature review on studies aiming at clarifying the value of information networks, led us to conclude that these studies take speculative, elusive...

Capacity measurement in small-scale, heterogeneous, best-effort IP networks

Current home networks are not well designed to support quality of service (QoS). Successfully employing current QoS solutions in heterogeneous environments, such as home networks, requires compatibility between the many possible solutions for the different network technologies. Often the solutions need support from all devices throughout the...

A new type of lower bound for the largest eigenvalue of a symmetric matrix

Survivable Impairment-aware Traffic Grooming in WDM Rings

Wavelength Division Multiplexing (WDM) optical networks offer a large amount of bandwidth using multiple, but independent wavelength channels (or lightpaths), each operating at several Gb/s. Since the traffic between users is usually only a fraction of the capacity offered by a wavelength, several independent traffic streams can be groomed...