Boosting the Decentralized Distribution of Time-Varying (Multimedia) Contents

Luca Baldesi

Streaming video, cooperative, decentralized, distribution

The demand of streaming services increases continuously. Flash crowds and the consequent scalability challenges affect streaming applications, especially live and real-time multi-media. Typical centralized data distribution schemes are subject to the Goldilocks principle, namely, deploying just the right amount of resources needed for a good QoE, which poorly adapts to this kind of scenarios. On the other hand, decentralized, cooperative distribution is capable of granting the flexibility and the high degree of scalability that the forecast scenario requires. Hence, it is crucial to maximize the efficiency and effectiveness of cooperative distribution of multimedia applications by developing new theoretically models and new methodologies according to the QoE requirements. Centrality metrics and cross-layer techniques can be further investigated in this context and can play a major role in future optimized architectures. Preliminary results show how local or distributed strategies can improve the quality of live distribution systems.




Managing Resources for Software Defined Network Applications

«Intents» as the emerging northbound interface

Antonio Marsico

Software-Defined Networking, Intent-driven Networking

Software Defined Networks are completely changing how internet behaves. The management is delegated to an external software, called Network Operating System, which hosts several network applications, each one with a specific function. We focus on the NOS resource management and the communication interface between the two, developing the concept of 'intent networking'.




A study in game theory on resource allocation indistributed information and computing systems

Antonio Massaro

In socio-technical systems agents interact through technology, (examples thereof include content provision, cloud computing and e-commerce platforms). The complexity of such systems stems from technology-mediated interactions between agents. In fact, agents influence one another's choices through their interactions. When studying the dynamics of such systems, it is natural to investigate concepts of stability, equilibria, and to connect those with the notions of system design, mechanism design and optimization. Our aim is to investigate equilibrium and convergence properties of such systems, and understand how the variables that enter their description influence their performance.




Prospects and Challenges for Future Transport Networks

Federico Pederzolli

Transport Networks, Optical Networks, Resource Allocation, Spectrum Fragmentation, Space Division Multiplexing, IP over Optical Orchestration

The rate of growth of Internet traffic puts ever increasing strain on transport networks, which are realized with a mixture of packet (IP/MPLS) and circuit (Optical) technologies. This project aims to increase the effectiveness of transport networks by jointly allocating resources in both layers and exploiting recent advances in the optical domain.




Security of device-to-device communication in 5G networks

Muhammad Usman

I am working in the area of D2D communication, mainly focusing on the security architecture of D2D.