Event Category: PhD Defense

PhD Thesis defense: Characterization of mobile network services to assess the impact of network slicing in a nationwide scenario

Several businesses are nowadays becoming more and more aware of the potential that lies beneath Big Data. From social media...

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PhD Thesis defense: Initial access and beam-steering mechanisms for mmWave wireless systems

Future millimeter-wave networks will support very high densities of devices and access points. This vastly increases the overhead required for...

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PhD Thesis defense: Design And Development Of A Worldwide-Scale Measurement Methodology And Its Application In Network Measurements And Online Advertising Auditing

Online advertising has evolved into a key component of the Internet we know today. It is a very complex ecosystem...

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PhD Thesis defense: Optimization Methods for Efficient Relay Techniques in Cellular Networks

Fast advance in the design of 5G cellular networks has motivated a lot of research that addresses challenges given by...

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PhD Thesis defense: Time-based Indoor Positioning and Context Information using Commodity WiFi chipsets

In the last years indoor localization and applications that use positioning information have attracted a lot of attention from the...

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PhD Thesis defense: Visible Light Communication Networks for IoT and its Application

Visible Light Communication(VLC) has emerged in the last years as a new way to communicate. Using the existing lighting infrastructure,...

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PhD Thesis defense: Deep Learning solutions for next generation slicing-aware mobile networks

By leveraging on novel concepts of virtualization and programmability, future 5G Net- works are expected to be reliable, high-performing and...

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PhD Thesis defense: Leveraging online advertising platforms to measure and characterize digital inequalities

As the Internet is becoming a fundamental aspect of the society serving as a de facto platform for social and...

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PhD Thesis defense: Experimental Analysis of the Socio-Economic Phenomena in the BitTorrent Ecosystem

BitTorrent is the most successful Peer-to-Peer (P2P) application and is responsible for a major portion of Internet traffic. It has been largely studied using simulations, models and real measurements. Although simulations and modelling are easier to perform, they typically simplify analysed problems and in case of BitTorrent they are likely to miss some of the effects which occur in real swarms.

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PhD Defense: Dynamic and Location-Aware Server Discovery based on fair DHTs

The current Internet includes a large number of distributed services. In order to guarantee the QoS of the communication in these services, a client has to select a close-by server with enough available resources. In order to achieve this objective, in this Thesis, we propose a simple and practical solution for Dynamic and Location Aware Server Discovery based on a Distributed Hash Table (DHT). Specifically, we decide to use a Chord DHT system (although any other DHT scheme can be used). In more detail, the solution works as follows. The servers offering a given service form a Chord-like DHT. In addition, they register their location (topological and/or geographical) information in the DHT. Each client using the service is connected to at least one server from the DHT. Eventually, a given client realizes that it is connected to a server providing a bad QoS, then, it queries the DHT in order to find an appropriate server (i.e. a close-by server with enough available resources). We define 11 design criteria, and compare our solution to the State of the Art based on them. We show that our solution is the most complete one. Furthermore, we validate the performance of our solution in two different scenarios: NAT Traversal Server Discovery and Home Agent Discovery in Mobile IP scenarios. The former serves to validate our solution in a highly dynamic environment whereas the latter demonstrates the appropriateness of our solution in more classical environments where the servers are typically hosts.

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