Welcome

sensor-networks

Since 2014, I am Research Associate at the University of Luxembourg (SnT) and an active member of the VehicularLab team (Security and Networking Research Group). My research interests focus on sensor networks and can be decomposed into three complementary topics: intelligent transportation, sensing and distributed systems

Short bio. I became interested in telecommunication networks as a graduate student at the University of Picardie Jules Verne, Amiens, France. I attended a research-oriented program during which I started working in the field of wireless sensor networks (WSNs). Despite their energy and resource limitations these networks have unrivalled flexibility, which makes them ideal for deployment in a wide variety of environments. Specifically, during my MS thesis, I carried out a number of studies on WSNs and the security mechanisms they offer. Then, as a PhD candidate at Telecom ParisTech, Paris, France, I focused on WSNs applied to intelligent transportation systems (ITS). Specifically, I studied how sensors equipped with magnetometers and short-range wireless radio interfaces can be deployed along the road network so as to detect the passage of vehicles and exchange traffic count information. By means of in-network processing of such data, a WSN can manage traffic flows in a distributed way and without need for a central control point as it happens today – which implies lower latencies as well as more capillary, reactive and fault-resistant management of road traffic. I studied the topological features of WSN architectures for traffic management in large-scale urban areas, and developed distributed algorithms that run on the WSN and ease traffic congestion by means of adaptive traffic light control. Since then, I have been working on other aspects related to sensor networks, including activity detection, mobile and wearable computing.

 

About my research

Towards Privacy-Neutral Travel Time Estimation from Mobile Phone Signalling Data

Today’s mobile penetration rates enable cellular signaling data to be useful in diverse fields such as transportation planning, the social sciences and epidemiology. Of particular interest for these applications are mobile subscriber dwell times. They express how long users stay in the service range of a base station. In this paper, we want to evaluate […]

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Characterizing the Topology of an Urban Wireless Sensor Network for Road Traffic Management

In a near future, wireless networks will be one of the key technologies for road traffic management in smart cities. Vehicles and dedicated roadside units should be interconnected through wireless technologies such as IEEE 802.11p (WAVE). Traffic light and road signs may also take their place in this architecture, forming a large-scale network of small […]

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A Two-Level Approach to Characterizing Human Activities from Wearable Sensor Data

The rapid emergence of new technologies in recent decades has opened up a world of opportunities for a better understanding of human mobility and behavior. It is now possible to recognize human movements, physical activity and the environments in which they take place. And this can be done with high precision, thanks to miniature sensors […]

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Not a Tile Out of Place: Toward Creating Context-Dependent User Interfaces on Smartglasses

Despite the rapid pace of gadgets released on the market, research in the area of usable interfaces for wearables is lagging behind. Smartglasses are new wearables that embed diverse sensors but also have small displays, and this makes it hard for the wearer to visualize real-time data. To bridge this gap, the contribution of this […]

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Heat is in the Eye of the Beholder: Towards Better Authenticating on Smartglasses

Smart and wearable devices are trendy electronic objects that have become increasingly popular in recent years. Those devices are, by definition, tightly connected with the user’s personal activities. Authentication is therefore a critical feature for both identifying users and personalizing the services on the device. In particular, the emergence of smartglasses changed the way we […]

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