25 JAN

Weekly Seminar: “CASTLE: A user-friendly platform to test, evaluate, and develop contemporary wireless communication standards”

25 January 2017 - 25 January 2017
Speaker: Pol Henarejos & Alexis A. Dowhuszko

ABSTRACT: CASTLE is a hybrid testbed composed of both software and hardware components that can be easily configured to obtain standard-compliant implementations of specific network elements in contemporary wireless communication systems. CASTLE focuses on PHY-layer features of different wireless standards, including LTE and LTE Advanced (mobile communications), BGAN (satellite communications), and Li-Fi (Visible Light Communications). [...]

15 DEC

Weekly Seminar: “Richi Talent”

ABSTRACT: Richi Talent is a Richi Foundation initiative in collaboration with MISTI Spain(MIT International Science & Technology Initiatives) and it is created with the aim of raising funds to combat childhood cancer, through 3 initiatives: Richi Talent, Richi Social Entrepeneurs, Richi Music: their goal is to identify, incentivize and support promising young people who, in [...]

02 NOV

Weekly Seminar: “Collision-free WLANs: from concepts to working protocols”

02 November 2016 - 02 November 2016
Speaker: Luis Sanabria-Russo

ABSTRACT: Collisions are a main cause of throughput degradation in wireless local area networks. The current contention mechanism used in the IEEE 802.11 networks is called Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA). It uses a binary exponential backoff technique to randomize each contender attempt of transmitting, effectively reducing the collision probability. Nevertheless, CSMA/CA [...]

20 OCT

Weekly Seminar: “OWL: a Reliable Online Watcher for LTE Measurements”

20 October 2016 - 20 October 2016
Speaker: Nicola Bui

ABSTRACT: Reliable network measurements are a fundamental component of networking research as they enable network analysis, system debugging, performance evaluation and optimization. In particular, decoding the LTE control channel would give access to the full base station traffic at a 1 ms granularity, thus allowing for traffic profiling and accurate measurements. Although a few open-source [...]

29 JUL

Weekly Seminar: “Clock Synchronization in Wireless Sensor Networks: from Traditional Estimation Theory to Distributed Signal Processing”

29 July 2016 - 29 July 2016
Speaker: Yik-Chung Wu, Ph.D.

ABSTRACT: In this talk, we will review the advances of clock synchronization in wireless sensor network in the past few years.  We will begin with the optimal clock synchronization algorithms in pairwise setting, in which maximum likelihood (ML) estimator from traditional estimation theory is the major tool.  Then, we will discuss the more challenging networkwide [...]

13 JUL

Weekly Seminar: “Graph Signal Processing: Stationary Graph Signals and Topology Inference”

13 July 2016 - 13 July 2016
Speaker: Alejandro Ribeiro, Ph.D.

ABSTRACT: A network can be understood as a complex system formed by multiple nodes, where global network behavior arises from local interactions between connected nodes. Often, networks have intrinsic value and are themselves the object of study. In other occasions, the network defines an underlying notion of proximity or dependence, but the object of interest [...]

11 JUL

Weekly Seminar: “BATS: Network Coding in Action”

11 July 2016 - 11 July 2016

ABSTRACT: Network coding can significantly improve the transmission rate of communication networks with packet loss compared with routing. However, using network coding usually incurs higher computational and storage costs in the network devices and terminals. For example, some network coding schemes require the computational and/or storage capabilities of an intermediate network node to increase linearly [...]

07 JUL

Weekly Seminar: “The use of unmanned aerial vehicle for geo-hydrological processes analysis and monitoring”

07 July 2016 - 07 July 2016
Speaker: Daniele Giordan, Instituto di ricerca per la Protezione Idrogeologica (IRPI), Italy

ABSTRACT: In the remote sensing research, recent technological developments have resulted in increase in field of Unmanned Aerial Vehicles (UAVs), becoming more common and widespread in civil and commercial context. In particular, the development in photogrammetry and in technologies associated (i.e. RLS digital cameras and GNSS/INS systems) allows the use of UAV platforms for various [...]

22 JUN

Weekly Seminar: “Data mining in the IoT era: practical examples and a peek into future developments”

22 June 2016 - 22 June 2016

ABSTRACT: After a decade of studies, theoretical and applied research, wireless sensor networks are entering our lives in a very real way, in the form of the so called Internet of Things. Examples are the increasing number of sensors in cars, home appliances, intrusion detection / smart parking systems and wearable devices. Initial challenges were [...]

25 APR

Weekly Seminar: “Microwave propagation through atmosphere: the role of the tropospheric spatial and temporal variations of water vapour distribution. Analysis of experimental data obtained by times series of SAR images and GPS data”

25 April 2016 - 25 April 2016
Speaker: Giovanni Nico, Ph. D.

ABSTRACT: The problem of how the atmospheric characteristics affect the propagation of microwaves is of main concern in several Remote Sensing techniques, especially for SAR interferometry and GPS signal reconstruction. Microwave propagation through atmosphere is mainly affected by the spatial and temporal variations of water vapour distribution in troposphere. In this talk some experimental results [...]