SERGIO BARBAROSSA

Teoria dei Segnali 2025

Le lezioni di Teoria dei Segnali inizieranno Mercoledì 26 Febbraio 2025 e saranno tenute nelle aule di Via Antonio Scarpa.

L'orario delle lezioni è il seguente:

• Lunedì           ore 14.00-18.00, Aula 11 
• Martedì          ore 14.00-16.00, Aula 11
• Mercoledì       ore 10:00-12:00, Aula 7
• Giovedì          ore 12:00-14:00, Aula 6

La pagnia web collegata al corso è disponibile all'indirizzo

https://sergiobarbarossa.site.uniroma1.it/teaching/teoria-dei-segnali

Per ulteriori domande, gli studenti possono contattarmi via e-mail all'indirizzo 

sergio.barbarossa@uniroma1.it

Il corso ha un link su Classroom, per condividere informazioni tra docente e studenti.

Gli studenti sono pregati di registrarsi al link Teoria dei Segnali 2025. Il codice del corso è

o45zrjn

Grazie a tutti per la collaborazione.

Sergio Barbarossa

Curriculum Vitae
Professor Sergio Barbarossa, PhD

Date and Place of Birth: Dec. 1958, Rome, Italy

Work Address: Sapienza University of Rome, Italy, Dept. of Information Eng., Electronics and Telecommunications, Via Eudossiana 18, 00184 Rome, Italy

Professional Employment History

• Nov. 2019 - present: Senior Research Fellow at Sapienza School for Advanced Studies
• Nov. 2000 - present: Full Professor at Sapienza University of Rome, Italy
• Nov. 1991 - Oct. 2000: Associate Professor at Sapienza University of Rome
• Oct. 1988 - Oct. 1991: Adjunct Professor at the University of Perugia, Italy
• Nov. 1987- August 1988: Research Engineer at the Environmental Research Institute of Michigan, Ann Arbor (USA)
• 1984-1986: Radar System Engineer at Selenia, Rome, Italy

Education

• March 1984: “Laurea" (BSc/MSc) (cum laude) in Electronic Engineering from Sapienza University of Rome, Rome, Italy.
• Sept. 1989: “Doctorate" (PhD) in “Information and Communication Engineering" from Sapienza University of Rome.

Visiting positions

• Spring 1995 and Spring 1997: Visiting Scientist at the School of Engineering, University of Virginia, Charlottesville (USA)
• March-September 1999: Visiting Professor at the Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis (USA)

Awards

• 2020 IEEE Signal Processing Society Best Paper Award for the journal paper S. Sardellitti, G. Scutari, S. Barbarossa, “Joint Optimization of Radio and Computational Resources for Multicell Mobile-Edge Computing”, IEEE Trans. on Signal and Information Processing over Networks, June 2015, pp 89-103.
• EURASIP Fellow for contributions to signal processing for radar remote sensing, sensor and communication networks (2015)
• 2014 IEEE Signal Processing Society Best Paper Award for the journal paper S. Sardellitti, M. Giona, S. Barbarossa, “Fast Distributed Average Consensus Algorithms Based on Advection-Diffusion Processes", IEEE Trans. on Signal Processing, Vol. 58, Feb. 2010, pp. 826-842
• IEEE Distinguished Lecturer (2013-2014)
• IEEE Fellow for contributions to signal processing, sensor networks, and wireless communications (2012)
• EURASIP Technical Achievements Award for contributions on synthetic aperture radars, communications and networks (2010)
• 2000 IEEE Signal Processing Society Best Paper Award for the journal paper A. Scaglione, G.B. Giannakis, S. Barbarossa, “Redundant filterbank precoders and equalizers. Parts I and II", IEEE Trans. on Signal Processing, Vol. 47, Issue: 7, July 1999, pp.1988 - 2006 and 2007-2022.
• Co-author of conference paper that received the Best Student Paper Award: P. Di Lorenzo, S. Barbarossa, “Optimal beamforming for range-doppler ambiguity suppression in squinted SAR systems", IEEE Workshop on Computational Advances in Multi-Sensor Adaptive Processing, Dec. 2011
• Co-author of conference paper that received the Best Student Paper Award: Paolo Di Lorenzo, Sergio Barbarossa and Ali H. Sayed “Bio-inspired Swarming for Dynamic Radio Access Based on Diffusion Adaptation", EUSIPCO 2011.
• Co-author of conference paper that received the Best Student Paper Award: P. Di Lorenzo, S. Barbarossa, “Distributed Resource Allocation In Cognitive Radio Systems Based On Social Foraging Swarms", IEEE Signal Proc. Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2010, Marrakech, June 2010.
• Co-author of conference paper that received the Best Student Paper Award: G. Scutari, S. Barbarossa, D.P. Palomar, “Potential games: A framework for vector power control problems with coupled constraints", ICASSP 2006, Toulouse, May 2006

Publications

Co-author of (peer-reviewed) 300 publications: 95 journal papers, 8 book chapters, 195 conference papers, 2 books: author of "Multiantenna Wireless Communication Systems", Artech House, and co-editor with A. Zanella of the book "Machine Learning and 5G/6G Networks: Interplay and Synergies".
Full list available at https://sergiobarbarossa.site.uniroma1.it/publications

Number of citations (Google Scholar, April 15th, 2025): 19.706.
h-index: 65.

Invited talks:

• Tutorial talk at ICASSP 2025 entitled “Topological Signal Processing and Learning, Aprile 2025”, Hyderabad, India
• Invited speaker at the Oxford University; title of the talk "Topological Signal Processing and Learning", October 25th, 2024.
• Plenary speaker at the Isaac Netwon Institute “Theory and Applications of Hypergraphs” Program; title of talk # 1: “Topological Signal Processing and Learning over Cell Complexes”, Alan Turing Institute, London, July 2024
• Plenary speaker at the Isaac Netwon Institute “Theory and Applications of Hypergraphs” Program; title of talk # 2: “Topological Learning: Dealing with Uncertainties”, Alan Turing Institute, London, July 2024
• Plenary speaker at the 14th International Symposium on Communication Systems, Networks and Digital Signal Processing - CSNDSP 2024 – July 2024; title of the talk: “Semantic Communications Based on Generative AI Models”
• Plenary speaker at the Graph Signal Processing Workshop Delft University, June 2024; title of the talk: “Topological Signal Processing and Learning over Cell Complexes”
• Plenary speaker at the First Mediterranean Workshop on Semantic and Goal-Oriented Communications, Capri, May 2024; title of the talk: “Semantic Communications Based on Generative AI Models”
• Plenary speaker at the Seine AI 2024 Workshop: AI for ICT service: From theory to practice; title of the talk: “Generative AI Models for Semantic Communications”, Paris, Feb. 2024
• Speaker of the tutorial on “Wireless Edge Intelligence: From Edge Learning to Goal-Oriented Communications” Rome, ICC 2023
• Plenary speaker at the 17th International Symposium on Wireless Communication Systems, Berlin, Sep. 2021; title of the talk: " Goal-oriented communications: How to be more efficient by transmitting less"
• Plenary speaker at the Futurewei University Days Workshop, title of the talk: "Wireless Edge Machine Learning", Aug. 2021
• Invited lecturer at the Lake Como School of Advanced Studies on Complex Networks; title of the lecture: “New tools for next generation networks: From topological signal processing to goal-oriented communications ", Como, July, 2021
• Plenary speaker at the Graph Signal Processing Workshop, Madrid, May 2020; title of the talk: "Topological Signal Processing: Uncovering patterns in the data relying on multiway relations"
• Distinsuished speaker at EPFL, Lausanne; title of the talk: "Topological Signal Processing", June 2019
• Invited speaker at IEEE SPS/EURASIP Summer School, Lecce, Italy, May 2019
• Invited lecturer at the Lake Como School of Advanced Studies on Complex Networks; title of the lecture: “Graph-Based Signal Analysis", Como, July 15, 2018
• Invited lecturer at the National PhD School on Electrical Engineering; title of the lecture: From graph theory to signal processing on graphs", Rome, June 13, 2018
• Keynote speaker at EUCNC 2017; title of the talk:”Synergies between Mobile Edge Computing and mmWave Access", Oulu (Finland), June 12, 2017
• Keynote speaker at CLEEN 2017; title of the talk:”Merging millimeter-wave and mobile edge computing technologies in 5G networks: Opportunities and challenges", Torino (Italy), June 22, 2017
• Invited speaker at the Claude Shannon Centennial Birthday; title of talk: “Degrees of Freedom: Uncertainty Principle and Sampling" at the , Rome, July 1st, 2016
• Invited Talk on “Bio-Inspired Signal Processing" at the Technical University of Madrid, July 8, 2014
• Invited talk on “Distributed Sensing Algorithms for Cognitive Networks", at the University Carlos III, Madrid, July 9, 2014
• Plenary Speaker at IEEE PIMRC - Workshop on Cooperative and Heterogeneous Cellular Networks, title of the talk: “Femtocloud: Jointly optimal allocation of communication/computation resources for mobile cloud computing", London, September 2013
• Plenary Speaker at the IEEE Signal Processing School, title of the talk: “Bio- Inspired Signal Processing", Sep. 2013, Riotorto, Italy
• Invited Talk on “Bio-Inspired Signal Processing" at the Technical University of Darmstadt, Jan. 2012.
• Invited Talk on “Joint Optimization of Collaborative Sensing and Resource Allocation in Cognitive Networks" at the Technical University of Darmstadt, Feb. 2012.
• Plenary Speaker at the Femtocell Winter School, title of the talk: “Distributed Interference Management in Femtocell Networks", February 2012, Barcelona
• Tutorial Speaker at EURASIP 2011 on “Bio-Inspired Signal Processing"
• Plenary speaker at IEEE Signal Processing Advances on Wireless Communications (SPAWC 2009)
• Invited speaker at NSF Workshop on “Distributed Processing over Cognitive Networks, University of California at Los Angeles (Nov. 2009)
• Plenary speaker at IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM 2008)

Professional Services

• Guest Editor of the Special Issue on "Network Topology Inference" on the IEEE Transactions on Signal and Information Processing over Networks, 2019
• Technical co-Chair of the European Signal Processing Conference (EUSIPCO 2018), Rome, Italy, September 3{7, 2018.
• Associate Editor of IEEE Transactions on Signal and Information Processing over Networks (2014-2018)
• Member of the Editorial Board of IEEE Signal Processing Magazine (2011- 2014)
• Technical co-Chair of the XIV IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2013, Darmstadt, Germany, June 16{19, 2013.
• Guest Editor of the special issue on “Adaptation and Learning over Complex Networks" IEEE Signal Processing Magazine, 2013.
• Guest Editor of the special issue on “Adaptation and Learning over Complex Networks" IEEE Journal on Selected Topics in Signal Processing, 2013.
• Associate Editor for the IEEE Transactions on Signal Processing (1999-2001 and 2004-2006)
• Nov. 2004 - Oct. 2010: Coordinator of PhD Graduate Studies in Information
• and Communication Engineering at Sapienza University of Rome
• Member of the IEEE Signal Processing for Communications Technical Committee (1999-2004).
• General Chairman of the IV IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2003, Rome, Italy, June 15{18, 2003.
• Guest Editor of the IEEE Journal on Selected Areas in Communications Special Issue on “Optimization of MIMO Transceivers for Realistic Communication Networks: Challenges and Opportunities", 2006.
• Guest Editor of the EURASIP Journal of Applied Signal Processing Special Issue on “MIMO Communications and Signal Processing", 2005.
• Technical Committee Member of SSAP 1996, , ICASSP 2002, ISSPE 2003, EUSIPCO 2004, IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC 2004), SPAWC 2005, IWWAN 2005, WNC3 2008, NecSys 2009, CIP 2010, International Workshop on Wireless Networks: Communication, Cooperation and Competition (WNC3 2010), European Workshop on Broadband Femtocell Networks (2011), EUSIPCO 2012, WCNC 2012 Workshop on Future Green Communications, IEEE 4th Int. Workshop on Heterogeneous and Small Cell Networks (HetSNets 2012), 2012 International WDN Workshop on Cooperative and Heterogeneous Cellular Networks (WDN-CN2012), EUSIPCO 2013, First International Workshop on Cloud Technologies and Energy Efficiency in Mobile Communication Networks (CLEEN 2013), SPAWC 2013, WCNC 2014: Cloud Technologies and Energy Efficiency in Mobile Communication Networks (CLEEN 2014), ICASSP 2014
• PhD committee member at University of Nice (France), University of Nantes (France), Chalmers Institute of Technology, Goteborg (Sweden), Universitat Politecnica de Catalunya, Barcelona (Spain), Technical University of Helsinki (Finland), CEA-LETI, Grenobles (France), Ecole Polytechnique Federal de Lausanne (Switzerland)
• Lecturer of a PhD course at the Universitat Politecnica de Catalunya (UPC), Barcelona (Spain) (Dec. 2002 and July 2008)
• Reviewer for IEEE Transactions on Signal Processing, IEEE Transactions on Information Theory, IEEE Transactions on Communications, IEEE Transactions on Aerospace and Electronic Systems, IEEE Transactions on Image Processing, Proceedings of IEE, IEEE Journal on Selected Areas in Communications, IEEE Transactions on Wireless Communications, Electronic Letters, ...

Teaching

Current courses:

• Signal Theory (undergraduate): Deterministic signals, probability theory, random processes, introduction to information theory
• Signal Processing for Machine Learning (graduate): signal processing over graphs, Graph Fourier Transform, smoothing, sampling, and data compression on graphs; statistical models based on graphs, prediction and model selection on graphs; distributed optimization over networks; distributed inference: estimation, detection, clustering, anomaly detection

Previous courses:

• Distributed Optimization over Complex Networks (graduate): algebraic graph theory, graph feature extraction, operations on graphs, distributed optimization over networks, examples of application: wireless sensor networks, TLC networks
• Advanced Digital Communications (graduate): MIMO channel modeling, OFDM systems, MIMO systems, space-time coding
• Detection and Estimation Theory (undergraduate): Basic detection and estimation theory, applications to remote sensing and to wireless communication networks
• Remote Sensing (graduate): Radar remote sensing, radar systems, radar equation, clutter cancellation, synthetic aperture radar

Research

Current research activities

6G networks

S. Barbarossa is currently active on semantic and goal-oriented communications and on topological signal processing and learning. The major contributions of S. Barbarossa to this field are the proposal of a semantic communication system based on generative artificial intelligence tools, like variational autoencoders and denoising diffusion probabilistic models, and the joint optimization of communication, computation and caching resources in the edge cloud of the networks.

Topological Signal Processing and Learning

A key methodology to extract information from the data is to infer a graph topology reflecting similarities among data. S. Barbarossa has contributed to this new field by extending the approach to higher order topological spaces, such as simplicial complexes and cell complexes. Building on the tools of topological signal processing, he is also contributing to design machine learning tools based on higher order representations.

Past research activities

The past research activities have focused on the following broad areas: radar imaging, wireless communications, MIMO systems, time-frequency analysis, biologically-inspired algorithms.

Project Grants

Current project grants

• National project entitled “Network Intelligence”, as part of the Italian research program RESTART, supported by the National Recovery and Resilience Plan (NRRP) funded by Next Generation EU program: role in the project: National coordinator of the “Network Intelligence” project and Sapienza representative (total budget of RESTART: 116 MEuro, budget for Sapienza: 3.9 MEuro);
• Project entitled “Topological Signal Processing and Semantic Communications”, joint project between Sapienza University of Rome and Huawei France; role in the project: leader of Sapienza team
• European Project “Distributed Artificial Intelligence-Driven Open & Programmable Architecture for 6G Networks” (ADROIT-6G), funded by the 6G SNS EU research program; role in the project: leader of Sapienza team

Past project grants

• Europe/Taiwan H2020 Project 5G-Connected Industries (5G-CONNI); Start date: 01/07/2019, Duration 36 months; Role in the project: Principal Investigator of Sapienza and WP leader; Total budget: 2,082,082.50 Euro
• H2020 Project RISE-6G; Role in the project: CNIT Investigator
• PRIN Project "Liquid Edge", Duration: 36 months; Role in the project: National Coordinator
• Europe/Japan H2020 Project "Millimeter-wave Edge Cloud as an Enabler for 5G Ecosystem (5G-MiEdge)"; Start date: 01/07/2016, Duration: 36 months; Role in the project: Technical Manager (Scientific Coordinator); Total funded budget: 1,494,773 Euro
• Intel Deutschland funded project "Machine Learning and MEC for Terminals"
Start date: 01/03/2018, Duration: 24 months
Role in the project: Technical Manager (Scientific Coordinator)
Funding: 60,000 Euro
• European Project Distributed computing, storage and radio resource allocation over cooperative femtocells (TROPIC), funded by the European Union within the Seventh Information Society Technology Framework
Start date: 01/09/2012, Duration: 30 months
Role in the project: Technical Manager (Scientific Coordinator)
Total budget: 4,581,875 Euro, Funded budget: 3,390,000 Euro
• European Project Femtocell-based network enhancement by interference management and coordination of information for seamless connectivity (FREEDOM), funded by the European Union within the Seventh Information Society Technology Framework
Start date: 01/01/2010, Duration: 24 months
Role in the project: Technical Manager (Scientific Coordinator)
Total budget: 3,445,895 Euro, Funded budget: 2,529,985 Euro
• European Project Simulator of MTI System (SIMTISYS), funded by the European Union within Theme Space: Developing Pre-Operational Service Capabilities for Maritime Surveillance
Start date: 01/06/2011, Duration: 24 months
Role in the Project: Leader of Sapienza University of Rome team
Total budget: 2,468,978 Euro, Funded Budget: 1,643,701 Euro
• European Project Enabling Technologies for Advanced Radio in Europe (ETARE) funded by the European Defense Agency
Role in the Project: Sub-contractor from Thales Italia, leader of Sapienza University of Rome team
• European Space Agency Project ExoMars, for the radar assisted landing on Mars
Role in the Project: Sub-contractor from Thales Alenia Space, leader of Sapienza University of Rome team
• European Project Wireless Sensor Networks with Self-Organization Capabilities for Critical and Emergency Applications (WINSOC), funded by the European Union within the Sixth Information Society Technology Framework
Start date: 01/09/2006, Duration: 30 months
Role in the project: Technical Manager (Scientic Coordinator)
Total budget: 3,864,672 Euro, Funded budget: 2,443,976 Euro
• Squinted Enhanced Spotlight SAR, array design for performance optimization of COSMO-Skymed, contract funded by Thales Alenia Space
Role in the project: Principal Investigator
• European Project Self Configurable Air Interface (SURFACE), funded by the European Union within the Sixth Information Society Technology Framework
Total budget: 2,835,410 Euro, Funded budget: 1,700,000 Euro
Role in the project: Leader of University of Rome team
• European Project ResOurce Management and AdvaNced Transceiver AlgorIthms for Multihop NetworKs (ROMANTIK) funded by the European Union within the Fifth Information Society Technology framework
Total budget: 3,890,428 Euro, Funded budget: 2,104,000 Euro
Role in the project: Leader of University of Rome team
• European Project Smart Antennas Technologies for Universal bRoadband Networks (SATURN) funded by the European Union within the Fifth Information Society Technology Framework
Funded budget: 80,000 Euro
Role in the project: Leader of University of Rome team
• Project High Resolution - Wide Swath Acquisition Techniques, contract funded by Thales Alenia Space
Role: Principal investigator
• Project Blind Classification of Digital Modulations, contract funded by Army Research Laboratory (USA)
• Project Eigenfunctions of Time-Varying Systems, contract funded by Army Research Laboratory (USA)
• Project Distributed Space-Time Coding, contract funded by Army Research Laboratory (USA)
• Project Sensor Networks with Minimum Energy Consumption, contract funded by Army Research Laboratory (USA)
• Project Shuttle Imaging Radar (SIR), funded by NASA/ASI (Italian Space Agency)
Role: Participant, with the specific task of designing the X-band SAR flown on the space shuttle (SIR-C mission)
• Principal Investigator in several Italian projects, funded by the Italian Ministry of Education, on wireless communication systems