The ESA (European Space Agency) Space Data Network project focused on the design of architectures and communication protocols for space communication systems linking ground stations and spacecraft. At that time, such systems were still at an early stage of development in Europe.
A key feature of the proposed infrastructure was the use of two geostationary Data Relay Satellites to relay communications between Earth stations and spacecraft, instead of relying on direct ground-to-spacecraft links. This introduced several challenges that were significantly different from those encountered in conventional terrestrial networks. For example, the propagation delay between the spacecraft and Earth continuously changed as the spacecraft moved along its orbit. In addition, during certain orbital segments the spacecraft could not communicate with either relay satellite because neither was visible. During the remaining portions of the orbit, communication required seamless handover between the two relay satellites.
The project was carried out through a collaboration among three researchers: Luciano Lenzini (CNUCE, Italy), Dieter Baum (University of Trier, Germany), and Radu Popescu-Zeletin (GMD/Fokus, Germany).
Luciano Lenzini coordinated the national research project “Methodologies and Tools for the Design of High-Performance Distributed Applications”, funded by the Italian Government and involving 20 Italian universities.
As its title suggests, the project focused on the design of high-performance distributed applications operating over advanced communication networks. Particular attention was devoted to scalable distributed architectures, resource management techniques, synchronization mechanisms, and performance optimization in large-scale computing environments.
The project also fostered extensive collaboration among Italian research groups working in computer networking, distributed systems, and emerging Internet technologies, contributing significantly to the development of a national research community in these fields.
Luciano Lenzini led the Italian research unit of the European Integrated Project EuQoS – End-to-End Quality of Service Support over Heterogeneous Networks (IST-2-004503-IP), funded under the European Union Sixth Framework Programme.
The project addressed Quality of Service (QoS) mechanisms across heterogeneous communication networks, with the objective of providing end-to-end QoS guarantees for multimedia and real-time Internet applications.
Luciano Lenzini coordinated the NADIR project (“Design and Performance Evaluation of Distributed Algorithms and Protocols for Mesh Networks with Quality of Service”), funded by the Italian Ministry of Education, University and Research (MIUR).
The project focused on distributed algorithms and QoS-aware protocols for wireless mesh networks, with particular attention to performance evaluation, scalability, and efficient resource management.
Between 2001 and 2008, Luciano Lenzini collaborated closely with the Nokia Research Center in Helsinki on the design of scheduling algorithms for radio resource allocation in WiMAX systems.
The collaboration focused on:
scheduling algorithms for base stations and user terminals;
performance evaluation through simulation studies.
The research activity resulted in several patents.
Starting in 2006, Lenzini collaborated with the research laboratories of Telecom Italia in Turin on advanced radio resource allocation techniques for LTE and next-generation mobile networks.
The cooperation focused on the design of scheduling algorithms for base stations, relay nodes, and user terminals, and led to several patents.
Starting in 2012, Luciano Lenzini became head of the University of Pisa research unit within the European FET Proactive project CONGAS – Dynamics and Coevolution in Multi-Level Strategic Interaction Games (Objective ICT-2011.9.7).
The three-year project was funded by the European Union Seventh Framework Program and investigated the dynamics and coevolution of strategic interactions in complex multi-level systems.