Giovanni Giambene of University of Siena

Quality of Service (QoS) is a stringent need for future networks. It is also related to user satisfaction in terms of Quality of Experience (QoE). Several standardization efforts have been made to define QoS parameters and reference values for different traffic classes. This study will consider the QoS levels according to both 3GPP TS 23.501 and ITU-T Y.151 requirements. This lecture will survey the key mechanisms available today to support QoS in IP-based networks: Integrated Services (IntServ) and Differentiated Services (DiffServ). As for IntSer, deterministic queuing will be applied to allocate path resources to control the maximum delay and avoid packet losses (token-bucket model). Then, Diffserv and the related class-based queuing model will be presented.

Biography:

Giovanni Giambene received the Dr. Ing. degree in Electronics in 1993 and the Ph.D. degree in Telecommunications and Informatics in 1997, both from the University of Florence, Italy. From 1994 to 1997, he was with the Electronic Engineering Department of the University of Florence, Italy. He was Technical External Secretary of the European Community COST 227 Action (“Integrated Space/Terrestrial Mobile Networks”). He also contributed to the SAINT Project (“Satellite Integration in the Future Mobile Network”, RACE 2117). From 1997 to 1998, he was with OTE (Marconi Group) in Florence, Italy, working on a GSM development program.

In 1999, he joined the Department of Information Engineering and Mathematical Sciences of the University of Siena, Italy. At present, he is associate professor, teaching the first-level course on Fundamentals on Telecommunications and the advanced course on Networking at the University of Siena. From 2000 to 2003, he contributed to the EU FP5 “Personalised Access to Local Information and services for tourists” (PALIO) IST Project. He was vice-Chair of the COST 290 Action (2004-2008), entitled “Traffic and QoS Management in Wireless Multimedia Networks” (Wi-QoST). He participated in the projects: (i) the SatNEx I & II network of excellence (EU FP6, 2004-2009) and SatNEx III&IV (ESA 2010-2018) as work package leader on radio access techniques, cross-layer air interface design, and network coding techniques for satellite systems; (ii) the EU FP7 Coordination Action “Road mapping technology for enhancing security to protect medical & genetic data” (RADICAL) as work package leader on security and privacy; (iii) the COST Action IC0906 (2010-2014) “Wireless Networking for Moving Objects” (WiNeMO) as national representative; (iv) the EU FP7 Coordination Action RESPONSIBILITY coordination action. At present he is involved in the ESA IIT ROMANTICA project and the ESA SatNEX V project. Giambene is IEEE senior member. Since 2015, he is editor of IEEE Transactions on Vehicular Technology. Since 2019, he is editor of IEEE Wireless Communications Magazine. He has published the following books: G. Giambene, “Queuing Theory and Telecommunications: Networks and Telecommunications”, Springer, April 2014 (2nd edition available with solution manual online - 2014; see also sample pages here); G. Giambene (Ed.), “Resource Management in Satellite Networks: Optimization and Cross-Layer Design”, Springer, April 2007. His research interests deal with wireless and satellite networking, cross-layer air interface design, IoT for 5G, transport layer performance, privacy and security for medical data.

Address:Italy