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DESSERT - Distributed interface selection for seamless terminal mobility across wireless heterogeneous networks

Weekly Seminar

10 March 2010
Speaker: Paolo Dini, Ph.D., Jaume Nin, Research Engineer
Place: CTTC Auditorium/ 10:00h

This seminar aims to provide an overview of the DESSERT CISCO grant. The project studied algorithm, for multi-interface mobile devices, to select the most appropriate network interface to seamlessly send/receive traffic.

ABSTRACT: This seminar aims to provide an overview of the DESSERT CISCO grant.  Nowadays mobile devices are equipped with multiple interfaces both wireless and wired to receive/send information through a variety of networks, each one designed with a different access technology. In this respect, a key issue is the choice of the right interface in relation to the QoS constraints of the required services, user preferences (e.g. price) and battery lifetime, also in order to achieve a balanced load in the whole heterogeneous system.The DESSERT CISCO grant aimed to study techniques for the provision of the information needed for a multi-mode mobile and wireless device to select the most appropriate network interface to seamlessly send/receive its traffic at each moment of the communication as well as to define the interface selection algorithm. The solution proposed the use of SIP (Session Initiation Protocol) Mobility for the execution of the interface switching. An interface selection algorithm based on sensing the wireless links, has been designed to (i) estimate the quality perceived by the user and (ii) to take the decision whether to switch or not, accordingly. The interface selection algorithm has been integrated with the SIP Mobility scheme, so as to obtain an automatic selection of the most appropiate interface directly triggered by the mobile device. The proposed solution has been experimentally tested in a heterogeneous platform composed of IEEE 802.11 WLAN and 3G cellular network, built within the EXTREME testbed. The seminar will be concluded with a proof-of-concept demo of the introduced interface selection scheme.
 

SPEAKERS: Paolo Dini (Roma, Italia) received the "laurea" degree in Electronic Engineering in 2001 and the PhD degree in Telecommunications in 2005, both from the Università di Roma "La Sapienza". In 2001 he obtained a three year fellowship from the Information and Communication Theory (INFOCOM) department as a PhD student. From 2001 to 2005 he worked as a research assistant in the Computer Science and Systems (DIS) and Information and Communication Theory (INFOCOM) departments of Università di Roma "La Sapienza". In 2005 he worked with the Research Center on Software Technologies (RCOST) as a research assistant. In the same year he was also an assistant professor at INFOCOM department lecturing the course of "Comunicazioni Elettriche". He participated in several research projects funded by EU such as SUITED, VIRTUOUS, SAILOR (within IST program), NATACHA (within GROWTH program) and IMAGES (within EUREKA/CELTIC program) as well as by Italian companies such as "Large Scale Ad hoc Networks" (Marconi Selenia) and "Video over Wireless" (Vodafone). In  February 2006 he joined IP Technologies Area of CTTC as a post doc researcher. Since November 2006 he is a Research Associate in the IP Technologies Area. His research interest areas include wireless networking, protocol analysis, quality of service and resource management in mobile networks.

Jaume Nin (Barcelona, Spain, 1982) obtained his Telecommunications Engineering degree from the Technical University of Catalonia (UPC) on 2007 after completing his Master Thesis about autonomous physical resource block allocation algorithms on the 3GPP Long Term Evolution Downlink. He wrote this Master Thesis as guest student at Aalborg Universitet (AAU) in collaboration with Nokia Siemens Networks Denmark. Before joining the IP Technologies group of the CTTC in October 2008 as Network Software Engineer, he worked as Software Engineer at Abiquo. His specific occupations are research and development of distributed interface selection algorithm for seamless terminal mobility across wireless heterogeneous networks.

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