Workshop on: Efficient service distribution in next generation cloud networks

Transcription

1 Tuesday 10 February 2015, Time: Room SOFTEL, Floor I, Ed. 3/A DIETI - Via Claudio, 21 NAPOLI Workshop on: Efficient service distribution in next generation cloud networks Schedule 9 am -10 am Dr. Jaime Llorca Wireless Edge Caching: Opportunities and Practical Challenges 10:00 am -10:30 am Prof. Simon Pietro Romano A quick dive into ongoing research activities within the COMICS research group Coffee Break 11:00 am -11:30 am Prof. Paola Festa On Some Special Network Flow Problems: The Shortest Path Tour Problems 11:30 am -12:00 am Proff. Stefano Avallone, Roberto Canonico and Giovanni Di Stasi Virtual network embedding in wireless mesh networks through reconfiguration of channels 12:00 am -12:30 am Prof. Sabato Manfredi Decentralized Queue Balancing and Differentiated Service Schemes Based on Cooperative Control Concept 12:30 am -13:00 am Workshop Wrap-up Session: closing comments Info: For more information see or contact Prof. Antonia Tulino - tel antoniamaria.tulino@unina.it

2 Dr. Jaime Llorca Network Energy Program, Bell Labs, Alcatel-Lucent, Holmdel, NJ Department of Network Information Flow ttps:// Wireless Edge Caching: Opportunities and Practical Challenges Abstract: (Video is responsible for 66% of the 100x increase of wireless data traffic predicted for the next few years. Traditional methods for network capacity increase are expensive and do not exploit the unique features of video traffic. This talk presents a novel video delivery paradigm that capitalizes on the following two key properties: (i) video shows a high degree of asynchronous content reuse, and (ii) storage is the fastest-increasing resource in modern hardware. Based on these properties, we suggest caching at the wireless edge (e.g., at small cell base stations, WiFi access points, and/or user devices) combined with short-range D2D communications and/or coded multicasting. We present both caching placement and delivery schemes that fully exploit the aggregate wireless caching capacity and have the potential of turning Moore s law into a bandwidth multiplier: the per-user throughput increases linearly, or even super-linearly with the local cache size. We show that the proposed schemes are information-theoretic order-optimal and identify the regimes in which they exhibit order gains compared to state-of-the-art approaches. We then focus on the coded multicasting scenario and show that the promising multiplicative caching gain requires splitting all the files into a number of packets that grows exponentially with the number of caches, leading to delivery schemes with exponential-time complexity. To overcome this limitation, we design a novel greedy local graph-coloring delivery scheme that allows preserving a significant portion of the multiplicative caching gain with tractable polynomial-time complexity CV: Jaime Llorca received his B.S. degree in Electrical Engineering from the Polytechnic University of Catalonia, Barcelona, Spain, in 2001, and his M.S. and Ph.D. degrees in Electrical and Computer Engineering from the University of Maryland, College Park, in 2003 and 2008, respectively. After a two year postdoc at the Center for Networking of Infrastructure Sensors (CNIS) at the University of Maryland, he joined Bell Labs, Alcatel- Lucent in 2010, where he is currently a Member of the Technical Staff in the Network Energy Program. His research interests include energy efficient networks, distributed cloud networking, content distribution, resource allocation, network information theory, and network optimization.

3 Prof. Simon Pietro Romano DIETI A quick dive into ongoing research activities within the COMICS research group Abstract: The talk will briefly touch the following topics: 1) advanced network architectures; 2) network and infrastructure security; 3) real-time multimedia applications and infrastructure; 4) SDN-enabled services in the cloud; 5) standardization activities within the Internet Engineering Task Force (IETF). CV: Simon Pietro Romano is both a University Professor and a startupper. He teaches Computer Networks and Telematics Applications at the University of Napoli "Federico II." He is the cofounder of Meetecho, a startup and University spin- off dealing with WebRTC- based unified collaboration. He actively participates in IETF standardization activities, mainly in the Real- time Applications and Infrastructure (RAI) area.

4 Prof. Paola Festa Department of Mathematics and Applications "R. Caccioppoli" On Some Special Network Flow Problems: The Shortest Path Tour Problems Abstract: The shortest path tour problems are special network flow problems recently proposed in the literature that have originated from applications in combinatorial optimization problems with precedence constraints to be satisfied, but have found their way into numerous practical applications, such as for example in warehouse management, control in robot motion planning, and communications. In this talk, several variants belonging to the shortest path tour problems family will be considered and the relationship between them and special facility location problems examined. Future directions in shortest path tour problems research will be also discussed. CV: Paola Festa obtained her Ph.D. degree in Operations Research in She is currently Associate Professor in Operations Research at the University of Napoli FEDERICO II, where since 2002 she has been teaching Programming (undergraduate degree), Operations Research (undergraduate degree), and Combinatorial Optimization (Master degree). She is in the scientific committee of the Ph.D. Program in Operations Research (University of Calabria), and of the Ph.D. Program in Mathematics and Computer Science (University of Napoli FEDERICO II). She has been in the scientific committee of the Ph.D. Program in Computational Biology and Bioinformatics (University of Napoli FEDERICO II). Since 1999, she has been frequently Research Scholar at several national and international research institutions, including CNRs, MIT Lab. for Information and Decision Systems (USA), AT&T Labs Research (USA), and Department of Industrial and Systems Engineering of the University of Florida (USA). She is author/co- author of more than 80 publications appeared in international journals, books, and peer- reviewed conference proceedings.

5 Prof. Roberto Canonico DIETI Virtual network embedding in wireless mesh networks through reconfiguration of channels Abstract: Network virtualization is gaining a lot of interest from the research community thanks to its ability to support new networking paradigms and experimental scenarios. Virtual network embedding (VNE) is a key step for enabling network virtualization and its efficiency allows to maximize the profits of the physical network provider. We have investigated the Virtual Network Embedding problem in the case in which the substrate network consists of a multi- radio IEEE Wireless Mesh Network. In such scenario, bandwidth of a wireless link depends on the rate used to transmit but also on the number of wireless links that use the same channel, because of interference. Exploiting such a property, we propose a heuristic for the online, i.e. requests are not known in advance, VNE problem that is able to increase the profit of the substrate network provider by fictitiously augmenting the network resources and then reconfiguring the channels to avoid congestion (Joint work with Stefano Avallone e Giovanni Di Stasi) CV: Roberto Canonico è Professore Associato (SSD ING- INF/05) presso la Facoltà di Ingegneria dell Università di Napoli "Federico II" dal novembre 2005, ed afferisce al Dipartimento di Informatica e Sistemistica (DIS). Tra il 2000 ed il 2001, è stato Visiting Research Associate presso l Università di Lancaster in Gran Bretagna, contribuendo alle attività scientifiche del Distributed Multimedia Research Group (DMRG). Tra il 2002 ed il 2004 è stato Ricercatore Universitario presso il Dipartimento di Informatica e Sistemistica dell'università di Napoli Federico II. Roberto Canonico è membro della Rete di Eccellenza CONTENT (finanziata nel Sesto Programma Quadro della Comunità Europea). Dal 2006, Roberto Canonico è anche responsabile per il Consorzio Interuniversitario Nazionale per l'informatica (CINI) dei progetti europei ONELAB e ONELAB2. Roberto Canonico è autore di numerosi articoli scientifici presentati a conferenze internazionali o pubblicati su riviste scientifiche nazionali ed internazionali, ed è editor di un volume della collana LNCS Springer.

6 Prof. Sabato Manfredi DIETI Decentralized Queue Balancing and Differentiated Service Schemes Based on Cooperative Control Concept Abstract: CV: