ACM MSWiM 2016


The 19th ACM MSWiM Conference includes the following tutorials:

Title: "Performance Evaluation of IEEE 802.11-based Multihop Wireless Networks: From modeling to experimentations"

Topic and description: This tutorial is devoted to the performance evaluation of multihop wireless networks based on IEEE 802.11. The goal is to discuss the different possible approaches for evaluating this kind of networks and the main pitfalls that must be avoided. The tutorial is divided in three parts. The first one concerns the modeling of IEEE 802.11-based multihop wireless networks, specifically when the network size is limited. The challenge is to design a simple model while being realistic enough. A hierarchical model will be presented. The second part concerns the simulation of IEEE 802.11-based multihop wireless networks. The main shortcomings to avoid will be discussed. The third part concerns the experimental evaluation of these networks. We will discuss the tools that can be developed to evaluate parameters useful to experimentations of multihop wireless networks of limited size.

Speaker: Dr. Isabelle Guérin Lassous

Short Bio: Isabelle Lassous is currently a professor in the computer science department of Université Claude Bernard Lyon 1. She conducts her research in the LIP laboratory (UMR 5668, ENSL, CNRS, Inria, UCBL). Before this position, she obtained her PhD in computer science in 1999 in Université Paris Descartes and was an Inria researcher from 2000 to 2006.
Her research concerns networks, and specifically wireless newtorks. She is interested in understanding the performance of wireless networks as in designing adapted solutions to these networks. She has co-authored around eighty papers, and she is currently in the editorial board of the international journals Computer Communications, Ad Hoc Networks and Discrete Mathematics & Theoretical Computer Science.

Title: "Virtualization and Network Slicing Solutions in 5G Wireless Networks"

Topic and description: Network virtualization has led to significant benefits in terms of infrastructure and operational costs for 5G network design but, at the same time, it has brought significant technical challenges. On the one hand, the network virtualization paradigm revolutionizes the networking perspective by abstracting and separating logical network behaviors from the underlying physical network resources. This significantly impacts on the reduction of the operations expenditures which, in turn, drive the network operators to foster the programmability and automation of network facilities in order to enable the evolution of a wider range of business services. On the other hand, the separation and creation of a network of virtualized functions, which are flexibly deployed into the network, gives rise to technical issues that must be technologically faced.
The pivotal aspect of the network virtualization is represented by a newly evolved concept of network slicing, which paves the road towards an automatic and flexible solution in charge of allocating a specific amount of isolated network resources, tailored for particular service requirements. Network resources are meant as computing and storage capacity, virtualized network functions, physical radio resources and so on. Therefore, the technical challenges rely on the overall process definition, such as network slice instantiation and maintenance, orchestration and allocation of shared and isolated resources, communication interfaces amongst different network slices.
This tutorial focuses on the evolutionary flow of the network virtualization and network slicing operations through several standard definition activities in the last decade. In particular, we shed light on how network slicing operations become feasible in the next generation mobile networks by boiling down the overall overhead and complexity of a full network deployment. We analyze the state-of-the-art solutions proposed to realize the first example of network slicing, highlighting the hardware limitations of the current solutions and the real potentiality of advanced virtualization approaches. We also show the first attempts of integrating the network slicing concept into the prior 5GPP project architectures and the future research directions to embrace new open-source function/resource allocation procedures.

Speakers: Dr. Vincenzo Sciancalepore and Dr. Konstantinos Samdanis

Short Bios: Vincenzo Sciancalepore received his M.Sc. degree in Telecommunications Engineering and Telematics Engineering in 2011 and 2012, respectively, whereas in 2015, he received a double Ph.D. degree from Politecnico di Milano and Universidad Carlos III de Madrid. From 2011 to 2015 he was Research Assistant at IMDEA Networks, focusing on inter-cell coordinated scheduling for LTE-Advanced networks and device-to-device communication. Currently, he is a Research Scientist at NEC Europe Ltd. in Heidelberg, focusing his activity in the area of network virtualization and network slicing challenges. He has been involved in a number of European Projects and several published international research papers.

Konstantinos Samdanis received his Ph.D. and M.Sc. degrees in mobile communications from Kings College London. He is a senior researcher and a backhaul standardization specialist with NEC Europe, Germany. Konstantinos is active in 5G NORMA H2020 in the area of network architecture and orchestration, and is also involved in standardization for broadband converged networks (BBF) for 5G and 3GPP SA2 NextGen in the area of network slicing. In the past Konstantinos provided a series of tutorials on energy efficiency and green communication in a number of IEEE conferences including VTC, CCNC, NOMS, etc. and invited talks/summer school seminars on the same topic, while he is the editor of the Green Communications: Principles, Concepts and Practice book from Wiley.