Advances and challenges in network virtualization and softwarization

Giuseppe BianchiUniversità degli studi di ROMA TOR VERGATA, Italy
giuseppe.bianchi@uniroma2.it

Software Defined Networking (SDN) and Network Function Virtualization (NFV) are emerging breakthrough trends in networking. Their promise is to change the way networks and services are conceived and operated, by dramatically simplify the management and control of large scale heterogeneous networks, by permitting faster launch of new services, and by introducing an unprecedented level of (programmatic) flexibility and agility. The session will discuss recent advances in the SDN/NFV arena as well as current limitations and open research challenges.

Speakers

  • Nicola Bonelli (University of Pisa, Italy), “Functional network programming”
  • Luigi Rizzo (University of Pisa, Italy), “Software Packet Scheduling at Hardware Speeds”
  • Francesca Paradiso (Univ. of Firenze, IT), “VNF Placement in an SDN-based NFV Architecture”
  • Fabian Schneider (NEC, Germany), “Extending OpenFlow for stateful flow processing and in-switch packet generation”
  • Salvatore Pontarelli (University of Tor Vergata, Italy), “From monolitic to programmable packet processing actions in OpenFlow”
Slides

Simultaneous wireless information and power transfer

Luc Vandendorpe – Université catholique de Louvain, Belgium
luc.vandendorpe@uclouvain.be

SWIPT is an emerging paradigm consisting in having wireless networks delivering simultaneously and wirelessly both information and power to terminals. The emergence of small information cells makes wireless power transfer more and more efficient. The goal of this session is to discuss recent advances in SWIPT links and networks, including waveform design and optimisation, optimized resource allocation in coordinated or distributed approaches, impact of implementation issues on the network design and modelling of SWIPT network by means of stochastic geometry.

Speakers

  • Robert Heath (The University of Texas at Austin, US), “Simultaneous Wireless Information and Power Transfer at Millimeter Wave”
  • Bruno Clerckx (Imperial College, UK), “Boosting the Efficiency of WPT and SWIPT through Waveform Design and Optimization”
  • Dushantha Nalin K. Jayakody (National Research Tomsk Polytechnic University (TPU), Russia and University of Tartu, Estonia), “SWIPT in Massive MIMO-enabled 5G Wireless Systems: Opportunities and Challenges”
  • Ivan Stupia (UCL, Belgium), “Multi-objective Resource Allocation Optimization for SWIPT in Small-cell Networks”
  • Marco Di Renzo (CNRS, France), “Feasibility Analysis of SWIPT MIMO Cellular Networks”
Slides

Beyond 5G: more than “more data”

Tony Quek, Guido FerranteSUTD, Singapore
 tonyquek@sutd.edu.sg gcf@ieee.org

Improving coverage and data rate was the main theme in the 4G evolution. While this trend will continue towards 5G and likely beyond it, both number and diversity of nodes connected to the network will increase. Beside humans requiring wire-like performance wirelessly, communicating machines, or “things,” will generate a huge amount of data that needs to be supported. The two above issues require several paradigm shifts from the current network design. This session discusses advances towards 5G and beyond that will be able to tackle the vision of an ever more diverse and interconnected network.

Speakers

  • Guido Carlo Ferrante (SUTD, Singapore), “Timing channels: More than just payload in IoT”
  • Giovanni Geraci (Bell Labs Nokia, Ireland), “Massive MIMO: more than “more antennas”
  • Marios Kountouris (HUAWEI, France), “Exploiting Full Duplex Communication for 5G Wireless Networks”
  • Nikolaos Pappas (Linköping University, Sweden), “Throughput with Delay Constraints of a Share Access Network with Priorities”
Slides

Caching in wireless networks

Mari Kobayashi – CENTRALESUPELEC, France
 mari.kobayashi@supelec.fr

Caching popular contents at (or close to) the end-users in wireless networks has been considered as one of key enabling techniques for 5G.  Albeit conceptually appealing, such technique calls for a number of challenging problems due to limited resource for storage as well as for underlying network links. The scope of this special session is to present the latest advances in this area and discuss the major challenges related to the design and the analysis of the distributed caching systems both from theoretical and practical points of view.

Speakers

  • Kenza Hamidouche (CentraleSupélec, France) ‘Breaking the Economic Barrier of Caching in Cellular Networks: Incentives and Contracts’
  • Giuseppe Caire (TU Berlin, Germany), “On the design of wireless PHY layer solutions in the presence of caching”
  • Mari Kobayashi (CentraleSupelec, France), “On the complementary roles of massive MIMO and coded caching”
  • Petros Elia (EURECOM, France), “Duality and synergy between coded-caching and advanced PHY”
  • G. S. Paschos (Huawei, FR), “Popularity learning and cache optimization in wireless networks”
Slides

Experimental methods in Wireless Communications

Raymond Knopp – Eurecom, France
 raymond.knopp@eurecom.fr

The speed of innovation in wireless networks is staggering and with the onset of 5G and the new services that are envisaged this will surely continue well beyond 2020.  Experimental methods are fundamental to drive this innovation and to allow universities and research centers to have an impact on the industrial process.  The objective of this session is to present cutting-edge experimental methods for prototyping 5G and beyond-5G wireless networks. Topics in both radio and optical wireless access will be covered in addition to software architectures for distributed computing for wireless infrastructure.

Speakers

  • Raymond Knopp (EURECOM, France), “Challenges in Data-Center Technologies for Distributed Radio Signal Processing”
  • Ivan Seskar (Rutgers University, US), “Experimental Platforms as Enablers for Rapid Technology Innovation”
  • Arnaldo Oliveira (IT-Aveiro, Portugal), “Open C-RAN Lab Testbed”
  • Javier Morgade (Fraunhofer IIS, Germany) “OpenAirInterface based measurement methodology for the Evolved Multimedia Broadcast Multicast Service (eMBMS) characterization in LTE-A experimental network “
Slides

Traffic Aware Interference Management in Dense TDD Networks

Antti Tölli – University of Oulu, Finland
 antti.tolli@ee.oulu.fi

Dirk Slock Eurecom, France
 Dirk.Slock@eurecom.fr

Deployment of a large number of small cells is necessary to complement basic macro-cell coverage and to provide sufficient area spectral efficiency in future heterogeneous networks. In small cell scenarios, the amount of instantaneous uplink and downlink traffic may vary significantly with time and among the adjacent cells. In such cases, Dynamic TDD provides vastly improved overall resource utilization by dynamically changing the amount of resources allocated to each direction at each time instant. Moreover, the future heterogeneous network must support in a controllable manner various types of direct communications, e.g., network controlled device-to-device (D2D) and machine-to-machine (M2M) communications. At the same time, some of the nodes may be equipped with a large (massive) antenna array that can simultaneously serve multiple users and suppress a large number of undesired interference sources. In such a complex operating environment, advanced interference and mobility management across different transmission/reception points with overlapping coverage becomes of utmost importance. Interference coordination is especially vital for cell-edge users, who in the end dictate the dimensioning of the wireless networks. The target of the this session is to provide a holistic view of future (5G and beyond) heterogeneous wireless networks based on dynamic traffic aware TDD systems, especially from the perspective of massive MIMO deployment, channel state acquisition, pilot assignment, traffic aware resource allocation and coordinated interference management.

Speakers

  •   Michael Honig (Northwestern University, US), “Traffic-Driven Resource Allocation over Slow Time-scales”
  •   Antti Tölli (OULU, Finland), “UL/DL Mode Selection and Transceiver Design for Dynamic TDD”
  •   Emil Björnson (Linköping University, Sweden), “User Association in Massive MIMO with Heterogeneous Load”
  •   Elisabeth de Carvalho (Aalborg University, Denmark), “Random Access Protocols for Massive MIMO”
  •   Dirk Slock (EURECOM, France), “Deterministic Limits in Massive MIMO Networks”
Slides

Millimeter Waves and Visible Light Communications for Beyond-5G Cellular

Stefano Buzzi – Università di Cassino e del Lazio Meridionale, Italy
 buzzi@unicas.it

Due to the scarcity of available spectrum at sub-6 GHz spectrum, future cellular networks will make large use of higher frequency bands. Millimeter waves will be used in conjunction with and not as a substitute for conventional sub-6 GHz cellular frequencies, and will be helpful in boosting up network capacity for short-range (up to about 100 meters) low-mobility applications in densely crowded environments such as downtown areas of big cities stations, shopping malls, etc. Given the intense research that is currently ongoing worldwide, the use of frequencies in the range 10-90 GHz is expected to be introduced in mass-market production around the year 2020 or slightly later, while, instead, use of frequencies above 90GHz, up to THz frequencies (corresponding to visible light communications) for cellular communications is definitely in its infancy, with just few prototypes and test-beds so far available.

Speakers

  • Robert Heath (The University of Texas at Austin, US), “Exploiting sparsity for wideband mmWave channel estimation in IEEE 802.11ad”
  • Carmen D’Andrea (University of Cassino, Italy), “The doubly massive MIMO regime in mmWave communications”
  • Emilio Calvanese-Strinati (CEA-LETI France), “Next Generation mmWave for 5G and Beyond”
  • Volker Jungnickel (Fraunhofer HHI, Germany), “Optical wireless for Beyond 5G”
Slides

Photonics for 5G and beyond

Antonella BogoniScuola Superiore Sant’Anna, Italy
 antonella.bogoni@cnit.it

Antonio D’Errico – Ericsson, Italy
antonio.d.errico@ericsson.com

In order to enable connectivity for a wide range of new applications and use cases, the capabilities of 5G wireless access must extend far beyond previous generations of mobile communication. Examples of these extended capabilities include very high achievable data rates, very low latency, ultra-high reliability, including higher frequency bands and advanced multi-antenna transmission. The cross-fertilization between photonics and microwave systems can face these challenges, and open new horizons in setting new paradigms for 5G, promising improved performance and new services.

This session aims at discussing the present and future scenarios and recent advances on convergence of optical and radio networks and penetration of photonics in microwave subsystems.

Speakers

  • Andrew Lord (British Telecom, UK), “Photonics for 5G: an operator perspective”
  • Thomas Deiß (Nokia, Germany), “Industrial perspective in 5G optical transport”
  • Fabio Cavaliere (Ericsson, Italy), “Evolution of photonics for 5G”
  • Paolo Ghelfi (CNIT, Italy),  “Photonics functionalities for 5G and beyond”
Slides

Advances in Wireless Communications

In this special session, advanced topics in wireless communications will be covered.

Speakers

  • S. D’Oro (Univ. Of Catania, IT), “Energy-efficient resource allocation in C-RANs with temporal and QoS constraints”
  • Roberto Verdone (University of Bologna, Italy), “Using UAVs for Moving Networks: Impact on Delay and Throughput”
  • M. Moretti (Univ. of Pisa, IT) – Distributed power allocation for D2D communications underlaying/overlaying OFDMA cellular networks
  • S. Tomasin (Univ. of Padova, IT), “MOMA: a novel multiple access technique accommodating differentiated services for 5g systems”
Slides

5G European projects

5G is envisioned to enable a huge growth in the IT industry in the upcoming years drawing the attention of the European union. The main results achieved in 5G-related European projects will be presented.

Speakers

  • Riccardo Susini (National Instruments), “The Road to Massive MIMO mmWave Mobile Communications Systems”
  • Howard Benn (SAMSUNG, UK), ”5G Mobile Communications – Key Enabling Technologies and Recent R&D Results”
  • Malte Schellmann (Huawei, Germany), ‘Waveform design for 5G Air Interface: An Overview’
  • Mythri Hunukumbure (Samsung Electronics, UK), “Extending 5G Mobile Communications to the mm-wave spectrum – Opportunities and Challenges”
Slides