Roberto Riggio

Roberto Riggio
RISE Research Institutes of Sweden · Connected Intelligence

PhD

About

160
Publications
46,539
Reads
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2,067
Citations
Introduction
Roberto Riggio is Senior Researcher in the Connected Intelligence Group at RISE AB in Stockholm, Sweden. He received his PhD from the University of Trento (Italy), after that he was postdoc at University of Florida, Researcher/Chief Scientist at CREATE-NET in Trento (Italy), Head of Unit at FBK in Trento (Italy), and Senior 5G Researcher at the i2CAT Foundation in Barcelona (Spain). Roberto Riggio has published more than 130 papers in internationally refereed journals and conferences.
Additional affiliations
January 2019 - July 2019
Fondazione Bruno Kessler
Position
  • Head of Department
October 2016 - January 2017
FBK CREATE-NET
Position
  • Principal Investigator
November 2013 - present
Università degli Studi di Trento
Position
  • Guest Lecturer - Wireless Networks
Education
November 2004 - October 2008
Università degli Studi di Trento
Field of study
  • Information and Communication Technologies

Publications

Publications (160)
Article
While video-on-demand still takes up the lion's share of Internet traffic, we are witnessing a significant increase in the adoption of mobile applications defined by tight bit rate and latency requirements (e.g., augmented/virtual reality). Supporting such applications over a mobile network is very challenging due to the unsteady nature of the netw...
Article
Full-text available
In a world with increasing traffic demands, wireless technologies aim to meet them by means of new Radio Access Technologies that provide faster connectivity. Such is the case of 4G and 5G. However, in indoor scenarios, where the capabilities of these technologies are significantly affected by the distance to the base station and the materials used...
Article
Full-text available
The ongoing roll-out of 5G networks paves the way for many fascinating applications such as virtual reality (VR), augmented reality (AR), and autonomous driving. Moreover, 5G enables billions of devices to transfer an unprecedented amount of data at the same time. This transformation calls for novel technologies like multi-access edge computing (ME...
Article
Full-text available
The roll-out of the fifth generation of cellular network (5G) technology has generated a new surge of interest in the potential of blockchain to automate various use cases involving cellular networks. 5G is indeed expected to offer new market opportunities for small and large enterprises alike. In this article, we introduce a new roaming network ar...
Article
Full-text available
The complexity of wireless and mobile networks is growing at an unprecedented pace. This trend is proving current network control and management techniques based on analytical models and simulations to be impractical, especially if combined with the data deluge expected from future applications such as augmented reality. This is particularly true f...
Article
Full-text available
Network Function Virtualization (NFV) and Multi-access Edge Computing (MEC) are two technologies expected to play a vital role in 5G and beyond networks. However, adequate mechanisms are required to meet the dynamically changing network service demands to utilize the network resources optimally and also to satisfy the demanding QoS requirements. Pa...
Conference Paper
Full-text available
Streaming high-quality video over dynamic radio networks is challenging. Dynamic adaptive streaming over HTTP (DASH) is a standard for delivering video in segments, and adapting its quality to adjust to a changing and limited network bandwidth. We present a machine learning-based predictive pre-fetching and caching approach for DASH video streaming...
Article
Full-text available
5G networks are expected to support numerous novel services and applications with versatile quality of service (QoS) requirements such as high data rates and low end-to-end (E2E) latency. It is widely agreed that E2E latency can be reduced by moving the computational capability closer to the network edge. The limited amount of computational resourc...
Article
Full-text available
Software-Defined Networking (SDN) is gaining a lot of traction in wireless systems with several practical implementations and numerous proposals being made. Despite instigating a shift from monolithic network architectures towards more modulated operations, automated network management requires the ability to extract, utilise and improve knowledge...
Article
Full-text available
The MEC paradigm calls for a distribution of computational capacity at the network's edges. While MEC will play a key role in future 5G deployments, it will take some time until the existing 4G networks evolve into a full 5G system. A challenge exists to devise a transition mechanism that allows MEC features to be seamlessly integrated in the curre...
Conference Paper
Full-text available
Due to the varying conditions in traffic and resource availability in networks nowadays, maintaining continuity of network service and satisfying QoS and QoE requirements became a challenging task. If considered in a highly diversified environment in terms of technology and administration, it gets even more complicated, and appropriate service and...
Article
Full-text available
Over the last ten years, Vehicular Ad Hoc Networks (VANETs) have received significant attention from the academic and industrial communities alike. VANETs are a particular type of mobile ad hoc network originally designed for the purpose of facilitating the creation of spontaneous wireless networks between different vehicles, but since their incept...
Conference Paper
Full-text available
With the advent of 5G systems, telecommunication service providers (TSPs) have been facing a tremendous transition by the raised expectations of supporting billions of devices and an unprecedented amount of generated data. This revolutionary transformation necessitates innovative approaches such as multi-access edge computing (MEC) to meet the ambi...
Article
Full-text available
5G mobile network technology promises to deliver unprecedented ultra-low latency and high data rates, paving the way for many novel applications and services. Network Function Virtualization (NFV) and Multi-access Edge Computing (MEC) are two of the technologies that are expected to play a pivotal role in 5G to achieve ambitious Quality of Service...
Conference Paper
Full-text available
5G networks are characterized by massive device connectivity, supporting a wide range of novel applications with their diverse Quality of Service (QoS) requirements. This poses a challenge since 5G as one-fits-all technology has to simultaneously address all these requirements. Network slicing has been proposed to cope with this challenge, calling...
Conference Paper
Full-text available
The 5th generation mobile network (5G) is expected to support numerous services with versatile quality of service (QoS) requirements such as high data rates and low end-toend (E2E) latency. It is widely agreed that E2E latency can be significantly reduced by moving content / computing capability closer to the network edge. However, since the edge n...
Conference Paper
Full-text available
Network Function Virtualization is a promising technology that proposes to decouple the network functions from their underlying hardware and transform them into software entities called Virtual Network Functions (VNFs). This approach offers network operators with more flexibility to instantiate, configure, scale, and migrate VNFs at runtime dependi...
Conference Paper
Full-text available
In this article, we experimentally measure the throughput performance of a Wi-Fi, 802.11n, network when it is affected by LTE downlink transmissions. Our practical approach is based on a modular experimental test-bed. We initially compare our measurement results with the case without LTE interference; and further discuss that even the 3GPP features...
Article
Full-text available
Network slicing is a fundamental feature of 5G systems to partition a single network into a number of segregated logical networks, each optimized for a particular type of service or dedicated to a particular customer or application. The realization of network slicing is particularly challenging in the Radio Access Network (RAN) part, where multiple...
Preprint
Full-text available
Network slicing is a fundamental feature of 5G systems to partition a single network into a number of segregated logical networks, each optimized for a particular type of service, or dedicated to a particular customer or application. The realization of network slicing is particularly challenging in the Radio Access Network (RAN) part, where multipl...
Preprint
Full-text available
Network Function Virtualization is a promising technology that proposes to decouple the network functions from their underlying hardware and transform them into software entities called Virtual Network Functions (VNFs). This approach offers network operators with more flexibility to instantiate, configure, scale, and migrate VNFs at runtime dependi...
Article
Full-text available
Software-Defined Networking (SDN) is making their way into the fifth generation of mobile communications. For example, 3GPP is embracing the concept of Control-User Plane Separation (a cornerstone concept in SDN) in the 5G core and the Radio Access Network (RAN). In this paper we introduce a flexible, programmable, and open-source SDN platform for...
Preprint
Full-text available
The 5th generation mobile network (5G) is expected to support numerous services with versatile quality of service (QoS) requirements such as high data rates and low end-to-end (E2E) latency. It is widely agreed that E2E latency can be significantly reduced by moving content / computing capability closer to the network edge. However, since the edge...
Conference Paper
Full-text available
Recently, the interest in using Blockchain as a secure and distributed ledger has increased dramatically. Although the main purpose of Blockchain by means of Bitcoin was about cryptocurrency and peer to peer transactions, its application to other systems has been widely used. One of the fields that has potential possibilities to benefit from BlockC...
Conference Paper
Full-text available
Multi-access Edge Computing promises to improve mobile users experience by bringing storage and processing capabilities to the edges of the network. This approach allows third parties to deploy innovative services, like augmented reality, directly in the radio access network paving the way for new business models and new revenue stream for mobile n...
Conference Paper
Full-text available
In large and densely deployed IEEE 802.11 networks, a fast and seamless handover scheme is an important aspect in order to provide reliable connectivity for mobile users. However, IEEE 802.11 only supports decentralized, reactive and mobile node-driven handovers resulting in long handover times, packet loss due to interrupted connectivity and sub-o...
Conference Paper
Full-text available
Mobile data traffic demand has been growing at an unprecedented rate in the last few years. Cache-enabled mobile edge computing is known to be one of the most promising techniques to accommodate the traffic demand and alleviate the congestion at the backhaul links. However, due to limited cache capacity at the eNBs, at some parts of the network, co...
Article
Full-text available
By leveraging the fully–centralized and virtualized Cloud Radio Access Network (C–RAN) architecture over densely deployed small cells, Mobile Network Operators (MNOs) are expected to meet the ever–increasing coverage and capacity demands. Towards this end, finding the optimal numbers, and locations of Centralized Unit (CU) pools, and centralizing t...
Article
Full-text available
Network function virtualization (NFV) will simplify deployment and management of network and telecommunication services. NFV provides flexibility by virtualizing the network functions and moving them to a virtualization platform. In order to achieve its full potential, NFV is being extended to mobile or wireless networks by considering virtualizati...
Book
The book gathers contributions presented at the 4th IEEE International Conference on Network Softwarization, Montreal, Canada. NetSoft 2018 aimed to shed light on the key technology components and systems underlying SDN-NFV, clouds-edges and emerging network service infrastructures for the efficient handling of heterogeneous resources across networ...
Article
Full-text available
5G networks are expected to support various applications with diverse requirements in terms of latency, data rates and traffic volume. Cloud–RAN and densely deployed small cells are two of the tools at disposal of Mobile Network Operators to cope with such challenges. In order to mitigate the fronthaul requirements imposed by the Cloud–RAN architec...
Conference Paper
Full-text available
Among the significant advances in mobile network technology, as evident in the latest 3GPP releases, one of the most notable is the possibility to do aggregation between licensed and unlicensed carriers. With LTE transmitting over unlicensed bands, obvious concerns of a fair co-existence with other preexisting technologies have risen up. In this st...
Chapter
Full-text available
5G networks will incorporate virtualized network infrastructures and new technologies such as Software Defined Networking and Network Function Virtualization. The developments have predominantly been made in the core and back-haul network segments. However, the ambitious Key Performance Indicators (KPIs) set for 5G networks will necessitate a renew...
Article
The ever–increasing demand for mobile content delivery and multimedia services is bringing renewed interest in multicast communications in Wi–Fi based WLANs. Nevertheless, multicast over Wi–Fi raises several challenges including low data rates and coexistence issues with other unicast streams. Some amendments to the Wi–Fi standard, such as 802.11aa...
Article
Wireless networks research and development efforts are largely driven by the increasing interest in multimedia applications. Video streaming services, which often involve strict Quality of Service (QoS) requirements and are very sensitive to delays, represent a significant proportion of these applications. In IEEE 802.11–based WLANs, these services...
Article
Full-text available
Softwarization of networks is an important trend, enabled by the NV (Network Virtualization), SDN (Software-Defined Networking), and NFV (Network Function Virtualization) paradigms and offers many advantages for network operators, service providers and datacenter providers. Given the strong interest in both industry and academia in the softwarizati...