Enabling SDN in VANETs: What is the Impact on Security?

The demand for safe and secure journeys over roads and highways has been growing at a tremendous pace over recent decades. At the same time, the smart city paradigm has emerged to improve citizens’ quality of life by developing the smart mobility concept. Vehicular Ad hoc NETworks (VANETs) are widely recognized to be instrumental in realizing such concept, by enabling appealing safety and infotainment services. Such networks come with their own set of challenges, which range from managing high node mobility to securing data and user privacy. The Software Defined Networking (SDN) paradigm has been identified as a suitable solution for dealing with the dynamic network environment, the increased number of connected devices, and the heterogeneity of applications. While some preliminary investigations have been already conducted to check the applicability of the SDN paradigm to VANETs, and its presumed benefits for managing resources and mobility, it is still unclear what impact SDN will have on security and privacy. Security is a relevant issue in VANETs, because of the impact that threats can have on drivers’ behavior and quality of life. This paper opens a discussion on the security threats that future SDN-enabled VANETs will have to face, and investigates how SDN could be beneficial in building new countermeasures. The analysis is conducted in real use cases (smart parking, smart grid of electric vehicles, platooning, and emergency services), which are expected to be among the vehicular applications that will most benefit from introducing an SDN architecture

Enabling Internet of Everything Everywhere: LPWAN with satellite backhaul

International audienceOne of the basic requirements of the Internet of Things (IoT) is that all the devices are connected wherever they happen to be. While Wi-Fi, Bluetooth, 4G cellular networks are able to support many IoT applications, they cannot provide an ubiquitous and seamless coverage as satellites. Connecting terrestrial IoT network segments directly to IoT service back ends via satellite broadband is becoming a new business focus, creating opportunities for notable use of hybrid Low Power Wide Area Network (LPWAN) to satellite gateways. In the present work we analyze the potential of satellite for the IoT. We review the present-day initiatives from Satellite and Telco operators to deploy satellite-enabled LPWANs. Last but not least, we illustrate the technical challenges to be faced for interconnecting satellite and LoRaWAN networks, which call for further research investigation

IoT Application Protocols Optimisation for Future Integrated M2M-Satellite Networks

Satellites are playing a key role in driving the vision for a truly connected world, providing ubiquitous coverage and reliability in places where no other terrestrial technology could. While the potentials of satellites for IoT are well recognised, to allow a smooth integration of M2M and satellite networks, a lot of tweaking and optimising is still required. The M2MSAT project, funded by the European space Agency (ESA) is contributing to fill this gap, investigating optimisations for MQTT and CoAP, identified as IoT Application Protocols suitable for IoT data collection over satellite. This work outlines the efficient configuration of MQTT and CoAP in an integrated M2M-Satellite network, and presents some optimisations, designed taking into account the peculiarities of satellite links

Towards a New Way of Reliable Routing: Multiple Paths over ARCs

The Available Routing Construct (ARC), recently proposed at IETF, provides a promising model for achieving highly reliable routing in large-scale networks. Among its features, ARC offers multi-path routing by design. In the present work, we introduced ARC for the first time to the research community. Then, we showed, by means of simulation results, how ARC over-performs classical multi-path routing algorithms, by building disjoint multiple paths without extra-cost due to new route computation

Using IEEE 802.15.4e Time-Slotted Channel Hopping (TSCH) in the Internet of Things (IoT): Problem Statement

International audienceThis document describes the environment, problem statement, and goalsfor using the Time-Slotted Channel Hopping (TSCH) Medium AccessControl (MAC) protocol of IEEE 802.14.4e in the context of Low-Powerand Lossy Networks (LLNs). The set of goals enumerated in thisdocument form an initial set only