Section: Partnerships and Cooperations

National Initiatives

ANR

GETRF

Participants : Paul Muhlethaler, Pascale Minet, Cédric Adjih, Emmanuel Baccelli, Philippe Jacquet.

Period: 2012 - 2014.

Partners: DGA/MI, Inria (coordinator), Alcatel-Lucent.

The GETRF project aims at improving the effectiveness of communications mechanisms and technologies capable of functioning in extreme conditions and GETRF also aims at opening ways for solutions that are close to the optimum. The following areas will be addressed:

• Compromise time / maximum efficiency for coloring (TDMA), which can be used to take into account the asymmetry of traffic delays to optimize routing.

• Significant energy savings for opportunistic routing (in power saving mode) even where traffic control is limited and where the nodes are idle most of the time ("low-duty cycle")

• From a completely different point of view, the finding optimal network capacity for opportunistic routing variants when designed for mobile networks

• Robustness to mobility and to changes in network conditions (difficult connectivity, foes, ...) extreme network coding - which is moreover an innovative technology in itself applied here in MANETs, at the network and/or application layer, rather than at the physical/or theoretical level as in other proposals.

The project focuses on four technical approaches which are:

• Coloring for the development of a TDMA system for energy saving and delay control,

• Cross-layer (MAC/routing) mechanism for "low-duty-cycle" mode

• Network coding,

• Opportunistic routing and mobile mobility to use relays to minimize retransmissions of packets with a target time.

The first two approaches are intended to provide energy efficient sensor networks. The second two approaches try to provide mechanisms for building ad hoc networks capable of handling high node mobility.

Competitivity Clusters

SAHARA

Participants : Pascale Minet, Ridha Soua, Erwan Livolant.

$$

Period: 2011 - 2014.

Partners: EADS (coordinator), Astrium, BeanAir, CNES, ECE, EPMI, Eurocopter, GlobalSys, Inria, LIMOS, Oktal SE, Reflex CES, Safran Engineering Systems.

SAHARA is a FUI project, labelled by ASTECH and PEGASE, which aims at designing a wireless sensor network embedded in an aircraft. The proposed solution should improve the embedded mass, the end-to-end delays, the cost and performance in the transfers of non critical data. Inria is in charge of coordinating the academic partners. During year 2013, we specified the protocols for layer 3. We organized demonstrations in March at Rocquencourt and in July 2013 at Suresnes to prove our concepts.

CONNEXION

Participants : Pascale Minet, Saoucene Ridene, Ines Khoufi, Erwan Livolant.

$$

Period: 2012 - 2016.

Partners: EDF (coordinator), All4Tec, ALSTOM, AREVA, Atos WorldGrid, CEA, CNRS / CRAN, Corys TESS, ENS Cachan, Esterel Technologies, Inria, LIG, Predict, Rolls-Royce Civil Nuclear, Telecom ParisTech.

The Cluster CONNECTION (Digital Command Control for Nuclear EXport and renovation) project aims to propose and validate an innovative architecture platforms suitable control systems for nuclear power plants in France and abroad. This architecture integrates a set of technological components developed by the academic partners (CEA, Inria, CNRS / CRAN, ENS Cachan, LIG, Telecom ParisTech) and based on collaborations between major integrators such as ALSTOM and AREVA, the operator EDF in France and "techno-providers" of embedded software (Atos WorldGrid, Rolls-Royce Civil Nuclear, Corys TESS, Esterel Technologies, All4Tec, Predict). With the support of the competitiveness clusters System@tic, Minalogic and Burgundy Nuclear Partnership,the project started in April 2012. The key deliverables of the project covered several topics related demonstration concern-driven engineering models for the design and validation of large technical systems, design environments and evaluation of HMI, the implementation of Wireless Sensor Network context-nuclear, buses business object or real-time middleware facilitating the exchange of heterogeneous data and distributed data models standardized to ensure consistency of digital systems.

The HIPERCOM2 team is involved in wireless sensor networks coping with node mobility. We focused on deployment and redeployment algorithms for mobile wireless sensor networks after a disaster. We began with a state of the art. Many works in the literatures deal with this issue. We distinguish:

• Grid based approach: sensors will redeploy according to a predetermined grid.

• The computational geometry based approach uses the Voronoi diagram and the Delaunay triangulation.

• The virtual force based approach is based on virtual forces to move sensors.

The virtual force based approach presents many advantages such as simplicity and fast coverage. That is why we adopt this approach. However, the distributed version is prone to node oscillations that consume energy. We proposed two distributed algorithms to reduce node oscillations: ADVFA that adapts to the effective number of operational sensor nodes and GDVFA that takes advantage of grid to avoid these oscillations and to easily detect redundant nodes that can sleep to save energy.

SMARTMESH

Participants : Cédric Adjih, Alaeddine Weslati.

$$

This is a joint work with Emmanuel Baccelli from Inria Saclay.

Period: 2010 - 2013.

Partners: SAGEM, CEA, Telecom SudParis, Ineo Defense, IEF, Orelia, Prodomo, Reflex CES, Evitech, Accuwatt.

SMARTMESH is a System@tic project, focused on the design of intelligent wireless sensor mesh networking for video surveillance and intrusion alarm systems.

In 2013, Inria finalized the communication subsystem comprising the following elements:

• Communication hardware using Senslab nodes (WSN430), directly connected to “SMARTMESH” nodes, with 802.15.4 radio.

• Communication software based on an extended version of the Contiki-OS

• Extensions of RPL routing protocol: P2P-RPL and MLN-RPL (Multi-Level Neighborhood RPL, for filtering appropriate links).

• Adaptation of the Contiki-OS 802.15.4 MAC layer for enabling better performance.

• Development of a cross-layering transport layer, to allow the efficient transport of large burst of data (images), on top of the 6lowpan/802.15.4 layer: a “burst-mode” communication protocol.

During the year 2013, the different components of the SMARTMESH project have been integrated to develop a specific application of area surveillance, with an easily deployable system. The system comprises a number of sensors: audio sensors, PIR sensors, infrared cameras, standard camera; a number of sophisticated signal processing algorithms (audio, video, distributed fusion and tracking, energy management); the communication susbsystem itself; and a control/supervising terminal (displaying alarms, and tracks in real time).

Ten SMARTMESH prototype nodes have been created, integrating the different components. They have been tested in deployments in the military camp of Beynes (mostly from december 2012 to february 2013). The deployments had been planned with a map describing orientation and positions of the sensors of the nodes.

A demonstration of the entire SMARTMESH project was successfully conducted on 22 february, with the following application: detection of human “intruders”, and of vehicles, and tracking of their motion.

ACRON

Participant : Cédric Adjih.

$$

Period: 2011 - 2013

Partners: Supélec (Télécommunications), Inria, ENS TREC, Inria HIPERCOM, Université Paris-Sud, IEF.

ACRON is a DIMLSC DIGITEO project. It deals with analysis and design of self-organized wireless networks. The HIPERCOM team project will study the theoretical limits of wireless networking.

In 2013, we finalized a protocol for diffusion in Vehicular Networks (VANETs) using network coding: the “DONC” diffusion protocol (joint work with Anthony Busson and Farhan Mirani in particular). The protocol is combining network coding with delay-based broadcast.

SWAN

Participants : Cédric Adjih, Claudio Greco.

$$

Period: 2011 - 2014

Partners: CNRS, Supélec, Université Paris-Sud (L2S), LTCI, LRI, Inria and IEF.

SWAN, Source-aWAre Network coding, is a DIMLSC DIGITEO project. It deals with network coding for multimedia.

MOBSIM

Participants : Cédric Adjih, Paul Muhlethaler, Hana Baccouch.

$$

Period: 2011 - 2013

Partners: Inria Sophia, Inria Genoble.

MOBSIM is an ADT, Action of Technology Development. It aims at developping the NS3 simulation tool. The HIPERCOM team focuses on routing protocols and MAC protocol (namely the EY-NPMA protocol Elimination Yield Non-Preemptive Multiple Access). An engineer has been recruited for this project.

Thanks to the ADT, a module for the simulator ns-3 has been released: Ey-Wifi. It is available, along with a detailed tutorial explaining how to use it, at: http://hipercom.inria.fr/Ey-Wifi