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Olivier ALPHAND


Olivier ALPHAND is associate professor in Computer Networks at Grenoble INP - Université Grenoble Alpes, and member of the LIG (Laboratoire d'Informatique de  Grenoble) lab, in the Drakkar team since 2006. 

He teaches at Ensimag (engineering school) and his research theme is centered on the study and development of network protocols in wireless networks in the broad sense (from WSN (Wireless Sensor Network) (10m/100kbps) to satellite (36000km/Gbps) via WiFi (100m/Mbps) or more recently LPWAN (10km/1kbps)).

His work focuses on the self-organization of WSNs through, for example, the adaptation of routing and access protocols as well as their duty-cycle to their local traffic and energy conditions. Another aspect of his work concerns the development of distributed communication scheduling algorithms to optimize the data flow in WSNs. In order to validate these protocols, real experiments have taken an important part to overcome the limitations of simulators. This requires on the one hand to port protocols on real nodes and on the other hand to deploy this code and experiment on platforms such as IoT-LAB. An important work of characterization of the behavior of wireless links accompanied these experiments in order to better choose the metrics for the developed protocols.

Another part of his activity is focused on LPWAN random access methods that could benefit cellular networks for IoT (Internet of Things) such as LoRa networks (very low data rate (1kbps) but very long range (10km) and densely connected (100.000 objects/base station)). He is currently focusing on the use of LoRa technology in new space with especially the development of a payload for benchmarking LoRa modulation in a cubesat (Thingsat project).


Journal articles4 documents

  • Michele Amoretti, Olivier Alphand, Gianluigi Ferrari, Franck Rousseau, Andrzej Duda. DINAS: a Lightweight and Efficient Distributed Naming Service for All-IP Wireless Sensor Networks. IEEE internet of things journal, IEEE, 2016, pp.1 - 14. ⟨10.1109/JIOT.2016.2640317⟩. ⟨hal-01468396⟩
  • Liviu-Octavian Varga, Gabriele Romaniello, Malisa Vucinic, Michel Favre, Andrei Banciu, et al.. GreenNet: an Energy Harvesting IP-enabled Wireless Sensor Network. IEEE internet of things journal, IEEE, 2015, PP (99), pp.14. ⟨10.1109/JIOT.2015.2425431⟩. ⟨hal-01188285⟩
  • Antonio Pietrabissa, Tiziano Inzerilli, Olivier Alphand, Pascal Berthou, Eddy Formentin, et al.. Validation of a QoS architecture for DVB/RCS satellite networks via a hardware demonstration platform. Computer Networks, Elsevier, 2005, 6 (49), pp. 797-815. ⟨hal-00357207⟩
  • Stephane Combes, Olivier Alphand, Pascal Berthou, Thierry Gayraud. Satellite and next generation networks : QoS issues. Space Communications, IOS Press, 2005, 20 (3-4), p.101-119. ⟨hal-00357209⟩

Conference papers18 documents

  • Olivier Alphand, Karine Altisen, Rodolphe Bertolini, Stéphane Devismes, Ali Fahs, et al.. Eviter les collisions dans les réseaux 6TiSCH. Rencontres Francophones sur la Conception de Protocoles, l’Évaluation de Performance et l’Expérimentation des Réseaux de Communication (CORES 2018), May 2018, Roscoff, France. ⟨hal-01785956⟩
  • Olivier Alphand, Michele Amoretti, Timothy Claeys, Simone Dall 'Asta, Andrzej Duda, et al.. IoTChain: A Blockchain Security Architecture for the Internet of Things. IEEE Wireless Communications and Networking Conference, Apr 2018, Barcelona, Spain. ⟨hal-01705455⟩
  • Ali Fahs, Rodolphe Bertolini, Olivier Alphand, Franck Rousseau, Karine Altisen, et al.. Collision Prevention in Distributed 6TiSCH Networks. IEEE International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), Oct 2017, Rome, Italy. ⟨10.1109/WiMOB.2017.8115798⟩. ⟨hal-01614643⟩
  • Iacob Juc, Olivier Alphand, Roberto Guizzetti, Michel Favre, Andrzej Duda. Energy Consumption and Performance of IEEE 802.15.4e TSCH and DSME. Proc. of the IEEE Wireless Communications and Networking Conference (WCNC), IEEE, Apr 2016, Doha, Qatar. ⟨hal-01287512⟩
  • Ana Bildea, Olivier Alphand, Franck Rousseau, Andrzej Duda. Link Quality Estimation with the Gilbert-Elliot Model for Wireless Sensor Networks. International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2015), Aug 2015, Hong-Kong, China. ⟨10.1109/PIMRC.2015.7343635⟩. ⟨hal-01188270⟩
  • Gabriele Romaniello, Olivier Alphand, Roberto Guizzetti, Andrzej Duda. Sustainable Traffic Aware Duty-Cycle Adaptation in Harvested Multi-Hop Wireless Sensor Networks. Proc. the IEEE 81st Vehicular Technology Conference (VTC2015-Spring), IEEE, May 2015, Glasgow, United Kingdom. ⟨10.1109/VTCSpring.2015.7146117⟩. ⟨hal-01287516⟩
  • Gabriele Romaniello, Olivier Alphand, Andrzej Duda, Roberto Guizzetti. Expected Delay for Topology Construction and Reconfiguration in Harvested 802.15.4 Networks. Proceedings of the IEEE 10th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), 2014, Larnaca, Cyprus. ⟨hal-01073759⟩
  • Michele Amoretti, Olivier Alphand, Gianluigi Ferrari, Franck Rousseau, Andrzej Duda. DINAS: a DIstributed NAming Service for All-IP Wireless Sensor Networks. Proceedings of the IEEE Wireless Communications and Networking Conference (WCNC), 2014, Istanbul, Turkey. ⟨10.1109/WCNC.2014.6952869⟩. ⟨hal-01073758⟩
  • Malisa Vucinic, Gabriele Romaniello, Laurene Guelorget, Bernard Tourancheau, Franck Rousseau, et al.. Topology Construction in RPL Networks over Beacon-Enabled 802.15.4. Computers and Communication (ISCC), 2014 IEEE Symposium on, Jun 2014, Madeira, Portugal. ⟨10.1109/ISCC.2014.6912563⟩. ⟨hal-00985933v2⟩
  • Ana Bildea, Olivier Alphand, Andrzej Duda. Link Quality Metrics in Large Scale Indoor Wireless Sensor Networks. 15èmes Rencontres Francophones sur les Aspects Algorithmiques des Télécommunications (AlgoTel), May 2013, Pornic, France. pp.4. ⟨hal-00818548⟩
  • Ana Bildea, Olivier Alphand, Franck Rousseau, Andrzej Duda. Link Quality Metrics in Large Scale Indoor Wireless Sensor Networks. Proceedings of the 24th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC'13), 2013, London, United Kingdom. ⟨10.1109/PIMRC.2013.6666451⟩. ⟨hal-01199098⟩
  • Gabriele Romaniello, Emmanouil Potetsianakis, Olivier Alphand, Roberto Guizzetti, Andrzej Duda. Fast and energy-efficient topology construction in multi-hop multi-channel 802.15. 4 networks. Wireless and Mobile Computing, Networking and Communications (WiMob), 2013 IEEE 9th International Conference on, Oct 2013, LYON, France. pp.382--387. ⟨hal-01070334⟩
  • Franck Rousseau, Yan Grunenberger, Vincent Untz, Eryk Schiller, Paul Starzetz, et al.. An Architecture for Seamless Mobility in Spontaneous Wireless Mesh Networks. Proceedings of the 2nd ACM/IEEE International Workshop on Mobility in the Evolving Internet Architecture (Mobiarch'07), 2007, Kyoto, Japan. pp.1-8, ⟨10.1145/1366919.1366922⟩. ⟨hal-01199106⟩
  • Olivier Alphand, Pascal Berthou, Thierry Gayraud, Frédéric Nivor, Stephane Combes. PLATINE:DVB-S/RCS testbed for next generation satellite networks. ASMS 2006, May 2006, Munich, Germany. pp.0. ⟨hal-00356867⟩
  • Thierry Gayraud, Olivier Alphand, Pascal Berthou, Baptiste Jacquemin, C. Baudoin. Mobility architectures for DVB-S/RCS satellite networks. 2th Ka band Broadband Communications Conference, Sep 2006, Naples, Italy. pp.CDROM. ⟨hal-00356866⟩
  • Olivier Alphand, Pascal Berthou, Thierry Gayraud, Stephane Combes. Signalisation de QdS dans un réseau satellite de nouvelle génération. 11ème Colloque Francophone sur l'Ingénierie des Protocoles (CFIP'2005), Mar 2005, Bordeaux, France. p.483-498. ⟨hal-00356870⟩
  • Olivier Alphand, Pascal Berthou, Thierry Gayraud, Stéphane Combes. QoS Architecture over DVB-RCS satellite networks in a NGN framework. Globecom 2005, Dec 2005, St Louis, United States. 5p. ⟨hal-00356869⟩
  • Laurence Duquerroy, Sébastien Josset, Olivier Alphand, Pascal Berthou, Thierry Gayraud. SatIPSec : an optimized solution for securing multicast and unicast satellite transmissions. 22nd AIAA International Communications Satellite Systems Conference, May 2004, Monterey, United States. 11p. ⟨hal-00369082⟩

Book sections1 document

Reports1 document

  • Iacob Juc, Olivier Alphand, Roberto Guizzetti, Michel Favre, Andrzej Duda. Stripe: a Distributed Scheduling Protocol for 802.15.4e TSCH Networks. [Research Report] RR-LIG-54, Laboratoire d'Informatique de Grenoble. 2017, pp.6. ⟨hal-01585904⟩

Theses1 document

  • Olivier Alphand. Architecture à qualité de service pour systèmes satellites DVB-S/RCS dans un contexte NGN. Réseaux et télécommunications [cs.NI]. Institut National Polytechnique de Toulouse - INPT, 2005. Français. ⟨tel-00011402⟩