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| − | [[fr:Offres_d'emploi,_thèses]] | + | [[fr:Offres_d'emploi_et_offres_de_stages]] |
| − | == PhD positions - 2016 ==
| + | __NOTOC__ |
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| − | === Multi-path in networks: detection and evaluation of performance === | + | === Permanent positions === |
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| − | '''Advisors:''' Cristel Pelsser, Stéphane Cateloin, Pascal Mérindol
| + | Candidates should contact the group leader as soon as they consider applying for a position: [mailto:fabrice.theoleyre@cnrs.fr fabrice.theoleyre@cnrs.fr] |
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| − | The first objective will be to develop measurement techniques to detect, quantify and characterize multipath in today’s Internet. To measure the performance observed by applications in a multipath environment and understand the different forms of multi-path is a second objective for this work. For this purpose, the student will develop correlation techniques in order to pinpoint the paths used by a flow and the performance of its paths.
| + | * [https://www.dgdr.cnrs.fr/drhchercheurs/concoursch/default-fr.htm CNRS researcher]: usual deadline in January |
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| − | We will subsequently draw conclusions from our measurements. Based on our observations, we will determine whether there are aspects of multipath routing that need to be improved. We may develop techniques to avoid path segments incurring degraded performance. This may require changes in the signaling of routing information, in the computation and use of the paths in order to spread traffic dynamically upon changes in load. The objective is to nevertheless provide a stable routing solution that avoids the negative effects of route oscillations.
| + | * [https://www.inria.fr/fr/chargees-et-charges-de-recherche-de-classe-normale-crcn Inria Researchers]: usual deadline in February |
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| − | The PhD student will elaborate methods to correlate changes in the control plane with performance degradation. If she/he observes that some actions of the network operators are detrimental to the performance, the student will propose efficient network maintenance techniques that are exempt of problems in a multi-path context.
| + | * Associate Professor: the campaign is closed |
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| − | Finally, we will study which properties can make multipath routing protocols more robust to changes than single path environments. Which physical topologies meet robustness requirements? How to design iBGP topologies?
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| − | [[Media:PhD position multipath networks 2016 en.pdf|Full subject]]
| + | === Postdoc === |
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| − | '''To apply, please send your full CV, academic record, recommendation(s) and supporting letter before may 20 2016 to [mailto:pelsser@unistra.fr pelsser@unistra.fr].'''
| + | * all the positions have been filled |
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| − | === Virtualizing Heterogeneous Wireless Networks with SDN for the 5G ===
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| − | '''Direction''' : Fabrice Théoleyre, Antoine Gallais, Kristof Van Laerhoven
| + | === PhD Positions === |
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| − | The use of Information and Communication Technologies (ICT) is becoming increasingly important. The European Telecommunication Area has been reported to bypass the aerospace and pharmaceutical domains.Telcos offer a digital connection to an increasing number of diverse devices.
| + | <!-- '''[https://bramas.fr/static/thesis/phd_proposal_2023.pdf Better Algorithms for Secure and Efficient Blockchains]''', under the supervision of Prof. Quentin Bramas --> |
| − | While the historical mobile networks were primarily designed for voice and later extended for data communication (smartphones), we now face the rise of intensive Machine-To-Machine communications. The LTE technology has recently provided a way to increase the throughput (≈300Mbps), but it is mainly dedicated for smartphones applications. In particular, such technology has not been designed to support a very large density of devices transmitting only a few data packets per day / week. The 5G networks provide a cornerstone architecture for enabling the emerging smart cities and smart buildings applications that exhibit those characteristics.
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| − | Currently, we face to concurrent technologies for IoT (LoRA, IEEE 802.11ah, IEEE 802.15.4g, IEEE 8021.5.4e-TSCH) which all exploit the same unlicensed band. Each of this technology has its own advantages and scenario of predilection : they will probably have to cohabit in the future. One of the major future challenge will consist in exploiting in symbiosis all of them.
| + | * '''[[Media:IoT data integrity.pdf|IoT data integrity]]''', under the supervision of Dr. Loïc Miller, Prof. Pascal Mérindol, Prof. Cristel Pelsser et Prof. Anissa Lamani |
| − | The PhD student will explore how we may use all these technologies to provide a connectivity in the Internet of Everything. First of all, he will conduct experiments on our FIT IoT-Lab (http://iot-lab.info/) platform to more accurately model their interactions, and to extract pathological situations.
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| − | The second step will consist in proposing a new architecture, and new mechanisms to make them work together. We must be able to provide mechanisms to guarantee end-to-end performance : whatever the technology used for each hop, a minimum reliability or a maximum delay should be secured. Software Defined Networking (SDN) may provide interesting mechanisms to guarantee flow isolation.
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| − | [[Media:Idex5g_en.pdf| PhD offer description]] | + | * '''[https://reseaux.icube.unistra.fr/index.php/Fichier:DT-winet.pdf Digital Twins for Wireless (5G, IoT, IIoT) Networks]''', under the supervision of Dr. Fabrice Theoleyre |
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| − | '''Candidates may apply before May 15th 2016'''. | + | * '''[https://reseaux.icube.unistra.fr/index.php/Fichier:5g-monitoring.pdf Inter-domain Monitoring and Predictions for Service Orchestration in 5G]''', under the supervision of Prof. Julien Montavont et Dr. Fabrice Theoleyre |
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| − | == PhD positions - 2014 ==
| + | * '''[https://reseaux.icube.unistra.fr/index.php/Fichier:SwarmRobotics.pdf Robustness and Adaptability in Autonomous Robot Systems]''', under the supervision of Dr. Quentin Bramas, Dr. Anissa Lamani, Dr. Jean-Romain Luttringer and Prof. Pascal Mérindol |
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| − | '''Advisors''' : Fabrice Theoleyre, Stéphane Cateloin, Pascal Mérindol
| + | === Internships === |
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| − | [[Media:PhD_position_multipath_2014.pdf|Full subject]]
| + | * all the positions have been filled this year. |
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| − | To apply, please send your full CV, academic record, recommendation(s) and supporting letter before may 15 2013 to [mailto:cateloin@unistra.fr,merindol@unistra.fr cateloin@unistra.fr,merindol@unistra.fr].
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| − | == PhD positions - 2013 ==
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| − | === Multipath routing and collaborative load balancing ===
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| − | '''Advisors''' : Thomas Noël, Jean-Jacques Pansiot, Stéphane Cateloin
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| − | Load balancing is a decision process that may be based on indicators which are local or received from other routers. The nature of these indicators should be adapted according to the context in which they are employed (wireless networks, sensor networks, code networks...). Variables relating to the quality of service could also come into consideration, for example by assigning real-time flows to one or more paths respecting specific constraints.
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| − | The main objective of this thesis is to focus on the collaboration between routers, which relies on an exchange of messages. These messages can be upstream requests such as throughput reduction ("backpressure messages"), messages allowing the admission of new flows , or
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| − | disseminating information relating to the current conditions of routers (e.g. radio links quality, position and speed of a mobile node, or its battery level).
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| − | The qualitative or quantitative nature of the data exchanged, the triggers of these messages, their rate, and the action to be taken upon receipt are all behaviors to define and study. The candidate will have to evaluate the solutions he proposes, using simulation tools. Besides the quality of the distribution, convergence is a crucial point. The performance analysis will determine whether the proposed solutions are constantly evolving in an unstable state or whether tend towards an acceptable steady solution. In this case, the convergence time is an important indicator.
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| − | [[Media:PhD position Multipath routing and collaborative load balancing.pdf|Full subject]]
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| − | To apply, please send your full CV, academic record, recommendation(s) and supporting letter before may 15 2013 to [mailto:cateloin@unistra.fr cateloin@unistra.fr].
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| − | === Internet Service Provider Networks & Multi-Path Routing ===
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| − | '''Advisors''' : Thomas Noël, Jean-Jacques Pansiot, Pascal Mérindol
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| − | * A Thesis subject "Internet Service Provider Networks & Multi-Path Routing" is available [[Media:ModelsGraphRouting.pdf| here: Models, IP Graphs & Routing ]]. Please [mailto:merindol@unistra.fr,pansiot@unistra.fr contact us] to apply before may 15 2013.
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| − | Networks operators must ensure a certain degree of connectivity to their customers. This induces specific patterns that structure the underlying graph, in particular the assurance of minimum redundancy. Another problem in networks of operators is their resources optimization. This objective can be implemented with multipath routing. It is one of the possible solutions to distribute the load in the network and limit congestions. The objective of this thesis is to investigate the relationships linking the graph structure of IP networks and the opportunity to efficiently develop and deploy a multipath routing protocol. The issue of valuation is then prevalent: is it easier to evaluate the valuation modification or overcome this logical overlay and then only rely on the physical structure? Is it possible to say a priori, and knowing the topological characteristics of a network, what algorithm multipath routing protocol is most effecient? Conversely, can we, given a routing algorithm, infer appropriate graph models , which favor it efficiency? Are there IP networking patterns that hamper the establishment of multiple routes or, conversely, are there any structural and logical patterns that tend to favor it?
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| − | == Past positions ==
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| − | * 2012 - Our group proposes a PhD student position ([[Media:phdstudentIOT.pdf|Profile]]). Please, [[Where_to_find_us|contact us]] for any further information.
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