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PhD "Resource optimization in satellite-integrated networks"
Il y a 5 mois
about the role
Your role is to work on a PhD entitled “Resource optimization in satellite-integrated networks”
Global context and problematic of the subject
The extension of coverage with terrestrial networks (TN) is both an economic and technological obstacle. On the other hand, non-terrestrial networks (NTNs) have the capacity to provide cost-effective, ubiquitous and high-capacity connectivity in future networks. NTN refers to networks based on space vehicles or an airborne platform for radio transmission. The integration of NTNs with TN is considered essential for the overall penetration of future global 5G/6G systems.
In an integrated system, with limited resources, interference must be avoided between TN-NTN to protect our terrestrial network. On the other hand, we need to optimize the system so that the performances 1+1> 2 . Dynamic and intelligent allocation of radio resources between terrestrial networks and satellites can help optimize limited resources, control interference from satellite communication to MNOs' terrestrial networks, and satisfy a wide range of service requests from different customers.
The main scientific objective of the PhD :
· Deduce the fundamental limitations of integrated NTN-TN systems
· Efficient transmitter and receiver designs to mitigate interference and improve throughput
· Dynamic and intelligent allocation of radio resources (power control, PRB, frequencies, satellite beam bandwidth, etc.) to adapt to various use cases with different KPIs in an extremely complex and highly dynamic system such as integrated TN-NTN
The main scientific or technical obstacles to be dealt with:
1-Need of satellite datasets for training phase in AI algorithms
2-Channel modeling adapted to satellite networks
3-Compared with terrestrial networks, NTN has a number of special characteristics, such as longer propagation delay, greater Doppler effect, frequent handovers, limited on-board resources, etc. These are new constraints to be integrated into the optimization process. These are new constraints that need to be integrated into the optimization process. Taking performance and quality of service into account
4-Definition of KPIs specific to NTN to optimize and compare performance in a dynamic environment.
about you
Skills (scientific and technical) and personal qualities required by the position :
o Extensive expertise in wireless networks (PHY, MAC layers and radio resource management) and in mathematics (optimization, queuing theory)
o Very good oral and written communication skills in English
o Expertise in simulation and computer language (notably Matlab)
o Experience in research desired and associated techniques (work organization, reports, documentation, autonomy, creativity)
Required training (master, engineering degree, doctorate, scientific and technical field, etc.)
o Master in Telecommunications, Networks or Digital Communications, Operational Research
o Or engineering degree
additional information
o An innovative field in full revolution, the rapid growth of satellite technology
o Projects involving all operators including the satellite industry
o A team having to take up the challenge of the future architecture of mobile networks
o The opportunity to work on advanced techniques related to 5G and 6G
o The opportunity to develop original mathematical approaches for concrete and innovative use in networks
o The possibility of being in interaction with both the industrial world and the academic world and of being a bridge between these two environments
o Possible participation in regional, national, or European collaborative projects
The possibility of participating in prestigious international conferences
department
Orange Innovation brings together the research and innovation activities and expertise of the Group's entities and countries. We work every day to ensure that Orange is recognized as an innovative operator by its customers and we create value for the Group and the Brand in each of our projects. With 720 researchers, thousands of marketers, developers, designers and data analysts, it is the expertise of our 6,000 employees that fuels this ambition every day.
Orange Innovation anticipates technological breakthroughs and supports the Group's countries and entities in making the best technological choices to meet the needs of our consumer and business customers.
Within the Radio Networks & Microwaves Department, you will join the Radio Innovation department to contribute to research activities on the evolution of mobile networks. The "Software & Radio Architecture" (SRA) team is in charge of analyzing industrial developments and evaluating the radio performance of mobile access systems and managing their resources. These analyzes and studies are currently focused on developments in technologies, as well as those in network architecture.
contract
Thesis
