Research

Towards a more and more digital world !

This motto also embodies a goal for the research carried out within Telecom ParisTech, to which the Comelec departement contributes through scientic works at the interface between the physical ("real" world) and the virtual world, that of applications, of computers and of technology use to which we are increasingly invited to be part of in today's society. Societal challenges, such as sharing of knowledge, soberty in the use of natural resources, health, transports always widely rest on technological performance improvement in the physical layer, which is the deepest system level according the the time honored OSI model for information processing and communications systems.
Keywords such as networks, communicating objects, electronic architectures fairly well express the scientific and technological areas of which are part the research efforts of the department according to a roadmap that is specific to each of the education & reserach group. This "bottom-up" approach is, however, enriched by the growing need of a very early accounting of interactions between sub-systems, allowing a more optimal design, which demands enhanced cooperation between disciplines.

Several important aspects of Comelec research strategy and philosophy merit being highlighted:

  • Academic research and scientific production: The research is in part theoretical and "blue sky", situated in a medium/ long term vision, and in part with a more direct application orientation. In both cases it this leads to a solid production in terms of communications and publications, wich largely contributes to the visibility of Telecom ParisTech and of the joint  CNRS-LTCI laboratory.
  • Innovation and links with industrial research : scientific research in communications and information technologies (ICT) is among the strongest progress engines for déveloped societies, which provides powerful incentives towards innovation and favours strong links with industry and non public R&D. This context has encouraged valorisation of the research results and the departement owns a portfolio of patents, either fully owned (202 KB)or with third parties (86 KB). Comelec also supports start-up/spin-off companies, such as COMSIS or secure-IC. and is member of several joint laboratories (Identity & Security Alliance, WHIST, Com' Num Lab) with major industrial partnerships. It benefits from the favourable framework of the Institut Carnot Télécom & Société numérique.
  • International relations: most of the department research has a full visibility in an international context, through . This was recently enhanced, owing to the success in several european calls. 
  • Cooperation networks: the involvement of individual researchers in scientific networks collaboratifs is now quite essential for the dissemination of research as well as for cross-fertilization and the emergence of future collaborative projects. All Comelec groups are involved at various levels in national GDR platforms (GDR ISIS, GDR SOC-SIP, GDR Ondes), in national Labex (Digicosme, Smart), in COST european actions (COST IC1004, COST RFCSET), URSI and in french competitiveness clusters (Systematic, SCS). 

Strategic axes

Comelec has identified several scientific axes that are transverse to the groups and increasingly concentrate the research efforts of the department:

     

  • Digital trust - physical layer security and hardware-software safety: All societal, financial and commercial activities based on digital technologies rely on high standard security prerequisites, which are very much demanding for digital technologies in many societal areas in order to avoid rejection by users. Due to its impact, digital trust covers several research topics within the department and addresses the of protection of information in electronic components and of data exchanges within a radio link or towards the cloud.

  • All rate connectivity: from physics to systems: the increase of communication speeds and of the amount of data and the integration of an increasing number of multimedia technologies into more and more miniaturized and mobile universes require a technological effort at various system levels. This axis is structured in several topics, such as passive optical networks (PON) for metropolitan delivery of data to the user, analog/digital interfaces of embedded systemes and as reconfigurable architectures for future wireless network standards (LTE-A, 5G) and processing of interferences in these networks under a very strong frequency re-use. The internet of things, around RFIDs and body area networks are also part of the targeted applications.

  • All scale smart technologies : physical layer and flexibility: This axis leverages on nowadays performance of digital circuits, making possible the use of sophisticated algorithms that often operate in real time and which gain in associating with architectures reconfigurability . This results in an improved optimization of performances and/or of consumption, with applications for instance in software defined radio and opportunistic (cognitive) radio. At extremely high optical throughput, specialized post-reception algorithms help eliminate dispersion or polarization impairments, possibly soon of non linearities. Real time resource allocation and adaptative coding will also facilitate interference channels processing.
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Laboratories and technical platforms

Competitive technological research today requires sophisticated instruments and laboratory resources in order to achieve credible demonstrations, especially at high frequencies and at the extremely high data rates targeted by the existing and future information society. The department is equipped with several measurement platforms in the digital and analog domains, which are rejuvenated on a regular basis in order to maintain their capability and performance, according to project needs.

  • RF and millimeter wave laboratory: This technical platform has two facilities, one up to 8 GHz and the 2nd up to 67 GHz. Beyond basic instruments such as vector network analysers, it is fitted with a "source pull/load pull" non linear characterization bench for transistors up to 40 GHz (extension to 60 GHz upcoming)
  • Anechoïc roms : two anechoïc rooms allow to measure antennas from 800 MHz up to 60 GHz,
  • Digital and mixed systems electronics laboratory: this laboratory includes several facilities for the test of analog and digital circuits, either packaged or using high frequency probes, through logic analyzers or fast scopes. An original security test facility enabling assessing the resistance of a circuit to attacks on the integrity/confidentiality of data has also been developed, together with a measurement system of the reliability of a circuit under device failures,
  • Optical telecommunications laboratory: the laboratory is equipped with a test bench for fibre optics based ultra high rate communications systems, as well as an "optical low-coherence reflectometer" (OLCR) instrument, which allows to obtain an accurate and very informative characterization of defects in fibres and more generally in optical communications systems.
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