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SOCRATE Research team

Software and Cognitive radio for telecommunications

Team presentation

The Socrate team part of the Citi laboratory located in Lyon, targets the emerging domain of software and cognitive radio. The team gathers research skills in computer science, signal processing and radio propagation; it is associated with three IT teaching departments of Insa-Lyon Engineering school.

A Software-Defined Radio SDR system is a radio communication system in which computations that in the past were typically implemented in hardware (e.g. mixers, filters, amplifiers, modulators/demodulators, detectors, etc.) are instead implemented as software programs. The SDR technology opens the door to cognitive radio: smart radio transceivers that can adapt to the radio environment and cooperate with other SDR equipements.

The goal of Socrate is to maintain an up-to-date knowledge of these technologies to propose innovative solution to the research challenges concerning Architecture and Software for SDR systems as well as distributed signal processing algorithms used in cognitive radio. The scientific added value of Socrate will come from the collaboration between technological (i.e. radio and waveform) scientists and embedded software researchers.

Research themes

Socrate is organised along the following three axes:

  • Flexible Radio Front-End: What will be radio system front-ends in next generation communication handhelds or embedded devices ?
  • Agile Radio Resource Sharing: How the distributed signal processing algorithms will enhance performance and reduce the power consumption of communicating systems?
  • Software Radio Programming Model: Which programming model will be used for these software radio communicating objects ?

Keywords: Software-Defined Radio Cognitive Radio Internet of Things Radio Resource Management Radio Resource Sharing Modeling Optimization Wireless Networking Architecture Operating Systems Wireless Systems Wireless Sensor and Actuator Networks Distributed and Localized Algorithms Spectrum sharing Spectrum sensing