Transmitter for SDR BTS must be able to handle multicarrier or simultaneous transmission of different standards, thus they require being wideband (either agile or switchable) and having high transmit power to fulfil stringent constraints regarding both transmission power and bandwidth. Various architecture have to be revisited ranging from Cartesian (Doherty solutions, envelope tracking), LINC, or polar architecture Envelope Elimination and Restoration. Key points about the added value of including signal processing in the transmit path will be to consider: predistortion correction, crest reduction factor, non linear modelisation of PA, High level modelisation of analog parts and Bandwidth of processing.
Description:
Academic organization : ESIEE
Send application letter and CV to : o.venard[ at ]esiee.fr and c.berland[ at ]esiee.fr
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