Flexible Radio Interface for NoC RF-Interconnect
Frédéric Drillet, Mohamad Hamieh, Lounis Zerioul, Alexandre Brière, Eren Unlu, Myriam Ariaudo, Yves Louët, Emmanuelle Bourdel, Julien Denoulet, Andréa Pinna, Bertrand Granado, Patrick F. Garda, François Pêcheux, Cédric Duperrier, Sébastien Quintanel, Philippe Meunier, Christophe Moy, Olivier Romain · 2014
This paper introduces flexible radio techniques inside integrated circuits in order to tackle the interconnect issue for many-core chips. We propose to take benefits from OFDMA for a RF-interconnect associated to a carrier allocation policy and adaptive modulation. A 20 GHz bandwidth is shared between 32 tile sets made of 32 tiles of 4 cores each, for a 4096 cores chip. We adopt a cognitive radio approach in order to dynamically share 1024 carriers, which avoids inter-cluster communication contention and decreases latency compared to conventional static approaches.