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Efficient implementation of multiuser precoding algorithms on GPU for MIMO-OFDM systems

Fernando Domene, Sandra Roger, Carla Ramiro, Gema Pinero, Alberto Gonzalez
Instituto de Telecomunicaciones y Aplicaciones Multimedia (iTEAM), Universitat Politecnica de Valencia
Simposium Nacional de la Union Cientifica Internacional de Radio (URSI), 2012

@article{domene2012efficient,

   title={Efficient implementation of multiuser precoding algorithms on GPU for MIMO-OFDM systems},

   author={Domene, F. and Roger, S. and Ramiro, C. and Pinero, G. and Gonzalez, A.},

   year={2012}

}

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In this paper, we focus on the signal precoding stage in multiuser multicarrier systems, which can be often a computationally expensive task. In order to reduce their computational time, the implementation of some of the most employed multiuser precoding algorithms on a general purpose Graphic Processing Unit (GPU) is presented. These devices allow for a high level of parallel processing that can accelerate the time required for the signal precoding calculation. Results show that a speed-up of up to 4 is achieved when comparing the implementation on GPU with the conventional execution on a high performance CPU.
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