caa a22 4500 445851740 CHVBK 20180317145415.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s11227-011-0587-3 doi (NATIONALLICENCE)springer-10.1007/s11227-011-0587-3 Tridimensional block multiword LDPC decoding onGPUs [Elektronische Daten] [F. Martínez-Zaldívar, A. Vidal-Maciá, Alberto Gonzalez, Vicenç Almenar] In this paper, we describe a parallel algorithm for LDPC (Low Density Parity Check codes) decoding on a GPU (Graphics Processing Unit) using CUDA (Compute Unified Device Architecture). The strategy of the kernel grid and block design is shown and the multiword decoding operation is described using tridimensional blocks. The performance (speedup) of the proposed parallel algorithm is slightly better than the performance found in the literature when this is relatively good, and shows a great improvement in those cases with previously reported moderate or bad performance. Springer Science+Business Media, LLC, 2011 LDPC nationallicence ECC nationallicence Multiword nationallicence GPU nationallicence CUDA nationallicence Sum-Product algorithm nationallicence Martínez-Zaldívar F. ITEAM-DCOM, Universidad Politécnica de Valencia, Valencia, Spain aut Vidal-Maciá A. INCO2-DSIC, Universidad Politécnica de Valencia, Valencia, Spain aut Gonzalez Alberto ITEAM-DCOM, Universidad Politécnica de Valencia, Valencia, Spain aut Almenar Vicenç ITEAM-DCOM, Universidad Politécnica de Valencia, Valencia, Spain aut The Journal of Supercomputing Springer US; http://www.springer-ny.com 58/3(2011-12-01), 314-322 0920-8542 58:3<314 2011 58 11227 https://doi.org/10.1007/s11227-011-0587-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11227-011-0587-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Martínez-Zaldívar F. ITEAM-DCOM, Universidad Politécnica de Valencia, Valencia, Spain aut NATIONALLICENCE 700 1- Vidal-Maciá A. INCO2-DSIC, Universidad Politécnica de Valencia, Valencia, Spain aut NATIONALLICENCE 700 1- Gonzalez Alberto ITEAM-DCOM, Universidad Politécnica de Valencia, Valencia, Spain aut NATIONALLICENCE 700 1- Almenar Vicenç ITEAM-DCOM, Universidad Politécnica de Valencia, Valencia, Spain aut NATIONALLICENCE 773 0- The Journal of Supercomputing Springer US; http://www.springer-ny.com 58/3(2011-12-01), 314-322 0920-8542 58:3<314 2011 58 11227 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer