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Parallelization of Sphere-Decoding Methods

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High Performance Computing for Computational Science - VECPAR 2008 (VECPAR 2008)

Part of the book series: Lecture Notes in Computer Science ((LNTCS,volume 5336))

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Abstract

Sphere-Decoding (SD) methods are branch-and-bound-like techniques used for optimal detection of digital communications signals over in wireless MIMO (Multiple input Multiple Output) channels. These methods look for the optimal solution in a tree of partial solutions; the size of the tree depends on the parameters of the problem (dimension of the channel matrix, cardinality of the alphabet), and such search can be much more expensive depending on these parameters. This search often has to be carried out in real time. This paper presents parallel versions of the Sphere-Decoding method for different parallel architectures with the goal of reducing the computation time.

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Author information

Authors and Affiliations

  1. Departamento de Sistemas Informáticos y Computación, Universidad Politécnica de Valencia, Camino de Vera s/n, 46022, Valencia, España

    Rafael A. Trujillo, Antonio M. Vidal & Víctor M. García

  2. Departamento de Técnicas de Programación, Universidad de las Ciencias Informáticas, Carretera a San Antonio de los Baños Km 2 s/n, La Habana, Cuba

    Rafael A. Trujillo

  3. Departamento de Comunicaciones, Universidad Politécnica de Valencia, Camino de Vera s/n, 46022, Valencia, España

    Alberto González

Authors
  1. Rafael A. Trujillo
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  2. Antonio M. Vidal
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  3. Víctor M. García
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  4. Alberto González
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Editor information

Editors and Affiliations

  1. Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465, Porto, Portugal

    José M. Laginha M. Palma

  2. University of Toulouse, INP (ENSEEIHT), IRIT, 2 rue Charles-Camichel, 31071, Toulouse CEDEX 7, France

    Patrick R. Amestoy

  3. University of Toulouse, INP (ENSEEIHT); IRIT, rue Charles-Camichel, 31071, Toulouse CEDEX 7, France

    Michel Daydé

  4. Federal University of Rio de Janeiro, P.O. Box 68511, 21941-972, Rio de Janeiro, RJ, Brazil

    Marta Mattoso

  5. Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, s/n, 4200-465, Porto, Portugal

    João Correia Lopes

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© 2008 Springer-Verlag Berlin Heidelberg

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Trujillo, R.A., Vidal, A.M., García, V.M., González, A. (2008). Parallelization of Sphere-Decoding Methods. In: Palma, J.M.L.M., Amestoy, P.R., Daydé, M., Mattoso, M., Lopes, J.C. (eds) High Performance Computing for Computational Science - VECPAR 2008. VECPAR 2008. Lecture Notes in Computer Science, vol 5336. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-92859-1_2

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  • DOI: https://doi.org/10.1007/978-3-540-92859-1_2

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-92858-4

  • Online ISBN: 978-3-540-92859-1

  • eBook Packages: Computer ScienceComputer Science (R0)

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