32 research outputs found

    Matem脿tiques que milloren la comunicaci贸

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    El soroll indesitjat en la comunicaci贸 digital distorsiona el missatge a transmetre, per la qual cosa els investigadors estudien com dissenyar bons codis de canal, una eina matem脿tica que permet detectar i corregir els errors que es produeixen en la transmissi贸 d'informaci贸. Investigadors de la UAB han aconseguit definir nous codis de canal que permeten d'obtenir millors par脿metres de qualitat.El ruido indeseado en la comunicaci贸n digital distorsiona el mensaje que se transmite, por lo que los investigadores estudian c贸mo dise帽ar buenos c贸digos de canal, una herramienta matem谩tica que permite detectar y corregir los errores que se producen en la transmisi贸n de informaci贸n. Investigadores de la UAB han conseguido definir nuevos c贸digos de canal que permiten obtener mejores par谩metros de calidad

    Performance of FEC codes over AWGN channel for efficient use in Polymer Optical Fiber links

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    Volume 1 Issue 7 (September 2013

    Decoding of Projective Reed-Muller Codes by Dividing a Projective Space into Affine Spaces

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    A projective Reed-Muller (PRM) code, obtained by modifying a (classical) Reed-Muller code with respect to a projective space, is a doubly extended Reed-Solomon code when the dimension of the related projective space is equal to 1. The minimum distance and dual code of a PRM code are known, and some decoding examples have been represented for low-dimensional projective space. In this study, we construct a decoding algorithm for all PRM codes by dividing a projective space into a union of affine spaces. In addition, we determine the computational complexity and the number of errors correctable of our algorithm. Finally, we compare the codeword error rate of our algorithm with that of minimum distance decoding.Comment: 17 pages, 4 figure
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