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February  2010, 4(1): 83-99. doi: 10.3934/amc.2010.4.83

Algebraic decoding for doubly cyclic convolutional codes

Heide Gluesing-Luerssen 1, , Uwe Helmke 2, and  José Ignacio Iglesias Curto 3,

1. 

Department of Mathematics, University of Kentucky, 715 Patterson Office Tower, Lexington, KY 40506-0027
2. 

Institut für Mathematik; Lehrstuhl für Mathematik II, Universität Würzburg, Am Hubland, 97074 Würzburg,, Germany
3. 

Departamento de Matemáticas, Universidad de Salamanca, Plaza de la Merced 1-4, 37008 Salamanca, Spain

Received  August 2009 Revised  November 2009 Published  February 2010

An iterative decoding algorithm for convolutional codes is presented. It successively processes $N$ consecutive blocks of the received word in order to decode the first block. A bound is presented showing which error configurations can be corrected. The algorithm can be efficiently used on a particular class of convolutional codes, known as doubly cyclic convolutional codes. Due to their highly algebraic structure those codes are well suited for the algorithm and the main step of the procedure can be carried out using Reed-Solomon decoding. Examples illustrate the decoding and a comparison with existing algorithms is made.
Keywords: Reed-Solomon decoding, algebraic decoding, list decoding., cyclic convolutional codes, Convolutional codes.
Mathematics Subject Classification: Primary: 94B10, 94B35; Secondary: 93B15, 93B2.
Citation: Heide Gluesing-Luerssen, Uwe Helmke, José Ignacio Iglesias Curto. Algebraic decoding for doubly cyclic convolutional codes. Advances in Mathematics of Communications, 2010, 4 (1) : 83-99. doi: 10.3934/amc.2010.4.83
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