Title :
Separable MAP “filters” for the decoding of product and concatenated codes
Author :
Lodge, J. ; Young, R. ; Hoeher, P. ; Hagenauer, J.
Author_Institution :
Commun. Res. Centre, Ottawa, Ont., Canada
Abstract :
Very efficient signaling in radio channels requires the design of very powerful codes having special structure suitable for practical decoding schemes. Powerful codes are obtained by using simple block codes to construct multidimensional product codes. The decoding of multidimensional product codes, using separable symbol-by-symbol maximum a posteriori filters, is described. Simulation results are presented for three-dimensional product codes constructed with the (16,11) extended Hamming code. The extension of the concept to concatenated convolutional codes is given and some simulation results are presented. Potential applications are briefly discussed
Keywords :
Hamming codes; block codes; concatenated codes; convolutional codes; maximum likelihood decoding; maximum likelihood estimation; multidimensional digital filters; radiocommunication; telecommunication channels; telecommunication signalling; MAP filters; block codes; concatenated convolutional codes; decoding schemes; multidimensional product codes; radio channels; separable symbol-by-symbol maximum a posteriori filters; signaling; simulation results; Block codes; Concatenated codes; Convolution; Convolutional codes; Decoding; Filters; Multidimensional systems; Product codes; Reed-Solomon codes; Signal design;
Conference_Titel :
Communications, 1993. ICC '93 Geneva. Technical Program, Conference Record, IEEE International Conference on
Conference_Location :
Geneva
Print_ISBN :
0-7803-0950-2
DOI :
10.1109/ICC.1993.397580
