Title :
The application of Walsh transform for forward error correction
Author :
Marvasti, F. ; Hung, M. ; Nakhai, M.R.
Author_Institution :
Dept. of Electron., King´´s Coll., London, UK
Abstract :
We present a novel class of forward error correcting codes constructed using the discrete Walsh transform. They are a class of double-error correcting codes defined on the field of real numbers. An iterative decoding algorithm for Walsh transform codes is developed and implemented. The error correcting performance of Walsh transform codes over an AWGN channel is evaluated. Selected Walsh transform code parameters are compared to those of the well-known BCH and RS codes
Keywords :
AWGN channels; discrete transforms; error correction codes; forward error correction; iterative decoding; AWGN channel; BCH codes; MFSK modulation; RS codes; Walsh transform codes; code parameters; discrete Walsh transform; double-error correcting code; erasure channels; error correcting performance; forward error correcting codes; iterative decoding algorithm; real numbers; AWGN channels; Additive noise; Discrete transforms; Discrete wavelet transforms; Educational institutions; Error correction; Error correction codes; Forward error correction; Iterative algorithms; Iterative decoding;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1999. Proceedings., 1999 IEEE International Conference on
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-5041-3
DOI :
10.1109/ICASSP.1999.760628
