Title :
Computing weight spectra of convolutional codes with MAPLE
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
Abstract :
Presents the first twelve weight spectra of some optimal, rate 1/2 to 1/8, convolutional codes with constraint lengths from 3 to 8. The main task is accomplished by using the software MAPLE to solve sets of symbolic equations. In particular, the results for code rate 1/2, 1/3 and 1/4 match to those available in the literature. The data obtained can be utilized to upper-bound the performance of a convolutionally coded system which uses the Viterbi algorithm for either soft-decision or hard-decision decoding
Keywords :
convolutional codes; decoding; spectral analysis; telecommunications computing; MAPLE; Viterbi algorithm; constraint lengths; convolutional codes; hard-decision decoding; performance; soft decision decoding; software; symbolic equations; weight spectra; Bit error rate; Computer simulation; Convolution; Convolutional codes; Decoding; Equations; Paper technology; Transfer functions; Very large scale integration; Viterbi algorithm;
Conference_Titel :
Singapore ICCS/ISITA '92. 'Communications on the Move'
Print_ISBN :
0-7803-0803-4
DOI :
10.1109/ICCS.1992.255152
