Title :
q-ary turbo codes with QAM modulations
Author :
Chang, Yuwei ; Wei, Victor Keh-wei
Author_Institution :
Dept. of Electron. Eng., Jiao Tong Univ., Shanghai, China
fDate :
29 Sep-2 Oct 1996
Abstract :
In this paper a kind of q-ary (q=2t) turbo codes with the corresponding decoding algorithm are addressed. In addition, a method how to reduce the average number of iterations is discussed. When combined with 16 QAM and 64 QAM modulations, compared with the corresponding binary turbo code, the new coding scheme provides a substantial coding gain on additive white Gaussian noise channels
Keywords :
Galois fields; Gaussian channels; concatenated codes; convolutional codes; decoding; interleaved codes; quadrature amplitude modulation; white noise; 16 QAM; 64 QAM; AWGN channel; QAM modulation; additive white Gaussian noise channels; average number of iterations; coding gain; concatenation codes; decoding algorithm; interleaving; q-ary turbo codes; recursive systematic convolutional code; Additive white noise; Binary codes; Gaussian noise; Interleaved codes; Iterative decoding; Loss measurement; Modulation coding; Parity check codes; Quadrature amplitude modulation; Turbo codes;
Conference_Titel :
Universal Personal Communications, 1996. Record., 1996 5th IEEE International Conference on
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-3300-4
DOI :
10.1109/ICUPC.1996.562689
