Title :
Multilevel coding with the 8-PSK signal set
Author_Institution :
Dept. of Inf. Theory, Lund Univ., Sweden
Abstract :
Simulation results for concatenated outer Reed-Solomon and inner convolutional codes used in multilevel schemes are presented. Different high-rate inner convolutional codes are considered, viz., punctured codes and partial unit memory (PUM) codes. The best results are obtained for PUM codes, since they have a better extended row distance profile. The effect of channel and block interleaving at the different levels is also studied, and iterative decoding is tried. The system transmits signals over the AWGN channel
Keywords :
Gaussian channels; Reed-Solomon codes; concatenated codes; convolutional codes; decoding; interleaved codes; iterative methods; modulation coding; phase shift keying; 8-PSK signal set; AWGN channel; block interleaving; channel interleaving; concatenated outer Reed-Solomon codes; high rate inner convolutional codes; iterative decoding; multilevel coding; partial unit memory codes; punctured codes; row distance profile; simulation results; Bit error rate; Concatenated codes; Convolution; Convolutional codes; Error correction codes; Information theory; Interleaved codes; Maximum likelihood decoding; Reed-Solomon codes; Testing;
Conference_Titel :
Information Theory, 1995. Proceedings., 1995 IEEE International Symposium on
Conference_Location :
Whistler, BC
Print_ISBN :
0-7803-2453-6
DOI :
10.1109/ISIT.1995.531161
