Title :
Optimal design of trellis coded quantization based on reliability information of turbo trellis coded modulation
Author :
Wu, Yao-Jun ; Ogiwara, Haruo
Author_Institution :
Dept. of Electr. Eng., Nagaoka Univ. of Technol., Japan
Abstract :
Turbo trellis-coded modulation (TCM) with code matched interleaver (CMI) is applied to develop a trellis coded quantization (TCQ). It can been shown that TCQ of memoryless Gaussian sources results in substantial improvement of performance with iterative decoding of turbo TCM and iterative optimization of minimum overall distortion between the source input and decoding output. Numerical results indicate substantial improvement of performance because optimal TCQ based on turbo TCM can be achieved at moderate to high signal-to-noise ratio (SNR) on an additive white Gaussian noise (AWGN) channel for a memoryless Gaussian source and a memoryless uniform source.
Keywords :
AWGN channels; combined source-channel coding; interleaved codes; iterative decoding; optimisation; quantisation (signal); trellis coded modulation; turbo codes; AWGN channel; SNR; additive white Gaussian noise channel; code matched interleaver; iterative decoding; iterative optimization; joint source channel coding; memoryless Gaussian sources; memoryless uniform source; reliability information; signal-to-noise ratio; trellis coded quantization; turbo TCM; turbo trellis coded modulation; AWGN; Additive white noise; Algorithm design and analysis; Electrical capacitance tomography; Gaussian noise; Iterative algorithms; Iterative decoding; Modulation coding; Quantization; Signal to noise ratio;
Conference_Titel :
Communications, 2002. ICC 2002. IEEE International Conference on
Print_ISBN :
0-7803-7400-2
DOI :
10.1109/ICC.2002.996961
