Title :
Serially concatenated trellis coded modulation for the compound periodic erasures channel
Author :
Köse, Cenk ; Weng, Wen-Yen ; Wesel, Richard D.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
This paper extends the near-capacity performance of serially-concatenated convolutional codes under AWGN to periodically time-varying channels. In particular, we propose serially-concatenated trellis-coded modulations (SCTCMs) that perform consistently close to channel capacity under periodic erasures as well as under AWGN, without sacrificing AWGN channel performance. The proposed 0.5 bits/symbol and 1.5 bits/symbol SCTCM schemes are robust with respect to periodic time-variations with a period of two-symbols.
Keywords :
AWGN channels; channel capacity; concatenated codes; convolutional codes; error statistics; iterative decoding; maximum likelihood decoding; time-varying channels; trellis coded modulation; AWGN channel; BER; Euclidean distance; SNR; additive white Gaussian noise; bit error rate; channel capacity; compound periodic erasures channel; iterative decoding; maximum-likelihood decoding; periodic time-variations; serially concatenated trellis coded modulation; signal-to-noise ratio; time-varying channels; AWGN channels; Attenuation; Bit error rate; Channel capacity; Concatenated codes; Convolutional codes; Gaussian channels; Modulation coding; Robustness; Turbo codes;
Conference_Titel :
Communications, 2003. ICC '03. IEEE International Conference on
Print_ISBN :
0-7803-7802-4
DOI :
10.1109/ICC.2003.1204585
