Title :
Concatenated coding and ARQ systems using TCM for Rayleigh fading
Author :
Tellambura, C. ; Bhargava, Vijay K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
Abstract :
Trellis coded modulation (TCM) schemes can be employed in conjunction with concatenated coding or automatic-repeat-request (ARQ) systems. The performance of such hybrid schemes operating in Rayleigh fading channels is addressed in the paper. The fading is assumed to be slow with respect to the symbol rate. New approximate error expressions are developed when a pilot tone is used to estimate the channel gain, and when the Viterbi decoding algorithm is modified such that side information can be generated to erase symbols or request retransmission
Keywords :
Rayleigh channels; Viterbi decoding; automatic repeat request; concatenated codes; error statistics; fading; parameter estimation; time-varying channels; trellis coded modulation; ARQ systems; Rayleigh fading channels; TCM; Viterbi decoding algorithm; approximate error expressions; automatic-repeat-request system; channel gain; concatenated coding; hybrid schemes; performance; pilot tone; side information; trellis coded modulation; AWGN; Automatic repeat request; Concatenated codes; Convolutional codes; Decoding; Fading; Modulation coding; Rayleigh channels; Reed-Solomon codes; Viterbi algorithm;
Conference_Titel :
Communications, 1994. ICC '94, SUPERCOMM/ICC '94, Conference Record, 'Serving Humanity Through Communications.' IEEE International Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-1825-0
DOI :
10.1109/ICC.1994.369031
