Title :
Bandwidth efficient concatenated coding schemes for fading channels
Author_Institution :
Dept. of Electr. Eng., Sydney Univ., NSW, Australia
fDate :
1/1/1993 12:00:00 AM
Abstract :
Concatenated codes consisting of trellis inner codes and Reed-Solomon outer codes are considered to achieve large coding gains with small bandwidth expansion in the presence of frequency-nonselective slow Rician fading. Both errors-only and errors-erasures decoding algorithms for outer codes are applied. New upper bounds on bit error probability performance in the presence of fading are obtained and compared with simulation results for zero channel memory. The effect of interleaving in eliminating channel memory is investigated. The performance gains that are achieved by the coding scheme relative to the reference uncoded systems are illustrated via some examples
Keywords :
Reed-Solomon codes; decoding; encoding; error correction codes; error statistics; fading; telecommunication channels; trellis codes; Reed-Solomon outer codes; Rician fading; bandwidth efficient coding; bit error probability; concatenated codes; errors-erasures decoding algorithms; errors-only decoding algorithms; fading channels; interleaving; trellis inner codes; upper bounds; zero channel memory; Bandwidth; Concatenated codes; Decoding; Error probability; Fading; Frequency; Interleaved codes; Reed-Solomon codes; Rician channels; Upper bound;
Journal_Title :
Communications, IEEE Transactions on
