Title :
Trellis-coded, type-I hybrid-ARQ protocols based on CRC error-detecting codes
Author :
Rasmussen, Lars K. ; Wicker, Stephen B.
Author_Institution :
Mobile Commun. Res. Centre, South Australia Univ., The Levels, SA, Australia
fDate :
10/1/1995 12:00:00 AM
Abstract :
A trellis-coded, type-I hybrid-ARQ protocol using CRC codes as the error-detecting mechanism is described and analyzed. Bounds on both the reliability and throughput performance of the resulting error-control scheme are derived for AWGN channels and slowly fading Rician channels. Examples are included to illustrate the achievable gain of the proposed system relative to ordinary FEC trellis-coded systems. For slowly fading Rician channels, hybrid-ARQ protocols based on ordinary trellis-coded modulation and multiple trellis-coded modulation are also compared. All analytical results are supported by data from a series of simulations
Keywords :
Gaussian channels; Rician channels; automatic repeat request; cyclic codes; error detection codes; fading; protocols; trellis coded modulation; AWGN channels; CRC error-detecting codes; FEC trellis-coded systems; bounds; cyclic redundancy check codes; error-control scheme; gain; reliability; simulations; slowly fading Rician channels; throughput performance; trellis-coded modulation; type-I hybrid-ARQ protocols; Bit error rate; Concatenated codes; Cyclic redundancy check; Decoding; Fading; Forward error correction; Protocols; Rician channels; Throughput; Viterbi algorithm;
Journal_Title :
Communications, IEEE Transactions on
