Title :
A novel ARQ technique using the turbo coding principle
Author :
Narayanan, Krishna R. ; Stüber, Gordon L.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
3/1/1997 12:00:00 AM
Abstract :
A novel automatic repeat request (ARQ) technique based on the turbo coding principle is presented. The technique uses the log-likelihood ratios generated by the decoder during a previous transmission as a priori information when decoding retransmissions. Simulation results show a significant decrease in frame error rate, especially at low-to-moderate E/sub b//N/sub 0/.
Keywords :
automatic repeat request; block codes; convolutional codes; data communication; decoding; error correction codes; interleaved codes; ARQ technique; a priori information; automatic repeat request; decoder; frame error rate; log-likelihood ratio; parallel concatenation; pseudorandom interleaver; recursive systematic convolutional codes; retransmissions decoding; turbo coding principle; AWGN; Additive white noise; Automatic repeat request; Bit error rate; Block codes; Convolutional codes; Error analysis; Iterative decoding; Maximum likelihood decoding; Turbo codes;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/4234.559361
