Title :
A turbo decoder soft-ARQ scheme
Author :
Grosvenor, Jihad ; Sodha, Janak
Author_Institution :
Dept. of Comput. Sci., Math. & Phys., West Indies Univ., Cave Hill, Barbados
Abstract :
An automatic repeat request scheme is presented for a turbo decoder which requests a retransmission of a given frame only if the decoder is likely to make a large number of decoding errors. This is achieved without any alteration of the encoding and decoding process by monitoring a probability surface metric within the decoder. Simulation results are presented for the standard rate 1/2 (7, 5, 1024) turbo code.
Keywords :
automatic repeat request; coding errors; decoding; error statistics; probability; turbo codes; automatic repeat request scheme; decoding errors; encoding process; probability surface metric; soft-ARQ scheme; turbo code; turbo decoder; AWGN; Automatic repeat request; Binary phase shift keying; Computer errors; Computer science; Encoding; Iterative decoding; Mathematics; Physics; Turbo codes;
Conference_Titel :
Communication Technology Proceedings, 2003. ICCT 2003. International Conference on
Print_ISBN :
7-5635-0686-1
DOI :
10.1109/ICCT.2003.1209816
