Title :
Hybrid ARQ with Incremental Redundant Index Assignments for Iterative Source-Channel Decoding
Author :
Clevorn, Thorsten ; Schmalen, Laurent ; Vary, Peter ; Adrat, Marc
Author_Institution :
Design Center NRW, Infineon Technol. AG, Duisburg, Germany
Abstract :
Iterative source-channel decoding (ISCD) exploits the residual redundancy of source codec parameters by using the Turbo principle. In this paper we extend the excellent capabilities of ISCD to a hybrid automatic repeat request (HARQ) scheme by novel incremental redundant index assignments. The incremental redundancy for HARQ is supplied by the source encoder and not the channel encoder. Simulation results show an excellent performance over a wide range of channel conditions, with inherently adapted bandwidth and complexity.
Keywords :
automatic repeat request; channel coding; iterative decoding; source coding; hybrid automatic repeat request scheme; incremental redundant index assignments; iterative source-channel decoding; source codec parameters; turbo principle; Automatic repeat request; Communications Society; Computational complexity; Convolutional codes; Cyclic redundancy check; Data processing; Iterative decoding; Multiaccess communication; Paper technology; Speech;
Conference_Titel :
Communications (ICC), 2010 IEEE International Conference on
Conference_Location :
Cape Town
Print_ISBN :
978-1-4244-6402-9
DOI :
10.1109/ICC.2010.5502225
