Title :
Contention-free interleavers
Author :
Nimbalker, A. ; Fuja, T.E. ; Costello, D.J., Jr. ; Blankenship, T.K. ; Classon, B.
Author_Institution :
Dept. of Electr. Eng., Notre Dame Univ., IN, USA
fDate :
27 June-2 July 2004
Abstract :
Interleavers that avoid memory contentions in parallelized log-MAP decoding are analyzed and designed. Bounds are derived demonstrating that the fraction of interleavers that are contention-free is small. Nevertheless, contention-free "inter-window shuffle" interleavers with a simple implementation and reasonable memory requirements are shown to surpass 3GPP performance.
Keywords :
AWGN channels; error statistics; interleaved codes; maximum likelihood decoding; turbo codes; contention-free interleavers; inter-window shuffle; parallelized log-MAP decoding; turbo codes; AWGN channels; Clocks; Decoding; Delay; Interleaved codes; NASA; Table lookup; Throughput; Upper bound; Writing;
Conference_Titel :
Information Theory, 2004. ISIT 2004. Proceedings. International Symposium on
Print_ISBN :
0-7803-8280-3
DOI :
10.1109/ISIT.2004.1365089
