High-performance low-memory interleaver banks for turbo-codes
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United States of America Patent
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Feb 15, 2005
Grant Date -
Feb 13, 2003
app pub date -
Jun 7, 2002
filing date -
Jun 11, 2001
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Abstract
An interleaver for interleaving a set of K ordered elements is disclosed herein. The disclosed interleaver can be expressed as a single permutation that corresponds to two local dithering operations and a global permutation operation. The single permutation can be represented as a small collection of short vectors, and can be calculated recursively, allowing the interleaver to be both stored and implemented using a smaller amount of memory than conventionally possible.
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