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Interleaver Design for Turbo Codes

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arxiv math/0207209 v1 pith:GZE3WS6T submitted 2002-07-23 math.CO cs.ITmath.IT

classification math.COcs.ITmath.IT
keywords interleaverdesignturbocodesblockcodecriterialength
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The performance of a Turbo code with short block length depends critically on the interleaver design. There are two major criteria in the design of an interleaver: the distance spectrum of the code and the correlation between the information input data and the soft output of each decoder corresponding to its parity bits. This paper describes a new interleaver design for Turbo codes with short block length based on these two criteria. A deterministic interleaver suitable for Turbo codes is also described. Simulation results compare the new interleaver design to different existing interleavers.

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