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Abstract

A serial concatenated convolutional code (SCCC) decoder is provided. The SCCC decoder is comprised of an input buffer memory (102), one or more processing loop modules (120), and an output buffer memory (112). Each processing loop module is comprised of a permutation module (110), an inner decoder module (104), a depermutation module (106), and an outer decoder module (108). The inner decoder module is subdivided into two (2) or more inner decoding engines (202.sub.1-202.sub.N) configured for concurrently performing a decoding operation based on an inner convolutional code. The outer decoder module is subdivided into two (2) or more outer decoding engines (402.sub.1-402.sub.N) configured for concurrently performing a decoding operation based on an outer convolutional code. The inner convolutional code and the outer convolutional code are designed in accordance with a maximum aposteriori probability based decoding algorithm.

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