On the tail effect of SOVA-based decoding for turbo codes

Lang Lin; R.S. Cheng

doi:10.1109/glocom.1997.638409

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JOURNAL ARTICLE

On the tail effect of SOVA-based decoding for turbo codes

Lang Lin R.S. Cheng

Year: 2002 Vol: 2 Pages: 644-648

DOI: 10.1109/glocom.1997.638409

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Abstract

As a suboptimal decoding algorithm for turbo codes, the soft output Viterbi algorithm (SOVA) has the tail effect which degrades its performance seriously. In this paper, we give a detailed description of the tail effect and provide two new block interleavers to mitigate the performance degradation.

Keywords:

Turbo code Computer science Decoding methods Soft output Viterbi algorithm Viterbi algorithm Viterbi decoder Turbo equalizer Serial concatenated convolutional codes Algorithm Block (permutation group theory) Turbo BCJR algorithm Convolutional code Concatenated error correction code Iterative Viterbi decoding Sequential decoding Degradation (telecommunications) Block code Computer engineering Telecommunications Mathematics Engineering

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Advanced Wireless Communication Techniques

Physical Sciences → Engineering → Electrical and Electronic Engineering

Error Correcting Code Techniques

Physical Sciences → Computer Science → Computer Networks and Communications

Advanced Adaptive Filtering Techniques

Physical Sciences → Engineering → Computational Mechanics

On the tail effect of SOVA-based decoding for turbo codes

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