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- W2092136075 abstract "Turbo decoders inherently have large decoding latency and low throughput due to iterative decoding. To increase the throughput and reduce the latency, high-speed decoding schemes have to be employed. In this paper, following a discussion on basic parallel decoding architectures, the segmented sliding window approach and two other types of area-efficient parallel decoding schemes are proposed. Detailed comparison on storage requirement, number of computation units, and the overall decoding latency is provided for various decoding schemes with different levels of parallelism. Hybrid parallel decoding schemes are proposed as an attractive solution for very high level parallelism implementations. To reduce the storage bottleneck for each subdecoder, a modified version of the partial storage of state metrics approach is presented. The new approach achieves a better tradeoff between storage part and recomputation part in general. The application of the pipeline-interleaving technique to parallel turbo decoding architectures is also presented. Simulation results demonstrate that the proposed area-efficient parallel decoding schemes do not cause performance degradation." @default.
- W2092136075 created "2016-06-24" @default.
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- W2092136075 date "2002-12-01" @default.
- W2092136075 modified "2023-10-16" @default.
- W2092136075 title "Area-efficient high-speed decoding schemes for turbo decoders" @default.
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- W2092136075 doi "https://doi.org/10.1109/tvlsi.2002.808451" @default.
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