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Two-Step Metric Sorting for Parallel Successive Cancellation List Decoding of Polar Codes | IEEE Journals & Magazine | IEEE Xplore

Two-Step Metric Sorting for Parallel Successive Cancellation List Decoding of Polar Codes


Abstract:

In terms of overall latency, one of the main bottlenecks of successive cancellation list (SCL) decoding of polar codes is the path pruning unit (PPU), whose goal is to pr...Show More

Abstract:

In terms of overall latency, one of the main bottlenecks of successive cancellation list (SCL) decoding of polar codes is the path pruning unit (PPU), whose goal is to prune 2L paths to L paths. To remedy this shortcoming, we propose a two-step metric sorter adapted to a parallel implementation of SCL decoding. We describe our sorter architecture and we show that our proposed solution outperforms the state-of-the-art PPUs in terms of area and latency reduction.
Published in: IEEE Communications Letters ( Volume: 21, Issue: 3, March 2017)
Page(s): 456 - 459
Date of Publication: 24 November 2016

ISSN Information:


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