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Enhanced Metric Sorting for Successive Cancellation List Decoding of Polar Codes
Li H(李桓)1,2; Li H(李桓)
Source PublicationIEEE COMMUNICATIONS LETTERS
2018-04
Volume22Issue:4Pages:664-667
Abstract

This letter focuses on the metric sorting step for successive cancellation list decoders for polar codes, which play an important role in the overall comparison process. We propose three effective pairwise metric sorting (PMS) methods based on general pairwise sorting. We first describe a full-sorted PMS architecture with fewer comparators than state-of-the-art methods. Second, we present a half-sorted PMS architecture for notable decreases in the number of comparison stages and augmentation of the comparisons. Finally, we describe the M-bit parallel decoding architecture, which significantly reduces the comparison stages when compared with the 1-bit sorting method of M times. Evaluation results indicate that the proposed PMS method outperforms state-of-the-art metric sorting methods in terms of comparisons and comparison stages, which effectively reduces latency and hardware resource.

KeywordPolar Codes Successive Cancellation List Decoding Metric Sorting Pairwise Sorting
DOI10.1109/LCOMM.2018.2803163
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/21038
Collection国家专用集成电路设计工程技术研究中心
Corresponding AuthorLi H(李桓)
Affiliation1.中国科学院大学
2.中国科学院自动化研究所
Recommended Citation
GB/T 7714
Li H,Li H. Enhanced Metric Sorting for Successive Cancellation List Decoding of Polar Codes[J]. IEEE COMMUNICATIONS LETTERS,2018,22(4):664-667.
APA Li H,&李桓.(2018).Enhanced Metric Sorting for Successive Cancellation List Decoding of Polar Codes.IEEE COMMUNICATIONS LETTERS,22(4),664-667.
MLA Li H,et al."Enhanced Metric Sorting for Successive Cancellation List Decoding of Polar Codes".IEEE COMMUNICATIONS LETTERS 22.4(2018):664-667.
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