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Generalized Two-Mag...
Generalized Two-Magnitude Check Node Updating with Self Correction for 5G LDPC Codes Decoding
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- Zhou, Wei (författare)
- Lund University,Lunds universitet,Kommunikationsteknologi,Forskargrupper vid Lunds universitet,Communications Engineering,Lund University Research Groups
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- Lentmaier, Michael (författare)
- Lund University,Lunds universitet,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Kommunikationsteknologi,Forskargrupper vid Lunds universitet,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH,Communications Engineering,Lund University Research Groups
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(creator_code:org_t)
- 2019
- 2019
- Engelska.
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Ingår i: SCC 2019 - 12th International ITG Conference on Systems, Communications and Coding. - 9783800748983 - 9783800748624 ; , s. 274-279
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http://dx.doi.org/10...
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Abstract
Ämnesord
Stäng
- The min-sum (MS) and approximate-min* (a-min*) algorithms are alternatives of the belief propagation (BP) algorithm for decoding low-density parity-check (LDPC) codes. To lower the BP decoding complexity, both algorithms compute two magnitudes at each check node (CN) and pass them to the neighboring variable nodes (VNs).In this work we propose a new algorithm, ga-min*, that generalizes the MS and a-min* in terms of number of incoming messages to a CN.We analyze and demonstrate a condition to improve the performance when applying self-correction to the ga-min*. Simulations on 5G LDPC codes show that the proposed decoding algorithm yields comparable performance to the a-min* with a significant reduction in complexity, and it is robust against LLR mismatch.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Kommunikationssystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Communication Systems (hsv//eng)
Nyckelord
- LDPC codes
- Iterative Decoding
- Generalized Min Sum
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)
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