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Spatially Coupled G...
Spatially Coupled Generalized LDPC Codes : Asymptotic Analysis and Finite Length Scaling
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- Mitchell, David G.M. (författare)
- New Mexico State University
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- Olmos, Pablo M. (författare)
- Carlos III University of Madrid
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- Lentmaier, Michael (författare)
- Lund University,Lunds universitet,Kommunikationsteknologi,Forskargrupper vid Lunds universitet,Communications Engineering,Lund University Research Groups
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- Costello, Daniel J. (författare)
- University of Notre Dame
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(creator_code:org_t)
- 2021
- 2021
- Engelska 16 s.
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Ingår i: IEEE Transactions on Information Theory. - 0018-9448. ; 67:6, s. 3708-3723
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Generalized low-density parity-check (GLDPC) codes are a class of LDPC codes in which the standard single parity check (SPC) constraints are replaced by constraints defined by a linear block code. These stronger constraints typically result in improved error floor performance, due to better minimum distance and trapping set properties, at a cost of some increased decoding complexity. In this paper, we study spatially coupled generalized low-density parity-check (SC-GLDPC) codes and present a comprehensive analysis of these codes, including: (1) an iterative decoding threshold analysis of SC-GLDPC code ensembles demonstrating capacity approaching thresholds via the threshold saturation effect; (2) an asymptotic analysis of the minimum distance and free distance properties of SC-GLDPC code ensembles, demonstrating that the ensembles are asymptotically good; and (3) an analysis of the finite-length scaling behavior of both GLDPC block codes and SC-GLDPC codes based on a peeling decoder (PD) operating on a binary erasure channel (BEC). Results are compared to GLDPC block codes, and the advantages and disadvantages of SC-GLDPC codes are discussed.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- Block codes
- Complexity theory
- Convolutional codes
- Electronic mail
- finite length scaling
- Generalized LDPC codes
- Iterative decoding
- iterative decoding thresholds
- Maximum likelihood decoding
- Message passing
- minimum distance
- spatially coupled codes
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