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Low-Density Parity-...
Low-Density Parity-Check Codes and Spatial Coupling for Quantitative Group Testing
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- Mashauri, Mgeni Makambi (författare)
- Lund University,Lunds universitet,Kommunikationsteknologi,Forskargrupper vid Lunds universitet,LTH profilområde: AI och digitalisering,LTH profilområden,Lunds Tekniska Högskola,Communications Engineering,Lund University Research Groups,LTH Profile Area: AI and Digitalization,LTH Profile areas,Faculty of Engineering, LTH
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- Graell I Amat, Alexandre, 1976 (författare)
- Chalmers University of Technology,Chalmers tekniska högskola
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- Lentmaier, Michael (författare)
- Lund University,Lunds universitet,Trådlös kommunikation (master),Utbildningsprogram, LTH,Lunds Tekniska Högskola,Kommunikationsteknologi,Forskargrupper vid Lunds universitet,LTH profilområde: AI och digitalisering,LTH profilområden,Wireless communication (M.Sc.),Educational programmes, LTH,Faculty of Engineering, LTH,Communications Engineering,Lund University Research Groups,LTH Profile Area: AI and Digitalization,LTH Profile areas,Faculty of Engineering, LTH
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(creator_code:org_t)
- 2023
- 2023
- Engelska.
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Ingår i: IEEE International Symposium on Information Theory (ISIT. - 9781665475549 - 9781665475556 ; 2023-June, s. 1860-1865
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Abstract
Ämnesord
Stäng
- A non-adaptive quantitative group testing (GT) scheme based on sparse codes-on-graphs in combination with low-complexity peeling decoding was introduced and analyzed by Karimi et al.. In this work, we propose a variant of this scheme based on low-density parity-check codes where the BCH codes at the constraint nodes are replaced by simple single parity-check codes. Furthermore, we apply spatial coupling to both GT schemes, perform a density evolution analysis, and compare their performance with and without coupling. Our analysis shows that both schemes improve with increasing coupling memory, and for all considered cases, it is observed that the LDPC code-based scheme substantially outperforms the original scheme. Simulation results for finite block length confirm the asymptotic density evolution thresholds.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
Nyckelord
- Group testing, Spatial Coupling, Low density parity checl codes, LDPC, GLDPC
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)
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