Soft-Decision Decoding for LDPC Code-Based Quantitative Group Testing
Fuente:
arXiv
Salvato in:
| Autori principali: | , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2025
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866910792297742336 |
|---|---|
| author | Xhemrishi, Marvin Östman, Johan Amat, Alexandre Graell i |
| author_facet | Xhemrishi, Marvin Östman, Johan Amat, Alexandre Graell i |
| contents | We consider the problem of identifying defective items in a population with non-adaptive quantitative group testing. For this scenario, Mashauri et al. recently proposed a low-density parity-check (LDPC) code-based quantitative group testing scheme with a hard-decision decoding approach (akin to peeling decoding). This scheme outperforms generalized LDPC code-based quantitative group testing schemes in terms of the misdetection rate. In this work, we propose a belief-propagation-based decoder for quantitative group testing with LDPC codes, where the messages being passed are purely soft. Through extensive simulations, we show that the proposed soft-information decoder outperforms the hard-decision decoder Mashauri et al. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_12167 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Soft-Decision Decoding for LDPC Code-Based Quantitative Group Testing Xhemrishi, Marvin Östman, Johan Amat, Alexandre Graell i Information Theory We consider the problem of identifying defective items in a population with non-adaptive quantitative group testing. For this scenario, Mashauri et al. recently proposed a low-density parity-check (LDPC) code-based quantitative group testing scheme with a hard-decision decoding approach (akin to peeling decoding). This scheme outperforms generalized LDPC code-based quantitative group testing schemes in terms of the misdetection rate. In this work, we propose a belief-propagation-based decoder for quantitative group testing with LDPC codes, where the messages being passed are purely soft. Through extensive simulations, we show that the proposed soft-information decoder outperforms the hard-decision decoder Mashauri et al. |
| title | Soft-Decision Decoding for LDPC Code-Based Quantitative Group Testing |
| topic | Information Theory |
| url | https://arxiv.org/abs/2501.12167 |