Improving Image Transmission by Using Polar Codes and Successive Cancellation List Decoding

Autor:	Valdemar C. da Rocha, Maria de Lourdes M. G. Alcoforado, Alvaro Mauricio Aviles Garcia, Francisco Madeiro
Rok vydání:	2020
Předmět:	symbols.namesake Additive white Gaussian noise Transmission (telecommunications) Polar code Computer science symbols Code (cryptography) Ocean Engineering Encoder Peak signal-to-noise ratio Algorithm Decoding methods Block (data storage)
Zdroj:	Annals of Disaster Risk Sciences : ADRS Volume 3 Issue 1
ISSN:	2623-8934 2584-4873
DOI:	10.51381/adrs.v3i1.41
Popis:	This paper investigates the transmission of grey scale images encoded with polar codes and de-coded with successive cancellation list (SCL) decoders in the presence of additive white Gaussian noise. Po-lar codes seem a natural choice for this application be-cause of their error-correction efficiency combined with fast decoding. Computer simulations are carried out for evaluating the influence of different code block lengths in the quality of the decoded images. At the encoder a default polar code construction is used in combination with binary phase shift keying modulation. The results are compared with those obtained by using the clas-sic successive cancellation (SC) decoding introduced by Arikan. The quality of the reconstructed images is assessed by using peak signal to noise ratio (PSNR) and the structural similarity (SSIM) index. Curves of PSNR and SSIM versus code block length are presented il-lustrating the improvement in performance of SCL in comparison with SC.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbdec3b8d3e32e1d46915a59857639f9 https://doi.org/10.51381/adrs.v3i1.41 Zobrazit plný text záznamu