An Unequal Error Protection of Quasi-Cyclic Low Density Parity Check (QC-LDPC) Codes Based on Combinatorial Designs

Autor:	Sina Vafi, Bijaya Paudel
Rok vydání:	2019
Předmět:	Parity-check matrix Combinatorial design Computer science Code (cryptography) Data_CODINGANDINFORMATIONTHEORY Girth (graph theory) Forward error correction Low-density parity-check code Algorithm Circulant matrix
Zdroj:	ICCCS
DOI:	10.1109/ccoms.2019.8821723
Popis:	This paper presents a novel method for constructing high performance unequal error protection (UEP) quasicyclic low-density parity-check (QC-LDPC) codes. These codes are highly efficient and designed with flexible rates, lengths and number of protection levels. The given QC-LDPC codes are based on the combinatorial design. Each circulant constituting the parity check matrix of the UEP code is determined from subsets with the distinct difference between elements. Simulation results indicate that proposed UEP codes have equivalent performance to UEP codes constructed with the higher girth and lower rate, while achieving superior performance than the codes constructed by conventional equal error protection (EEP) techniques.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e9b7cf0487b1364b43053526be2f7711 https://doi.org/10.1109/ccoms.2019.8821723 Zobrazit plný text záznamu