Design of unequal error protection LDPC codes for higher order constellations
2007 (English)In: IEEE International Conference on Communications, 2007: ICC '07 ; 24 - 28 June 2007, Glasgow, Scotland, Piscataway, NJ: IEEE Communications Society, 2007, 926-931 p.Conference paper (Refereed)
We present an optimization method for unequal error protection (UEP)-LDPC codes with higher order constellations. By modifying the density evolution algorithm under the Gaussian approximation, we propose a flexible code design algorithm for a variable number of protection classes and arbitrary modulation schemes with Gray mapping. Our results show that appropriate code design for higher order constellations reduces the overall bit-error rate. Furthermore, the influence on the UEP capability of the code, that is, the difference in bit-error rate between the protection classes, is investigated.
Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Communications Society, 2007. 926-931 p.
Research subject Signal Processing
IdentifiersURN: urn:nbn:se:ltu:diva-40358DOI: 10.1109/ICC.2007.157Local ID: f7278490-7730-11dc-80da-000ea68e967bISBN: 1-424-40352-9OAI: oai:DiVA.org:ltu-40358DiVA: diva2:1013880
IEEE International Conference on Communications - A : 24/06/2007 - 28/06/2007
Godkänd; 2007; 20071010 (saras)2016-10-032016-10-03Bibliographically approved