On Unequal Error Protection LDPC codes based on plotkin-type constructions

Vidya Kumar, Olgica Milenkovic

Research output: Contribution to conferencePaperpeer-review


In this paper, a family of Unequal Error-Protection (UEP) Low-Density Parity-Check (LDPC) codes, based on Plotkintype of constructions, is introduced. The codes are decoded in multiple stages in such a manner that the order of decoding determines the level of error protection. The level of UEP among the code bits can be further increased by properly combining structured and random-like LDPC component codes with carefully chosen properties, and by using some new reliability features. The proposed scheme also offers a good trade-off between code performance on one side and encoding/decoding and storage complexity on the other side. To the best of our knowledge, the proposed approach represents the first iterative UEP method with analytically provable properties.

Original languageEnglish (US)
Number of pages5
StatePublished - 2004
Externally publishedYes
EventGLOBECOM'04 - IEEE Global Telecommunications Conference - Dallas, TX, United States
Duration: Nov 29 2004Dec 3 2004


OtherGLOBECOM'04 - IEEE Global Telecommunications Conference
Country/TerritoryUnited States
CityDallas, TX

ASJC Scopus subject areas

  • General Engineering


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