UEP Concepts in Modulation and Coding
Joint Authors
Declercq, David
Hassan, Khaled
Sassatelli, Lucile
Henkel, Werner
Sandberg, Sara
von Deetzen, Neele
Source
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-08-10
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Information Technology and Computer Science
Abstract EN
First unequal error protection (UEP) proposals date back to the 1960's (Masnick and Wolf; 1967), but now with the introduction of scalable video, UEP develops to a key concept for the transport of multimedia data.
The paper presents an overview of some new approaches realizing UEP properties in physical transport, especially multicarrier modulation, or with LDPC and Turbo codes.
For multicarrier modulation, UEP bit-loading together with hierarchical modulation is described allowing for an arbitrary number of classes, arbitrary SNR margins between the classes, and arbitrary number of bits per class.
In Turbo coding, pruning, as a counterpart of puncturing is presented for flexible bit-rate adaptations, including tables with optimized pruning patterns.
Bit- and/or check-irregular LDPC codes may be designed to provide UEP to its code bits.
However, irregular degree distributions alone do not ensure UEP, and other necessary properties of the parity-check matrix for providing UEP are also pointed out.
Pruning is also the means for constructing variable-rate LDPC codes for UEP, especially controlling the check-node profile.
American Psychological Association (APA)
Henkel, Werner& Hassan, Khaled& von Deetzen, Neele& Sandberg, Sara& Sassatelli, Lucile& Declercq, David. 2010. UEP Concepts in Modulation and Coding. Advances in Multimedia،Vol. 2010, no. 2010, pp.1-14.
https://search.emarefa.net/detail/BIM-470477
Modern Language Association (MLA)
Henkel, Werner…[et al.]. UEP Concepts in Modulation and Coding. Advances in Multimedia No. 2010 (2010), pp.1-14.
https://search.emarefa.net/detail/BIM-470477
American Medical Association (AMA)
Henkel, Werner& Hassan, Khaled& von Deetzen, Neele& Sandberg, Sara& Sassatelli, Lucile& Declercq, David. UEP Concepts in Modulation and Coding. Advances in Multimedia. 2010. Vol. 2010, no. 2010, pp.1-14.
https://search.emarefa.net/detail/BIM-470477
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-470477