On iterative performance of LDPC and Root-LDPC codes over block-fading channels
| Contribuinte(s) |
Universitat Pompeu Fabra |
|---|---|
| Data(s) |
02/07/2013
|
| Resumo |
This paper presents our investigation on iterativedecoding performances of some sparse-graph codes on block-fading Rayleigh channels. The considered code ensembles are standard LDPC codes and Root-LDPC codes, first proposed in and shown to be able to attain the full transmission diversity. We study the iterative threshold performance of those codes as a function of fading gains of the transmission channel and propose a numerical approximation of the iterative threshold versus fading gains, both both LDPC and Root-LDPC codes.Also, we show analytically that, in the case of 2 fading blocks,the iterative threshold root of Root-LDPC codes is proportional to (α1 α2)1, where α1 and α2 are corresponding fading gains.From this result, the full diversity property of Root-LDPC codes immediately follows. Comunicació presentada en la 48th Annual Allerton Conference on Communications, Control and Computing, celebrada els dies 29 i 30 de setembre i 1 d’octubre de 2010 a Monticello, Illinois (EUA), organitzada pel Coordinated Science Laboratory de l’University of Illinois at Urbana-Champaign. This work was supported by the European FP7 ICT-STREP DAVINCI project under contract INFSO-ICT-216203 |
| Identificador | |
| Idioma(s) |
eng |
| Publicador |
Institute of Electrical and Electronics Engineers (IEEE) |
| Direitos |
info:eu-repo/semantics/openAccess © 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.The final published article can be found at <a href="http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5706903">http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5706903</a> |
| Palavras-Chave | #Informació, Teoria de la #Comunicació sense fil, Sistemes de |
| Tipo |
info:eu-repo/semantics/conferenceObject info:eu-repo/semantics/publishedVersion |
