s'authentifier
version française rss feed
HAL : hal-00713565, version 1

Fiche détaillée  Récupérer au format
IEEE Signal Processing Letters 19, 8 (2012) 483 - 486
Protocol-Assisted Channel Decoding
Ruijing Hu 1, Michel Kieffer 1, 2, Pierre Duhamel 1
(01/08/2012)

Channel decoding makes use of redundancy in the coded bits. However, any redundancy in the information bitstream can also improve the decoding process. This paper shows that a careful examination of communication standards (including the headers added by the network layers) exhibits some fields which can be considered as redundant, either based on already received packets, or on the standard. The efficient use of this knowledge in the channel decoding process is denoted as protocol-assisted channel decoding. Assuming perfect synchronization and available channel state information, the proposed method applied on 802.11a PHY and MAC layers provides a substantial link budget improvement without modifying the standard, while the introduction of an additional interleaver provides additional bit error rate improvements.
1 :  Laboratoire des signaux et systèmes (L2S)
UMR8506 CNRS – SUPELEC – Université Paris XI - Paris Sud
2 :  Laboratoire Traitement et Communication de l'Information [Paris] (LTCI)
Télécom ParisTech – CNRS : UMR5141
Division Télécoms et Réseaux
Informatique/Théorie de l'information et codage

Mathématiques/Théorie de l'information et codage

Sciences de l'ingénieur/Traitement du signal et de l'image

Informatique/Traitement du signal et de l'image