Half-Duplex Decode-Partial-Forward

Abstract : We propose a new transmission scheme, which we call Decode-Partial-Forward (DPF), for orthogonal half-duplex relay channels. We demonstrate that the DPF scheme achieves significantly higher rates than the conventional DF scheme that is based on repetition coding and it performs close to the capacity bounds of DF relaying. In DPF, the source superimposes two separate codewords and the relay decodes both codewords but it regenerates (forwards) "the more difficult to decode" codeword only. The destination node applies successive interference cancellation in order to decode the two codewords based on the received signals in both time slots. We provide a closed-form solution to find the optimal power and rate allocation for the two superimposed codewords in order to maximize the sum achievable rate. The DPF scheme provides a simple and practical alternative to the advanced cooperative coding techniques.
Type de document :
Communication dans un congrès
WiOpt'12: Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, May 2012, Paderborn, Germany. pp.208-215, 2012
Liste complète des métadonnées

Littérature citée [17 références]  Voir  Masquer  Télécharger

https://hal.inria.fr/hal-00763757
Contributeur : Service Ist Inria Sophia Antipolis-Méditerranée / I3s <>
Soumis le : mardi 11 décembre 2012 - 14:25:59
Dernière modification le : mercredi 12 décembre 2012 - 10:17:40
Document(s) archivé(s) le : mardi 12 mars 2013 - 06:10:30

Fichier

p208-shaqfeh.pdf
Accord explicite pour ce dépôt

Identifiants

  • HAL Id : hal-00763757, version 1

Collections

Citation

Mohammad Shaqfeh, Hussein Alnuweiri. Half-Duplex Decode-Partial-Forward. WiOpt'12: Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, May 2012, Paderborn, Germany. pp.208-215, 2012. 〈hal-00763757〉

Partager

Métriques

Consultations de la notice

85

Téléchargements de fichiers

50