Bit rate maximization for multicast LP-OFDM systems in PLC context

Ali Maiga (1) , Jean-Yves Baudais (2) , Jean-François Hélard (2)

1 IETR - Institut d'Electronique et de Télécommunications de Rennes
2 IETR - Institut d'Électronique et des Technologies du numéRique

In this paper, we propose a new resource allocation algorithm based on linear precoding technique for multicast OFDM systems. Linear precoding technique applied to OFDM systems has already proved its ability to significantly increase the system throughput in a powerline communication (PLC) context. Simulations through PLC channels show that this algorithm outperforms the classical multicast method (up to 7.3% bit rate gain) and gives better performance than the hierarchical data method in a realistic number of multicast users.

Domaines: Réseaux et télécommunications [cs.NI]; Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]

Ali Maiga, Jean-Yves Baudais, Jean-François Hélard. Bit rate maximization for multicast LP-OFDM systems in PLC context. WSPLC, Oct 2009, Udine, Italy. pp.93-95. ⟨hal-00448193⟩