A coded bit-loading linear precoded discrete multitone solution for power line communication

Fahad Syed Muhammad (1) , Jean-Yves Baudais (1) , Jean-François Hélard (2) , Matthieu Crussière (1)

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

Linear precoded discrete multitone modulation (LP-DMT) system has been already proved advantageous with adaptive resource allocation algorithm in a power line communication (PLC) context. In this paper, we investigate the bit and energy allocation algorithm of an adaptive LP-DMT system taking into account the channel coding scheme. A coded adaptive LP-DMT system is presented in the PLC context with a loading algorithm which ccommodates the channel coding gains in bit and energy calculations. The performance of a concatenated channel coding scheme, consisting of an inner Wei's 4-dimensional 16-states trellis code and an outer Reed-Solomon code, in combination with the roposed algorithm is analyzed. Simulation results are presented for a fixed target bit error rate in a multicarrier scenario under power spectral density constraint. Using a multipath model of PLC channel, it is shown that the proposed coded adaptive LP-DMT system performs better than classical coded discrete multitone.

Domaines: Théorie de l'information [cs.IT]; Théorie de l'information et codage [math.IT]; Traitement du signal et de l'image [eess.SP]; Electronique; Traitement du signal et de l'image [eess.SP]

Fahad Syed Muhammad, Jean-Yves Baudais, Jean-François Hélard, Matthieu Crussière. A coded bit-loading linear precoded discrete multitone solution for power line communication. International Workshop on Signal Processing Advances in Wireless Communications, Jul 2008, Recife, Pernambuco, Brazil. pp.555--559, ⟨10.1109/SPAWC.2008.4641669⟩. ⟨hal-00325790⟩