Conference Papers Year : 2008

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

Abstract

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.

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hal-00325790 , version 1 (30-09-2008)

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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⟩
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