arXiv 0809.51912008-09-30cs.ITmath.IT

A Coded Bit-Loading Linear Precoded Discrete Multitone Solution for Power Line Communication

Fahad Syed Muhammad, Jean-Yves Baudais, Jean-François Hélard, Matthieu Crussière

发表信息：: International Workshop on Signal Processing Advances in Wireless Communications, Recife, Pernambuco : Brazil (2008)
DOI：: 10.1109/SPAWC.2008.4641669

英文摘要：

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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