Coded Adaptive Linear Precoded Discrete Multitone Over PLC Channel

Abstract--Discrete multitone modulation (DMT) systems exploit the capabilities of orthogonal subcarriers to cope efficiently with narrowband interference, high frequency attenuations and multipath fadings with the help of simple equalization filters. Adaptive linear precoded discrete multitone (LP-DMT) system is based on classical DMT, combined with a linear precoding component. 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 LPDMT system is presented in the power line communication (PLC) context with a loading algorithm which accommodates 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 proposed algorithm is analyzed. Theoretical coding gains are derived and simulation results are pr...

• Type: Journal
• Year: 2008
• Where: CORR
• Authors: Fahad Syed Muhammad, Jean-Yves Baudais, Jean-François Hélard, Matthieu Crussière
• Keywords: Adaptive Lp-dmt, Channel Coding Scheme, Coded Adaptive Lpdmt, CORR 2008, Education