Equaliser for multicarrier system

摘要

The present invention relates to methods and arrangements to minimize error contributions in a DMT system where a received DMT-signal is affected by intersymbol interference, intercarrier interference and additive noise. The method comprises the following steps: Calculating intersymbol interference average power. Calculating intercarrier interference average power. Calculating additive noise average power. Calculating a cost function by adding the intersymbol interference average power, the intercarrier interference average power and the additive noise average power. Introducing a constraint, which avoids a trivial solution where the TEQ vector is equal to zero. Minimizing the cost function by optimizing the TEQ vector. <IMAGE>