The invention relates to a communication apparatus (400) for receiving a multicarrier modulation signal (401) over a communication channel, the communication channel being associated with a channel impulse response vector h, the communication apparatus (400) comprising: a time domain filter (403) configured to filter the multicarrier modulation signal (401) on the basis of a plurality of filter coefficients w configured to reduce the delay spread of the multicarrier modulation signal caused by the communication channel; and a determiner (405) configured to determine the plurality of filter coefficients w on the basis of an effective channel impulse response vector b i , wherein the determiner (405) is configured to determine the effective channel impulse response vector b i by starting from the channel impulse response vector h and iteratively adjusting the effective channel impulse response vector b i -1 of the (i - 1)-th iteration on the basis of an adjustment vector d i -1, wherein each iterative adjustment of the effective channel impulse response vector b i -1 of the (i - 1)-th iteration on the basis of the adjustment vector d i -1 comprises an element-wise division or multiplication operation of the effective channel impulse response vector b i -1 of the (i - 1)-th iteration with the adjustment vector d i -1.