hello evyone,
we r tryin to develop a 256 channel wireless ADSL model using d same basic 256 channel ADSL model present in Matlab.so for dis case we hav zero padded d signal before d IFFT block of d DMT modulator.n hav used a raised cosine tx , Rx filter(interpolation factor 2) at d transmitter n reciever block(as a matched filter) .In d reciever end  we hav removed d zero padding.this model works but d frame error rate is extremely high.can someone plz help us out wid dis problem.