%0 Conference Paper
%A Xiang, Wei
%A Pietrobon, Steven S.
%B 2003 IEEE International Conference on Communications (ICC2003)
%C Anchorage, Alaska, USA
%D 2003
%F usqep3:3382
%I IEEE
%K AWGN; channel capacity; frequency response; intersymbol interference; peak bandwidth normalisation; power normalisation method             
%P 3482-3486
%T On the capacity and normalisation of ISI channels
%U http://eprints.usq.edu.au/3382/
%V 5
%X We investigate the capacity of various ISI channels with additive white Gaussian noise. Previous papers showed a  minimum Eb/N0 of -4.6 dB, 3 dB below the capacity of a flat  channel, is obtained using water pouring capacity formulas for the 1 + D channel. However, these papers did not take into account that the channel power gain can be greater than one when water pouring is used. We present a generic power normalisation method of the channel frequency response, namely peak bandwidth normalisation, to facilitate the fair capacity comparison of various ISI channels. Three types of ISI channel, i.e., adder channels,  RC channels and magnetic recording channels, are examined.  By using our channel power gain normalisation, the capacity  curves of these ISI channels are shown.
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