Title :
A simple and effective precoding scheme for noise whitening on intersymbol interference channels
Author :
Laroia, Rajiv ; Tretter, Steven A. ; Farvardin, Nariman
Author_Institution :
AT&T Bell Lab., Murray Hill, NJ, USA
fDate :
10/1/1993 12:00:00 AM
Abstract :
A precoding scheme for noise whitening on intersymbol interference (ISI) channels is presented. This scheme is compatible with trellis-coded modulation and, unlike Tomlinson precoding, allows constellation shaping. It can be used with almost any shaping scheme, including the optimal SVQ shaping, as opposed to trellis precoding, which can only be used with trellis shaping. The implementation complexity of this scheme is minimal-only three times that of the noise prediction filter, hence effective noise whitening can be achieved by using a high-order predictor
Keywords :
encoding; filtering and prediction theory; intersymbol interference; telecommunication channels; trellis codes; white noise; ISI; constellation shaping; high-order predictor; implementation complexity; intersymbol interference channels; noise whitening; optimal SVQ shaping; precoding scheme; trellis-coded modulation; Bandwidth; Decision feedback equalizers; Decoding; Filters; Frequency response; Helium; Interference channels; Intersymbol interference; Modulation coding; Noise shaping;
Journal_Title :
Communications, IEEE Transactions on
