Title :
Lattice quantizers: Entropy reduction by proper tie-handling (Corresp.)
fDate :
3/1/1986 12:00:00 AM
Abstract :
The entropy of a lattice quantizer can be lowered by breaking ties in rounding off in favor of the closest lattice point of highest probability. For a differential pulse-code modulation (DPCM) signal, this means rounding off toward the component of smallest norm. This variant of the algorithm of Conway and Sloane reduces entropy without sacrificing mean-square error.
Keywords :
Differential pulse-code modulation; Quantization; Business; Cities and towns; Decoding; Distribution functions; Entropy; Lattices; Probability distribution; Pulse modulation; Quantization; Random variables;
Journal_Title :
Information Theory, IEEE Transactions on
DOI :
10.1109/TIT.1986.1057140
