Title :
The pros and cons of democracy
Author :
Calderbank, A.R. ; Daubechies, I.
Author_Institution :
AT&T Labs, Florham Park, NJ, USA
fDate :
6/1/2002 12:00:00 AM
Abstract :
We introduce the concept of "democracy," in which the individual bits in a coarsely quantized representation of a signal are all given "equal weight" in the approximation to the original signal. We prove that such democratic representations cannot achieve the same accuracy as optimal nondemocratic schemes
Keywords :
decoding; encoding; quantisation (signal); signal representation; decoding; democracy; democratic representation; encoding; nondemocratic representation; optimal accuracy; quantized signal representation; sigma-delta converters; signal approximation; Analog-digital conversion; Approximation algorithms; Approximation error; Convolution; Decoding; Filters; Mathematics; Military computing; Quantization; Sampling methods;
Journal_Title :
Information Theory, IEEE Transactions on
DOI :
10.1109/TIT.2002.1003852
