The pros and cons of democracy

被引：26
|
作者：
Calderbank, AR
Daubechies, I
机构：
[1] AT&T Labs Res, Florham Pk, NJ 07932 USA
[2] Princeton Univ, Dept Math, Princeton, NJ 08544 USA
[3] Princeton Univ, Program Appl & Computat Math, Princeton, NJ 08544 USA
来源：
IEEE TRANSACTIONS ON INFORMATION THEORY | 2002年 / 48卷 / 06期
基金：
美国国家科学基金会;
关键词：
democratic decoding; sigma-delta quantization;
D O I：
10.1109/TIT.2002.1003852
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
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.
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页码：1721 / 1725
页数：5
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