Universal Quadratic Lower Bounds on Source Coding Error Exponents

Universal Quadratic Lower Bounds on Source Coding Error Exponents
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源编码误差指数的通用二次下界

DOI:
10.1109/ciss.2007.4298398
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发表时间:
2007
期刊:
2007 41st Annual Conference on Information Sciences and Systems
影响因子:
--
通讯作者:
A. Sahai
A. Sahai
中科院分区:
--
文献类型:
--
作者:
Cheng Chang;A. Sahai

文献摘要

被引文献

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我们考虑的问题,块大小的选择,以实现所需的概率的错误的通用源编码。虽然Baron等人(2004; 1973)使用中心极限定理技术研究了已知分布的熵附近的速率问题,但我们对未知分布的所有速率感兴趣,并使用误差指数技术。通过从Gallager(1971)的练习中采用Gallager的技术,我们导出了信源编码误差指数的一个通用下界,该下界仅取决于字母表的大小,并且是熵的差距的二次方。
We consider the problem of block-size selection to achieve a desired probability of error for universal source coding. While Baron, et al. (2004; 1973) studied this question for rates in the vicinity of entropy for known distributions using central-limit-theorem techniques, we are interested in all rates for unknown distributions and use error-exponent techniques. By adapting a technique of Gallager from the exercises of Gallager (1971), we derive a universal lower bound to the source-coding error exponent that depends only on the alphabet size and is quadratic in the gap to entropy.