FOCUSED CODES FOR CHANNELS WITH SKEWED ERRORS

被引：6

作者：

FUJA, TE ^{[1
]}

HEEGARD, CD ^{[1
]}

机构：

[1] CORNELL UNIV,SCH ELECT ENGN,ITHACA,NY 14853

来源：

IEEE TRANSACTIONS ON INFORMATION THEORY | 1990年 / 36卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1109/18.53737

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Consider a channel with inputs and outputs in the field F (q > 2). We say the channel is skewed on a set B⊂ Fq* if the additive noise generated by the channel is likely to lie in ℬ that is, ℬ is a set of “common” errors. Our concern is the construction of focused codes that are appropriate for such channels. We say a code is (t1,t2)-focused on ℬ if it can correct up to t1+ t2errors provided at most t1of those errors lie outside of ℬ the strategy is to offer different levels of protection against “common” and “uncommon” errors and so provide novel tradeoffs between performance and rate. Techniques for constructing focused codes and bounds on their rates are described. © 1990 IEEE

引用

页码：773 / 783

页数：11

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