arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0803.2570cs.ITcs.DMmath.COmath.IT
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信息论视角下的不平等差错保护

Unequal Error Protection: An Information Theoretic Perspective

Shashi Borade, Baris Nakiboglu, Lizhong Zheng

摘要:

在指数误差界的基础上,建立了不等错误保护的信息论框架。对于DMC上的定长分组码,在没有反馈的情况下,论证了按位不等错误保护(UEP)和按消息不等错误保护(UEP)的根本区别。通过变长分组码研究了反馈的影响。它示出,反馈结果在两个逐位和消息的UEP显着改善(除了单消息的情况下错过检测)。还考虑了消息式UEP的虚警和误检形式化之间的区别。所有结果都是在接近能力的速度。

英文摘要:

An information theoretic framework for unequal error protection is developed in terms of the exponential error bounds. The fundamental difference between the bit-wise and message-wise unequal error protection (UEP) is demonstrated, for fixed length block codes on DMCs without feedback. Effect of feedback is investigated via variable length block codes. It is shown that, feedback results in a significant improvement in both bit-wise and message-wise UEP (except the single message case for missed detection). The distinction between false-alarm and missed-detection formalizations for message-wise UEP is also considered. All results presented are at rates close to capacity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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