低检测概率通信的基本极限
信息论
2016-11-17 v3 math.IT
摘要
本文考虑了在离散无记忆信道(DMC)或加性白高斯噪声(AWGN)信道上通信的问题,约束条件为观察信道输出的对手能够检测到通信的概率较低。具体而言,当发送码字时与未向信道提供输入时输出分布之间的相对熵必须足够小。对于由“关闭”输入符号引起的输出分布不是由其他输入符号引起的输出分布的混合的 DMC,表明在该准则下可传输的最大信息量随块长度的平方根缩放。AWGN 信道同理。还推导了缩放常数的精确表达式。
引用
@article{arxiv.1506.03236,
title = {Fundamental Limits of Communication with Low Probability of Detection},
author = {Ligong Wang and Gregory Wornell and Lizhong Zheng},
journal= {arXiv preprint arXiv:1506.03236},
year = {2016}
}
备注
Version to appear in IEEE Transactions on Information Theory; minor typos in v2 corrected. Part of this work was presented at ISIT 2015 in Hong Kong