Covert Communication With Relay Selection
Covert Communication With Relay Selection
复制标题
通过中继选择进行隐蔽通信
DOI：
10.1109/lwc.2020.3033786
复制
发表时间：
2021-02-01
影响因子：
6.3
通讯作者：
Wang, Yajun
中科院分区：
文献类型：
--
作者：
Su, Yinjie;Sun, Hongjian;Wang, Yajun
在这封信中，我们研究隐蔽通信的中继网络与中继选择。我们考虑的情况下，同时转发源的消息，选择的中继机会主义发送自己的消息到目的地隐蔽。我们推导出检测错误概率（PDE）和平均隐蔽率（ACR）的封闭形式，在此基础上，我们分析了系统参数对隐蔽通信性能的影响。我们的分析表明，应用中继选择会导致PDE的降低，但是，当源的传输速率增加时，它可以提供ACR增益。
In this letter, we investigate covert communication in relay networks with relay selection. We consider the scenario that while forwarding the source's message, the selected relay opportunistically transmits its own message to the destination covertly. We derive the probability of detection error (PDE) and the average covert rate (ACR) in a closed form, based on which we analyse the effects of system parameters on the performance of the covert communication. Our analysis indicates that applying relay selection causes a decrease in the PDE, however, it can provide an ACR gain when the transmission rate of the source increases.