Covert Information Embedded Spatial Modulation
Covert Information Embedded Spatial Modulation
复制标题
隐蔽信息嵌入空间调制
DOI：
10.1109/lcomm.2020.3008430
复制
发表时间：
2020-11-01
期刊：
影响因子：
--
通讯作者：
Yang, Ping
中科院分区：
文献类型：
--
作者：
Wu, Chaowu;Xiao, Yue;Yang, Ping
在这封信中，我们提出了一种新的转换信息嵌入空间调制（SM）系统的安全通信，其中发送器试图发送隐蔽信息到特定的接收器，同时保持非预期的接收器不知道的传输。在所提出的系统中，隐蔽信息比特通过激活的天线索引来传送，而公共信息比特通过调制符号来传送。具体地，通过仔细设计空时映射原理来实现转换信息调制，使得其伪装成常规SM天线索引。此外，一个有效的检测方案设计的建议系统。仿真结果表明，该方案与开发的接收机可以提供几乎相同的性能增益，传统的SM，而非预期的接收机很难检测到正确的信息。此外，分析了平均误码率（BER），这也验证了我们的仿真结果。
In this letter, we propose a new convert information embedded spatial modulation (SM) system for secure communications, in which the transmitter tries to send covert information to the specific receiver while keeping the unintended receiver unaware of the transmission. In the proposed system, the covert information bits are conveyed via the activated antenna index while the common information bits are via the modulation symbols. Specifically, the convert information modulation is achieved by carefully designing the space-time mapping principle so that it is disguised as a conventional SM antenna index. Furthermore, an efficient detection scheme is designed for the proposed system. The simulation results show that the proposed scheme with the developed receiver can offer nearly the same performance gain as conventional SM, whereas the unintended receiver can hardly detect the information correctly. Moreover, the average bit error rate (BER) is analyzed, which also validates our simulation results.