Secure Short-Packet Communications in Cognitive Internet of Things

被引：5

作者：

Chen, Yong ^{[1
]}

Xiang, Zhongwu ^{[1
]}

Qiao, Xiaoqiang ^{[2
]}

Zhang, Tao ^{[2
]}

Zhang, Jiang ^{[2
]}

机构：

[1] Coll Commun Engn, Nanjing 210007, Peoples R China

[2] Natl Univ Def Technol, Res Inst 63, Nanjing 210007, Peoples R China

来源：

2020 IEEE THE 3RD INTERNATIONAL CONFERENCE ON ELECTRONICS AND COMMUNICATION ENGINEERING (ICECE) | 2020年

关键词：

Physical layer security; short-packet communications; cognitive IoT; ultra-reliable low latency communication; secrecy throughput;

D O I：

10.1109/ICECE51594.2020.9353025

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

To deal with the problem of spectrum scarcity in the Internet of Things (IoT), cognitive radio technology is introduced into IoT, namely, cognitive IoT. This paper investigates the secrecy performance of secondary wiretap networks in cognitive IoT. Specifically, the low-latency requirement and the security demand in cognitive IoT are guaranteed by using short-packet communications and maximal ratio transmission (MRT) scheme, respectively. Considering the impact of blocklength on transmission delay and secrecy performance, we derive the approximations for secrecy throughput in a closed-form under the secrecy constraints and decoding error probability. In addition, we further analyze the secrecy throughput of the system from two scenarios of the high signal-to-noise ratio (SNR) regime and the infinite blocklength. The numerical results verify the accuracy of the proposed approximations and illustrate the impact of the system parameters on the tradeoff between transmission delay and reliability under a secrecy constraint.

引用

页码：31 / 36

页数：6

共 12 条

[1] Toward Massive, Ultrareliable, and Low-Latency Wireless Communication With Short Packets [J].