继电器
可靠性(半导体)
计算机科学
计算机网络
蜂窝网络
蜂窝无线电
物联网
计算机安全
基站
功率(物理)
量子力学
物理
作者
Chensi Zhang,Jianhua Ge,Fengkui Gong,Fan Jia,Ningning Guo
出处
期刊:IEEE Systems Journal
[Institute of Electrical and Electronics Engineers]
日期:2020-06-01
卷期号:14 (2): 2192-2201
被引量:7
标识
DOI:10.1109/jsyst.2019.2925033
摘要
This paper investigates security–reliability tradeoff for untrusted and selfish two-way relay-assisted device-to-device (D2D) communications in heterogeneous cellular networks for the Internet of Things (IoT). On one hand, the relay is untrusted and may try to extract useful information during the relaying process. On the other hand, the relay is selfish and is only willing to use the harvesting energy from the sources’ signals for relaying. Both instantaneous and statistical security–reliability tradeoffs are taken into consideration. For instantaneous model, the security and the reliability are characterized by the secrecy rate and the data rate, respectively. We aim at maximizing the tradeoff function of a tradeoff factor subject to a total transmit power constraint. For statistical model, the security and the reliability are characterized by the secrecy outage probability (SOP) and the data outage probability (DOP), respectively. An SOP optimization problem is developed with a DOP constraint and a total transmit power constraint. For both the problems, closed-form solutions are achieved. Simulation results show that both instantaneous and statistical security–reliability tradeoffs can achieve the Pareto optimal front.
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