Dual-Threshold Based Secure On-Off Transmission Scheme for Dense HCNs with Imperfect CSI  

作　　者：Yunjia Xu Kaizhi Huang Yi Zou Xin Hu 

机构地区：[1]National Digital Switching System Engineering & Technological Research Center

出　　处：《China Communications》2019年第3期132-142,共11页中国通信（英文版）

基　　金：supported in part by National Natural Science Foundation of China under Grants No. 61871404, 61401510, 61521003, 61501516

摘　　要：In this paper, we propose a dual-threshold based secure On-Off transmission scheme, where signals are transmitted only if the channel condition can guarantee secure and reliable communication. First, we present a dynamic access strategy to increase access efficiency, which provides an access region for the intended user. Then, we propose an emission control policy to transmit signals according to the current channel condition, which declines the influence of channel estimation errors and guarantees qualities of communication links. Furthermore, we give a comprehensive performance analysis for the proposed scheme in terms of connection outage probability(COP) and secrecy outage probability(SOP), and present a dual-threshold optimization model to further support the performance. Numerical results verify that the secure On-Off transmission scheme can increase the system secure energy efficiency and guarantee reliable and secure communication.In this paper, we propose a dual-threshold based secure On-Off transmission scheme, where signals are transmitted only if the channel condition can guarantee secure and reliable communication. First, we present a dynamic access strategy to increase access efficiency, which provides an access region for the intended user. Then, we propose an emission control policy to transmit signals according to the current channel condition, which declines the influence of channel estimation errors and guarantees qualities of communication links. Furthermore, we give a comprehensive performance analysis for the proposed scheme in terms of connection outage probability(COP) and secrecy outage probability(SOP), and present a dual-threshold optimization model to further support the performance. Numerical results verify that the secure On-Off transmission scheme can increase the system secure energy efficiency and guarantee reliable and secure communication.

关 键 词：physical layer security imperfect CSI DENSE HETEROGENEOUS cellular networks ON-OFF transmission SECURE energy efficiency 

分 类 号：TN[电子电信]