Energy-efficient Alternating Iterative Secure Structure of Maximizing Secrecy Rate for Directional Modulation Networks
Energy-efficient Alternating Iterative Secure Structure of Maximizing Secrecy Rate for Directional Modulation Networks
复制标题
定向调制网络保密率最大化的节能交替迭代安全结构
DOI:
10.1016/j.phycom.2019.100949
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发表时间:
2019-07
期刊:
影响因子:
--
通讯作者:
Feng Shu
中科院分区:
文献类型:
--
作者:
Linlin Sun;Jiayu Li;Yu Zhang;Yuntian Wang;Linqing Gui;Fanyuan Li;Haocheng Li;Zhihong Zhuang;Feng Shu
In a directional modulation (DM) network, the issues of security and privacy have taken on an increasingly important role. Since the power allocation of confidential message and artificial noise will make a constructive effect on the system performance, it is important to jointly consider the relationship between the beamforming vectors and the power allocation (PA) factors. To maximize the secrecy rate (SR), an alternating iterative structure (AIS) between the beamforming and PA is proposed. With only two or three iterations, it can rapidly converge to its rate ceil. Simulation results indicate that the SR performance of proposed AIS is much better than the null-space projection (NSP) based PA strategy in the medium and large signal-to-noise ratio (SNR) regions, especially when the number of antennas at the DM transmitter is small.
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DOI:
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发表时间:
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