多目标遗传算法方向调制物理层安全通信信号设计

doi:10.3969/j.issn.0255-8297.2014.01.009

应用科学学报 ›› 2014, Vol. 32 ›› Issue (1): 51-56.doi: 10.3969/j.issn.0255-8297.2014.01.009

多目标遗传算法方向调制物理层安全通信信号设计

洪涛1，宋茂忠2，刘渝2

1. 南京邮电大学通信与信息工程学院，南京210003
2. 南京航空航天大学电子信息工程学院，南京210016

收稿日期:2011-09-06 修回日期:2011-12-12 出版日期:2014-01-31 发布日期:2011-12-12
作者简介:洪涛，博士生，研究方向：多天线系统、调制技术、物理层安全通信，E-mail：hongt@njupt.edu.cn；宋茂忠，教授，博导，研究方向：调制信号设计与接收、多天线通信跟踪定位综合化技术、卫星导航，E-mail：smz108@nuaa.edu.cn；刘渝，教授，博导，研究方向：信号处理、信号检测与估计、电子侦察和电子智能化系统，E-mail：liuyu_nuaa@yahoo.com.cn
基金资助:
江苏省自然科学基金(No.BK2009367)；航空基金(No.20095152026)资助

Design of Directional Modulation Signal Based on Multi-objective
Genetic Algorithm for Physical Layer Secure Communication

HONG Tao1, SONG Mao-zhong2, LIU Yu2

1. College of Telecommunications and Information Engineering, Nanjing University of
Posts and Telecommunications, Nanjing 210003, China
2. College of Electronic and Information Engineering, Nanjing University of Aeronautics and
Astronautics, Nanjing 210016, China

Received:2011-09-06 Revised:2011-12-12 Online:2014-01-31 Published:2011-12-12

摘要/Abstract

摘要： 提出了一种运用多目标函数遗传算法的方向调制信号. 根据星座点之间欧氏距离与误码性能之间的关系，采用多目标函数综合相移器相移值，使得发射信号星座图在期望方位与基带数字调制信号相同，而在其他方位产生最大程度的畸变. 相比于传统的方向调制信号，用文中方法发射的方向调制信号具有更窄的波束宽度. 仿真结果表明，所提出的多目标方向调制物理层安全通信信号具有更强的防窃听性能.

关键词: 方向调制, 射频调制, 物理层安全通信, 相控阵, 遗传算法

Abstract: A directional modulation signal based on multi-objective genetic algorithm is proposed. According to the relationship between Euclidean distance of constellation points and bit error rate performance, the phase shift values are generated by means of optimizing multi-objective genetic algorithm to synthesize a directional modulation signal. This signal transmits different signal constellation at different directions. In the desired direction, the signal’s constellation is the same as the traditional baseband modulation signal while the constellation is scrambled in other directions. Compared with the traditional directional modulation signal, the proposed directional modulation signal has a narrower beam-width. Simulation results show that the technique
offer a better physical layer secure transmission signal for wireless communication.

Key words: directional modulation, RF modulation, physical layer secure communication, phased array, genetic algorithm

中图分类号:

TN929.5

洪涛1，宋茂忠2，刘渝2. 多目标遗传算法方向调制物理层安全通信信号设计[J]. 应用科学学报, 2014, 32(1): 51-56.

HONG Tao1, SONG Mao-zhong2, LIU Yu2. Design of Directional Modulation Signal Based on Multi-objective
Genetic Algorithm for Physical Layer Secure Communication[J]. Journal of Applied Sciences, 2014, 32(1): 51-56.

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多目标遗传算法方向调制物理层安全通信信号设计

Design of Directional Modulation Signal Based on Multi-objective
Genetic Algorithm for Physical Layer Secure Communication

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多目标遗传算法方向调制物理层安全通信信号设计

Design of Directional Modulation Signal Based on Multi-objective Genetic Algorithm for Physical Layer Secure Communication

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Design of Directional Modulation Signal Based on Multi-objective
Genetic Algorithm for Physical Layer Secure Communication